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Punt SE, Caicedo MR, Rhodes AC, Ilardi SS, Hamilton JL. A semi-structured interview is associated with bariatric surgery outcomes. J Behav Med 2024; 47:483-491. [PMID: 38393445 DOI: 10.1007/s10865-024-00471-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 01/18/2024] [Indexed: 02/25/2024]
Abstract
Pre-surgical psychological evaluations (PSPE) are required by many insurance companies and used to help identify risk factors that may compromise bariatric post-surgical outcomes. These evaluations, however, are not yet standardized. The present study investigated the utility of a semi-structured assessment, Stanford Integrated Psychosocial Assessment for Transplantation (SIPAT), on post-surgical outcomes across 18 months. A total of 272 adult patients underwent a psychosocial evaluation and received bariatric surgery November 2017 to September 2020 at a Midwestern academic medical center. Average age at pre-surgical evaluation was 45.2 (SD = 10.7) years and 82.3% of patients were female (n = 224). With an a priori α of 0.05, multi-level modeling with weight as the outcome and regression with complications as the outcome were used. Higher SIPAT Patient Readiness, indicating difficulty with adhering to health behaviors and a reduced understanding of bariatric surgery, was associated with elevated patient weight at the 18-month follow-up (𝛽 = 0.129, p = 0.03). Higher SIPAT Social Support, was associated with patient weight at the 18-month follow-up, with reduced support associated with greater weight (𝛽 = 0.254, p = 0.004). Higher SIPAT Social Support also was associated with a greater risk of complications across the 18-month follow-up window (𝛽 = -0.108, p = 0.05). Patients with higher readiness to adhere to behavioral changes, and those reporting an intact social support system, generally weighed less at 18 months. The SIPAT may be considered as part of the standardized pre-surgical assessment, however, further research is required to elucidate its utility.
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Affiliation(s)
- Stephanie E Punt
- Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, 760 Westwood Plaza, Los Angeles, CA, 90024, USA.
| | - Mariana Rincon Caicedo
- Department of Psychology, University of Kansas, 1415 Jayhawk Blvd, Lawrence, KS, 66045, USA
| | - Ashley C Rhodes
- Department of Psychiatry and Behavioral Sciences, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS, 66160, USA
| | - Stephen S Ilardi
- Department of Psychology, University of Kansas, 1415 Jayhawk Blvd, Lawrence, KS, 66045, USA
| | - Jessica L Hamilton
- Department of Psychiatry and Behavioral Sciences, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS, 66160, USA
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2
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Adjei Boakye E, Sykes KJ, Hamilton JL, Cash ED, Duffy NM, Maurer S, Williams AM. Head and neck oncology professionals' perceptions of suicide risk screening among patients. Oral Oncol 2024; 151:106728. [PMID: 38402846 DOI: 10.1016/j.oraloncology.2024.106728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 02/18/2024] [Indexed: 02/27/2024]
Affiliation(s)
- Eric Adjei Boakye
- Henry Ford Health + Michigan State University Health Sciences, Detroit, MI, USA; Department of Public Health Sciences, Henry Ford Health, Detroit, MI, USA; Department of Otolaryngology - Head and Neck Surgery, Henry Ford Health, Detroit, MI, USA; Department of Epidemiology and Biostatistics, Michigan State University College of Human Medicine, East Lansing, MI, USA.
| | - Kevin J Sykes
- Health and Wellness Center, Baylor Scott & White Health, Dallas, TX, USA
| | - Jessica L Hamilton
- Department of Psychiatry and Behavioral Sciences, University of Kansas Medical Center, Kansas City, KS, USA
| | - Elizabeth D Cash
- Department of Otolaryngology-Head and Neck Surgery and Communicative Disorders, University of Louisville, Louisville, KY, USA; Brown Cancer Center, University of Louisville Health, Louisville, KY, USA
| | - Nicole M Duffy
- Helen F. Graham Cancer Center & Research Institute, Christiana Care Health System, Newark, DE, USA
| | - Stacey Maurer
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Amy M Williams
- Office of Physician Well-being and Professionalism, Corewell Health, Southfield, MI, USA
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3
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Oshin LA, Boyd SI, Jorgensen SL, Kleiman EM, Hamilton JL. Exposure to Racism on Social Media and Acute Suicide Risk in Adolescents of Color: Results From an Intensive Monitoring Study. J Am Acad Child Adolesc Psychiatry 2024:S0890-8567(24)00139-4. [PMID: 38537735 DOI: 10.1016/j.jaac.2024.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/22/2023] [Accepted: 03/18/2024] [Indexed: 04/14/2024]
Abstract
Youth of color are often exposed to racism at both systemic and individual levels. Interpersonal racial/ethnic discrimination is the behavioral manifestation of individual racism.1,2 While direct individual experiences of racism (eg, comments directed at the individual) have deleterious effects for the socioemotional well-being of youth of color,3 research also points to the negative effects of broader exposure to racism (eg, viewing racist comments, images, or videos online1,2) that is not experienced directly. Now that social media (SM) has become a prominent and ubiquitous source of social interactions for adolescents, research on the influence of racism on youth must contend with this new medium. This is especially the case for youth of color, particularly Black and Hispanic/Latine youth, who report more SM use than White youth who do not identify as Hispanic/Latine.4 The unique features of SM, including its permanence, publicness, and personalized algorithms, may increase both direct and indirect experiences of online racism for youth of color, particularly due to its constant availability and highly visual nature, which likely expose and re-expose youth of color to a variety of online racist experiences. Approximately 20% of all Black adolescents sampled in a large national survey reported that they were the target of online bullying or harassment because of their racial or ethnic identity.4 Indeed, exposure to direct and indirect online racism is associated with negative mental health outcomes for youth of color,5,6 including posttraumatic symptoms, depression, and anxiety.
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Affiliation(s)
- Linda A Oshin
- Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Simone Imani Boyd
- Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | | | - Evan M Kleiman
- Rutgers, The State University of New Jersey, New Brunswick, New Jersey
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4
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Semenza DC, Hamilton JL, Testa A, Jackson DB. Individual and cumulative firearm violence exposure: Implications for sleep among Black and American Indian/Alaska Native adults. Ann Epidemiol 2024; 91:18-22. [PMID: 38244953 DOI: 10.1016/j.annepidem.2024.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/11/2024] [Accepted: 01/17/2024] [Indexed: 01/22/2024]
Abstract
PURPOSE We investigated the relationship between various forms of firearm violence exposure and sleep problems among nationally representative samples of Black (N = 3015) and American Indian and Alaska Native (AI/AN) (N = 527) adults, focusing on difficulties falling asleep, staying asleep, and waking too early. Survey data were collected in April and May 2023. METHODS We employed negative binomial regression models to analyze the associations between the different types of firearm violence exposure and sleep problems. We further examined associations between cumulative firearm violence exposure and sleep outcomes. RESULTS A substantial proportion of Black (59%) and AI/AN (56%) adults reported experiencing some form of firearm violence exposure. Being threatened with a firearm emerged as a consistent factor associated with sleep problems for both racial groups. Witnessing or hearing about shootings was linked to sleep problems in the Black sample, while cumulative firearm violence exposure was associated with all sleep problems in both groups. CONCLUSIONS Individual and cumulative firearm violence exposure is associated with increased sleep problems among Black and AI/AN adults.
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Affiliation(s)
- Daniel C Semenza
- Department of Sociology, Anthropology, and Criminal Justice, Rutgers University, Camden, NJ, USA; Department of Urban-Global Public Health, Rutgers University, Piscataway, NJ, USA; New Jersey Gun Violence Research Center, Rutgers University, Piscataway, NJ, USA.
| | | | - Alexander Testa
- Department of Management, Policy and Community Health, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Dylan B Jackson
- Department of Population, Family, and Reproductive Health, Bloomberg School of Public Health, Johns Hopkins University, Maryland, MD, USA
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5
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Boyd SI, Moore A, Moghaddas S, Hamilton JL. Perceived functions and importance of digital media use and adolescent depression and suicidal ideation. J Adolesc 2024. [PMID: 38402410 DOI: 10.1002/jad.12311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 02/26/2024]
Abstract
INTRODUCTION Although social media (SM) use is nearly ubiquitous among adolescents, there is a lack of clarity concerning the relationship between SM use and mental health outcomes like depression and suicidal ideation (SI), which increase during adolescence. Much of the previous literature has focused on the frequency of SM use; however, the current study examined the relationship between the perceived importance of three types of interactions and functions of SM use and depressive symptoms and suicidal ideation. METHODS A sample of 4057 adolescents (M age = 14.6; 47.0% girls; 69.0% Non-Hispanic/Latine White) were recruited via an online survey manager between February and March 2019. Participants completed the Adolescent Digital Technology Interactions and Importance (ADTI) Scale, which assessed the perceived importance of bridging online and offline experiences (bridging), going outside one's identity or offline experience (identity), and facilitating social connections (social). Participants also completed measures of depressive symptoms and SI and a self-report measure of SM use. A series of path analyses were conducted to examine the relationship between bridging, identity, social, and depressive symptoms and SI. RESULTS After accounting for covariates (gender identity, racial identity, age, and SM use), bridging was negatively associated with depressive symptoms, whereas identity was positively associated with depressive symptoms. Bridging and social connection were negatively associated with SI, whereas identity was positively associated with SI. Gender moderated these relationships; however, racial identity did not. CONCLUSION The results highlight the importance of understanding adolescent SM use beyond screen time in relation to depression and SI.
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Affiliation(s)
- Simone Imani Boyd
- Department of Psychology, Rutgers, the State University of New Jersey, New Brunswick, New Jersey, USA
| | - Adia Moore
- School of Social Work, Columbia University, New York, USA
| | | | - Jessica L Hamilton
- Department of Psychology, Rutgers, the State University of New Jersey, New Brunswick, New Jersey, USA
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Evans SC, Hamilton JL, Boyd SI, Karlovich AR, Ladouceur CD, Silk JS, Bylsma LM. Daily Associations Between Sleep and Affect in Youth at Risk for Psychopathology: The Moderating Role of Externalizing Symptoms. Res Child Adolesc Psychopathol 2024; 52:35-50. [PMID: 37405590 PMCID: PMC10766867 DOI: 10.1007/s10802-023-01087-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2023] [Indexed: 07/06/2023]
Abstract
Problems with sleep, emotion regulation, and externalizing psychopathology are interrelated, but little is known about their day-to-day associations in youth. We examined self-reported daily sleep quality as a bidirectional predictor of next-day positive and negative affect (PA/NA), with externalizing symptoms as a moderator. Data were drawn from an ecological momentary assessment (EMA) study involving 82 youths (ages 9-13; 50% female; 44% White, 37% Black/African American) at high (n = 41) or low (n = 41) familial risk for psychopathology. Parents rated youths' externalizing symptoms at baseline. Youths then completed a 9-day EMA protocol, reporting sleep quality 1x/day and affect 4-8x/day. Daily means, peaks, and variability in PA and NA were computed. Multilevel models examined bidirectional associations between sleep and affect (between- and within-person), testing externalizing symptoms as a moderator and controlling for age and sex. In models of sleep predicting affect: Within-person, poorer-than-usual sleep quality predicted greater variability and higher peaks in next-day NA, but only for youth with higher levels of externalizing symptoms. Between-person, poor sleep quality and higher levels of externalizing symptoms predicted lower mean and peak PA. In models of affect predicting sleep: Within-person, lower-than-usual mean PA predicted poorer subsequent sleep quality, but only for youth with higher levels of externalizing symptoms. Between-person, youths with higher mean and peak PA had better sleep quality. These findings suggest that affective functioning is bidirectionally linked to daily self-reported sleep quality among high- and low-risk youth. Specific disturbances in daily sleep-affect cycles may be distinctly associated with externalizing psychopathology.
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Affiliation(s)
- Spencer C Evans
- Department of Psychology, University of Miami, Coral Gables, FL, USA
| | | | | | | | - Cecile D Ladouceur
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jennifer S Silk
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Lauren M Bylsma
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA.
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA.
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7
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Maity A, Wang AW, Dreier MJ, Wallace V, Orchard F, Schleider JL, Loades ME, Hamilton JL. How do adolescents experience a newly developed Online Single Session Sleep Intervention? A Think-Aloud Study. Clin Child Psychol Psychiatry 2023:13591045231205475. [PMID: 37978949 DOI: 10.1177/13591045231205475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
BACKGROUND Sleep problems are common in adolescents and have detrimental impacts on physical and mental health and daily functioning. Evidence-based treatment like cognitive behaviour therapy for insomnia (CBT-I) is often hard to access, and adolescents may not engage in and adhere to longer, clinician-delivered interventions. Brief, self-guided, and accessible sleep interventions are needed. OBJECTIVE To explore the user experience of a prototype online self-help single session sleep intervention developed for adolescents. METHODS Eleven participants aged 17-19 years (8 females, 3 males) took part in online retrospective think-aloud interviews. Participants first completed the prototype intervention independently and were then shown the intervention page by page and asked to verbalise their thoughts and experiences. Transcripts were analyzed thematically. RESULTS Participants found the intervention helpful. Four themes were generated - 'Educative: Learning, but more fun', 'Effortless: Quicker and Easier', 'Personalization: Power of Choice', and 'Positivity: Just Good Vibes'. The theme 'Educative: Learning, but more fun' encompassed two sub-themes 'Opportunity to Learn' and 'Aesthetics and Learning'. These themes reflected participants' views that the intervention was educative, personalised, solution-oriented and easy to use, but could incorporate more graphics and visuals to aid in learning and could be made more effortless and positive through modifications to its design. CONCLUSIONS Findings convey the importance of ensuring educative well-designed content, personalization, a positive tone, and ease of use while designing interventions targeting adolescents's sleep and mental health. They also indicate areas for further developing the intervention.
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Affiliation(s)
- Ananya Maity
- Department of Psychology, University of Bath, Bath, UK
| | - Angela W Wang
- Department of Psychology, Rutgers University, New Brunswick, USA
| | - Melissa J Dreier
- Department of Psychology, Rutgers University, New Brunswick, USA
| | | | - Faith Orchard
- School of Psychology, University of Sussex, Brighton, UK
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8
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Do QB, McKone KMP, Hamilton JL, Stone LB, Ladouceur CD, Silk JS. The link between adolescent girls' interpersonal emotion regulation with parents and peers and depressive symptoms: A real-time investigation. Dev Psychopathol 2023:1-15. [PMID: 37933501 DOI: 10.1017/s0954579423001359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Adolescents often experience heightened socioemotional sensitivity warranting their use of regulatory strategies. Yet, little is known about how key socializing agents help regulate teens' negative emotions in daily life and implications for long-term adjustment. We examined adolescent girls' interpersonal emotion regulation (IER) with parents and peers in response to negative social interactions, defined as parent and peer involvement in the teen's enactment of emotion regulation strategies. We also tested associations between rates of daily parental and peer IER and depressive symptoms, concurrently and one year later. Adolescent girls (N = 112; Mage = 12.39) at temperamental risk for depressive disorders completed a 16-day ecological momentary assessment protocol measuring reactivity to negative social interactions, parental and peer IER, and current negative affect. Results indicated that adolescents used more adaptive strategies with peers and more maladaptive strategies with parents in daily life. Both parental and peer IER down-regulated negative affect, reflected by girls' decreased likelihood of experiencing continued negative affect. Higher proportions of parental adaptive IER predicted reduced depressive symptoms one year later. Findings suggest that both parents and peers effectively help adolescent girls down-regulate everyday negative emotions; however, parents may offer more enduring benefits for long-term adjustment.
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Affiliation(s)
- Quyen B Do
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
| | | | | | - Lindsey B Stone
- Department of Psychology, Georgia Southern University, Statesboro, GA, USA
| | - Cecile D Ladouceur
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Jennifer S Silk
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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9
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Bettis AH, Vaughn-Coaxum RA, Lawrence HR, Hamilton JL, Fox KR, Augsberger A. Key Challenges and Potential Strategies for Engaging Youth with Lived Experience in Clinical Science. J Clin Child Adolesc Psychol 2023:1-14. [PMID: 37889603 PMCID: PMC11052921 DOI: 10.1080/15374416.2023.2264389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Abstract
Centering the perspectives of youth with lived experience (YWLE) in psychopathology is critical to engaging in impactful clinical research to improve youth mental health outcomes. Over the past decade there has been a greater push in clinical science to include community members, and especially community members with lived experience, in all aspects of the research process. The goal of this editorial is to highlight the need for and importance of integrating YWLE into every stage of clinical science research, from idea generation to interpretation and dissemination of research findings. We identify five key problems associated with pursuing research on adolescent mental health without involvement of YWLE and propose strategies to overcome barriers to youth engagement in clinical science research. We conclude with a call to action, providing guidance to clinical scientists, institutions, and funding agencies in conducting research on youth psychopathology with YWLE.
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Affiliation(s)
- Alexandra H. Bettis
- Vanderbilt University Medical Center, Department of Psychiatry & Behavioral Sciences, Nashville, TN
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10
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Hamilton JL, Dreier MJ, Boyd SI. Social media as a bridge and a window: The changing relationship of adolescents with social media and digital platforms. Curr Opin Psychol 2023; 52:101633. [PMID: 37454640 PMCID: PMC10526977 DOI: 10.1016/j.copsyc.2023.101633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/08/2023] [Accepted: 06/08/2023] [Indexed: 07/18/2023]
Abstract
Social media use became central to adolescents' lives and development during the COVID-19 pandemic, with some adolescents first initiating social media use in this period. The unique circumstances of the pandemic contributed to changing patterns of social media use among teens and popularity of features. The pandemic also facilitated use and engagement with social media to strengthen social connection, emerging identities, and access to information and resources. It also impacted teens' online experiences and exposure to broader societal problems on SM. Recent research, with a focus in the United States, is presented on how the pandemic has shaped adolescents' experiences with social media in meaningful ways across development. We argue that research on adolescent social media use needs to consider how the COVID-19 pandemic has shaped the use and influence of social media in adolescents today.
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Affiliation(s)
- Jessica L Hamilton
- Department of Psychology, Rutgers University, New Brunswick, United States.
| | - Melissa J Dreier
- Department of Psychology, Rutgers University, New Brunswick, United States
| | - Simone I Boyd
- Department of Psychology, Rutgers University, New Brunswick, United States
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11
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Scullett-Dean G, Hamilton JL, Repina O, Brand HEA, Burton ED, Saunders M, Santini TC. Uptake and incorporation of Al, Cr, V, Zn and Mo in hematite: Competition, synergies and influence on structural properties. J Hazard Mater 2023; 445:130630. [PMID: 37056025 DOI: 10.1016/j.jhazmat.2022.130630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 06/19/2023]
Abstract
This study investigated multiple (di-, tri- and tetra-)incorporation of selected minor and trace elements (Al3+, Cr3+, V3-5+, Zn2+, Mo6+ and As5+) into hematite. The purpose was to improve understanding of how hematite may control trace element mobility in the environment, and how physical and chemical properties of hematite are impacted by multi-element incorporation at x/Fe molar ratios of up to 10%. Simultaneous structural incorporation of Al±Cr±V±Zn into hematite was achieved, with both synergistic and antagonistic effects occurring between certain element combinations. Cr+Al had synergistic effects on their co-incorporation, while V negatively affected Al incorporation, and both V and Zn negatively affected Cr incorporation. In contrast, Mo was minimally associated with hematite, and As prevented hematite formation completely. X-ray diffraction indicated contraction and expansion of the hematite unit-cell upon substitution was related to the ionic radius of the substituting element in single-element samples, while V predominantly controlled the direction of deviation in multi-element samples. X-ray absorption near-edge structure spectroscopy indicated V was present as a mixture of V3+-V5+, with a higher average V oxidation state associated with multi-element samples. Results provide new insights into trace element geochemistry within hematite, and highlight the importance of multi-element studies to better understand natural and anthropogenic systems.
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Affiliation(s)
- G Scullett-Dean
- School of Agriculture and Environment, University of Western Australia, Crawley, WA 6009, Australia; School of Earth and Environmental Sciences, University of Queensland, St Lucia, QLD 4072, Australia.
| | - J L Hamilton
- School of Earth and Environmental Sciences, University of Queensland, St Lucia, QLD 4072, Australia; Australian Nuclear Science and Technology Organisation, 800 Blackburn Road, Clayton, VIC 3168, Australia
| | - O Repina
- School of Earth and Environmental Sciences, University of Queensland, St Lucia, QLD 4072, Australia; School of Earth, Atmospheric and Life Sciences, University of Wollongong, NSW 2522, Australia
| | - H E A Brand
- Australian Nuclear Science and Technology Organisation, 800 Blackburn Road, Clayton, VIC 3168, Australia
| | - E D Burton
- Faculty of Science and Engineering, Southern Cross University, Lismore, NSW 2480, Australia
| | - M Saunders
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia, Crawley, WA 6009, Australia
| | - T C Santini
- School of Agriculture and Environment, University of Western Australia, Crawley, WA 6009, Australia; School of Earth and Environmental Sciences, University of Queensland, St Lucia, QLD 4072, Australia
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12
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D’Angelo AM, Brand HEA, Mitchell VD, Hamilton JL, Oldfield D, Liu ACY, Gu Q. Total scattering measurements at the Australian Synchrotron Powder Diffraction beamline: capabilities and limitations. J Synchrotron Radiat 2023; 30:327-339. [PMID: 36891846 PMCID: PMC10000805 DOI: 10.1107/s1600577522011614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 12/02/2022] [Indexed: 06/18/2023]
Abstract
This study describes the capabilities and limitations of carrying out total scattering experiments on the Powder Diffraction (PD) beamline at the Australian Synchrotron, ANSTO. A maximum instrument momentum transfer of 19 Å-1 can be achieved if the data are collected at 21 keV. The results detail how the pair distribution function (PDF) is affected by Qmax, absorption and counting time duration at the PD beamline, and refined structural parameters exemplify how the PDF is affected by these parameters. There are considerations when performing total scattering experiments at the PD beamline, including (1) samples need to be stable during data collection, (2) highly absorbing samples with a μR > 1 always require dilution and (3) only correlation length differences >0.35 Å may be resolved. A case study comparing the PDF atom-atom correlation lengths with EXAFS-derived radial distances of Ni and Pt nanocrystals is also presented, which shows good agreement between the two techniques. The results here can be used as a guide for researchers considering total scattering experiments at the PD beamline or similarly setup beamlines.
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Affiliation(s)
- Anita M. D’Angelo
- Australian Synchrotron, Australian Nuclear Science and Technology Organisation (ANSTO), 800 Blackburn Road, Clayton, Victoria 3168, Australia
| | - Helen E. A. Brand
- Australian Synchrotron, Australian Nuclear Science and Technology Organisation (ANSTO), 800 Blackburn Road, Clayton, Victoria 3168, Australia
| | - Valerie D. Mitchell
- Australian Synchrotron, Australian Nuclear Science and Technology Organisation (ANSTO), 800 Blackburn Road, Clayton, Victoria 3168, Australia
| | - Jessica L. Hamilton
- Australian Synchrotron, Australian Nuclear Science and Technology Organisation (ANSTO), 800 Blackburn Road, Clayton, Victoria 3168, Australia
| | - Daniel Oldfield
- Australian Nuclear Science and Technology Organisation (ANSTO), New Illawarra Road, Lucas Heights, New South Wales 2234, Australia
| | - Amelia C. Y. Liu
- School of Physics and Astronomy, Monash University, Wellington Road, Clayton, Victoria 3800, Australia
| | - Qinfen Gu
- Australian Synchrotron, Australian Nuclear Science and Technology Organisation (ANSTO), 800 Blackburn Road, Clayton, Victoria 3168, Australia
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13
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Hamilton JL, Hutchinson E, Evankovich MR, Ladouceur CD, Silk JS. Daily and average associations of physical activity, social media use, and sleep among adolescent girls during the COVID-19 pandemic. J Sleep Res 2023; 32:e13611. [PMID: 35535484 PMCID: PMC9347531 DOI: 10.1111/jsr.13611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 03/31/2022] [Accepted: 04/01/2022] [Indexed: 02/03/2023]
Abstract
Adolescents' daily lives have been disrupted during the Coronavirus disease 2019 (COVID-19) pandemic. It remains unclear how changes in adolescents' daily physical and social behaviours affect their sleep. The present study examined the daily and average effects of physical activity and social media use (i.e., video chatting, texting, and social networking sites) on adolescent girls' sleep during the COVID-19 pandemic. Adolescent girls aged 12-17 years (N = 93; 69% White) from a larger longitudinal study completed a 10-day daily diary protocol during state-mandated stay-at-home orders. Girls reported on daily sleep (duration, timing, quality), physical activity, and social media use during COVID-19. Multilevel modelling was used to examine the within- and between-person effects of physical activity and social media on sleep duration, timing, and quality during the 10-day period. Between-person associations indicate that youth with greater social media use (texting, video chatting, and social networking) and less physical activity had later sleep timing across the 10-day study period. Only video chatting was associated with shorter sleep duration. There were no within-person effects of physical activity or social media activities on sleep outcomes. Findings indicate that physical activity and social media use may impact later adolescent sleep timing during the COVID-19 pandemic. It will be critical for research to examine the potential long-term costs of delayed sleep timing, and whether targeting specific youth behaviours associated with sleep and circadian disruption improve mental and physical health during the COVID-19 pandemic and beyond.
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Affiliation(s)
| | | | | | | | - Jennifer S. Silk
- Department of Psychology, University of Pittsburgh
- University of Pittsburgh School of Medicine
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14
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Hamilton JL, Tsypes A, Zelazny J, Sewall CJ, Rode N, Merranko J, Brent DA, Goldstein TR, Franzen PL. Sleep influences daily suicidal ideation through affective reactivity to interpersonal events among high-risk adolescents and young adults. J Child Psychol Psychiatry 2023; 64:27-38. [PMID: 35778912 PMCID: PMC9876533 DOI: 10.1111/jcpp.13651] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/22/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND Identifying proximal risk factors for suicidal ideation that are modifiable and relevant for adolescents and young adults is critical for suicide prevention. This study used an intensive monitoring approach to examine whether objectively- and subjectively- measured sleep characteristics predict next-day suicidal ideation occurrence and intensity through affective reactivity to interpersonal events in young people at high risk for suicide. METHODS Participants included 59 (13-23 years; 76% White; 75% female) adolescents and young adults undergoing intensive outpatient program treatment for depression and suicidality. Participants completed daily ratings of suicidal ideation, sleep quality, and affective reactivity to positive and negative interpersonal events for up to 3 months (M = 56 days, SD = 24.13). Actigraphy captured behavioral sleep duration and timing. Multilevel modeling was used to evaluate within-person fluctuations in sleep and affective reactivity as predictors of suicidal ideation, and multilevel mediation tested the indirect effects of sleep on suicidal ideation via affective reactivity to interpersonal events. RESULTS Results indicate significant indirect effects of objectively measured sleep duration and subjective sleep quality on next-day suicidal ideation via affective reactivity to negative and positive interpersonal events, respectively. Shorter-than-usual sleep predicted the presence and intensity of next-day suicidal ideation via heightened affective reactivity to negative interpersonal events. Worse sleep quality than usual predicted next-day suicidal ideation via reduced affective reactivity to positive interpersonal events. CONCLUSIONS Affectivity reactivity is a proximal mechanism through which sleep indices may influence risk for suicidal thinking on a daily basis. Findings highlight the utility of targeting sleep and emotion regulation in suicide prevention among adolescents and young adults at high-risk for suicide.
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Affiliation(s)
| | - Aliona Tsypes
- Department of PsychiatryUniversity of PittsburghPittsburghPAUSA
| | - Jamie Zelazny
- Department of NursingUniversity of PittsburghPittsburghPAUSA
| | | | - Noelle Rode
- Department of PsychiatryUniversity of PittsburghPittsburghPAUSA
| | - John Merranko
- Department of PsychiatryUniversity of PittsburghPittsburghPAUSA
| | - David A. Brent
- Department of PsychiatryUniversity of PittsburghPittsburghPAUSA
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15
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Rastegari M, Karimian N, Johnston SG, Doherty SJ, Hamilton JL, Choppala G, Hosseinpour Moghaddam M, Burton ED. Antimony(V) Incorporation into Schwertmannite: Critical Insights on Antimony Retention in Acidic Environments. Environ Sci Technol 2022; 56:17776-17784. [PMID: 36445713 DOI: 10.1021/acs.est.2c07341] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
This study examines incorporation of Sb(V) into schwertmannite─an Fe(III) oxyhydroxysulfate mineral that can be an important Sb host phase in acidic environments. Schwertmannite was synthesized from solutions containing a range of Sb(V)/Fe(III) ratios, and the resulting solids were investigated using geochemical analysis, powder X-ray diffraction (XRD), dissolution kinetic experiments, and extended X-ray absorption fine structure (EXAFS) spectroscopy. Shell-fitting and wavelet transform analyses of Sb K-edge EXAFS data, together with congruent Sb and Fe release during schwertmannite dissolution, indicate that schwertmannite incorporates Sb(V) via heterovalent substitution for Fe(III). Elemental analysis combined with XRD and Fe K-edge EXAFS spectroscopy shows that schwertmannite can incorporate Sb(V) via this mechanism at up to about 8 mol % substitution when formed from solutions having Sb/Fe ratios ≤0.04 (higher ratios inhibit schwertmannite formation). Incorporation of Sb(V) into schwertmannite involves formation of edge and double-corner sharing linkages between SbVO6 and FeIII(O,OH)6 octahedra which strongly stabilize schwertmannite against dissolution. This implies that Sb(V)-coprecipitated schwertmannite may represent a potential long-term sink for Sb in acidic environments.
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Affiliation(s)
- Mohammad Rastegari
- Faculty of Science and Engineering, Southern Cross University, Lismore, NSW 2480, Australia
| | - Niloofar Karimian
- School of Earth, Atmosphere & Environment, Monash University, Clayton, VIC 3800, Australia
- CSIRO Mineral Resources, Clayton South, VIC 3169, Australia
| | - Scott G Johnston
- Faculty of Science and Engineering, Southern Cross University, Lismore, NSW 2480, Australia
| | - Steven J Doherty
- Faculty of Science and Engineering, Southern Cross University, Lismore, NSW 2480, Australia
- School of Environmental and Rural Science, University of New England, Armidale, NSW 2350, Australia
| | | | - Girish Choppala
- Global Centre for Environmental Remediation (GCER), University of Newcastle, Callaghan, NSW 2308, Australia
| | | | - Edward D Burton
- Faculty of Science and Engineering, Southern Cross University, Lismore, NSW 2480, Australia
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16
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Burton ED, Karimian N, Hamilton JL, Frierdich AJ. Iron Isotopes in Acid Mine Drainage: Extreme and Divergent Fractionation between Solid (Schwertmannite, Jarosite, and Ferric Arsenate) and Aqueous Species. Environ Sci Technol 2022; 56:18060-18068. [PMID: 36442144 DOI: 10.1021/acs.est.2c05999] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Examination of stable Fe isotopes is a powerful tool to explore Fe cycling in a range of environments. However, the isotopic fractionation of Fe in acid mine drainage (AMD) has received little attention and is poorly understood. Here, we analyze Fe isotopes in waters and Fe(III)-rich solids along an AMD flow-path. Aqueous Fe spanned a concentration and δ56Fe range of ∼420 mg L-1 and + 0.04‰ at the AMD source to ∼100 mg L-1 and -0.81‰ at ∼450 m downstream. Aqueous As (up to ∼33 mg L-1) and SO42- (up to ∼2000 mg L-1), like aqueous Fe, decreased in concentration down the flow-path. X-ray absorption spectroscopy indicated that downstream attenuation in aqueous Fe, As, and SO42- was due to the precipitation of amorphous ferric arsenate (AFA), schwertmannite, and jarosite. The Fe(III) in these solids displayed extreme variability in δ56Fe, spanning +3.95‰ in AFA near the AMD source to -1.34‰ in schwertmannite at ∼450 m downstream. Similarly, the isotopic contrast between solid Fe(III) precipitates and aqueous Fe (Δ56Feppt-aq) dropped along the flow-path from about +4.1 to -1.1‰. The shift from positive to negative Δ56Feppt-aq reflects divergence between competing equilibrium versus kinetic fractionation processes.
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Affiliation(s)
- Edward D Burton
- Faculty of Science and Engineering, Southern Cross University, Lismore, NSW2480, Australia
| | - Niloofar Karimian
- School of Earth, Atmosphere & Environment, Monash University, Clayton, VIC3800, Australia
- CSIRO Mineral Resources, Clayton South, VIC3169, Australia
| | | | - Andrew J Frierdich
- School of Earth, Atmosphere & Environment, Monash University, Clayton, VIC3800, Australia
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17
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O'Garro-Moore JK, Hamilton JL. Future directions: A comment on the recommendations for the management of patients with mixed presentations. Bipolar Disord 2022; 24:760-761. [PMID: 36156335 DOI: 10.1111/bdi.13260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jared K O'Garro-Moore
- Department of Psychiatry, Columbia University Irving Medical Center, New York, New York, USA
| | - Jessica L Hamilton
- Department of Psychology, Rutgers University, New Brunswick, New Jersey, USA
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18
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Twenge JM, Hamilton JL. Linear correlation is insufficient as the sole measure of associations: The case of technology use and mental health. Acta Psychol (Amst) 2022; 229:103696. [PMID: 35964377 DOI: 10.1016/j.actpsy.2022.103696] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/27/2022] [Accepted: 08/01/2022] [Indexed: 11/30/2022] Open
Abstract
It is common for psychology studies to rely solely on linear correlation (r) or similar statistics and not include other measures of association (such as relative risk, which examines differences in the number of people affected). For example, the association between smoking and lung cancer (r = 0.06) could be dismissed as "small" if only linear r is examined, even though 30 times more smokers than non-smokers get lung cancer. Many studies concluding that associations between technology use and well-being as too small to be of practical importance relied solely on linear r. We show that, across five datasets, "small" correlations between technology use and mental health exist alongside practically important risk associations. As there are several valid types of association, and characterizing an association based on a single type of a measure - such as linear r or r2 - can be misleading.
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Affiliation(s)
- Jean M Twenge
- Department of Psychology, San Diego State University, United States of America.
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19
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Burke TA, Hamilton JL, Seigel D, Kautz M, Liu RT, Alloy LB, Barker DH. Sleep irregularity and nonsuicidal self-injurious urges and behaviors. Sleep 2022; 45:zsac084. [PMID: 35397476 PMCID: PMC9189944 DOI: 10.1093/sleep/zsac084] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/05/2022] [Indexed: 01/13/2023] Open
Abstract
STUDY OBJECTIVES The objectives of this study were to examine the relationships between sleep regularity and nonsuicidal self-injury (NSSI), including lifetime NSSI history and daily NSSI urges. METHODS Undergraduate students (N = 119; 18-26 years), approximately half of whom endorsed a lifetime history of repetitive NSSI, completed a 10-day actigraphy and ecological momentary assessment (EMA) protocol. A Sleep Regularity Index was calculated for all participants using scored epoch by epoch data to capture rapid changes in sleep schedules. Participants responded to EMA prompts assessing NSSI urge severity and negative affect three times daily over the 10-day assessment period. RESULTS Results indicate that individuals with a repetitive NSSI history were more likely to experience sleep irregularity than those without a history of NSSI. Findings also suggest that sleep irregularity was associated with more intense urges to engage in NSSI on a daily basis, even after accounting for average daily sleep duration, sleep timing, negative affect, and NSSI history. Neither sleep duration nor sleep timing was associated with NSSI history nor daily NSSI urge intensity. CONCLUSIONS Findings suggest that sleep irregularity is linked with NSSI, including NSSI history and intensity of urges to engage in NSSI. The present study not only supports the growing evidence linking sleep disturbance with the risk for self-injury but also demonstrates this relationship using actigraphy and real-time assessments of NSSI urge severity. Findings highlight the importance of delineating the nuances in sleep irregularity that are proximally associated with NSSI risk and identifying targets for intervention.
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Affiliation(s)
- Taylor A Burke
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | | | - David Seigel
- Graduate School of Applied and Professional Psychology, Rutgers University
Piscataway, NJ, USA
| | - Marin Kautz
- Department of Psychology and Neuroscience, Temple University, Philadelphia, PA, USA
| | - Richard T Liu
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Lauren B Alloy
- Department of Psychology and Neuroscience, Temple University, Philadelphia, PA, USA
| | - David H Barker
- Department of Psychiatry and Human Behavior, The Alpert Medical School of Brown University, Providence, RI, USA
- Department of Psychiatry, Rhode Island Hospital, Providence, RI, USA
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20
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Kellerman JK, Hamilton JL, Selby EA, Kleiman EM. The Mental Health Impact of Daily News Exposure During the COVID-19 Pandemic: Ecological Momentary Assessment Study. JMIR Ment Health 2022; 9:e36966. [PMID: 35377320 PMCID: PMC9135112 DOI: 10.2196/36966] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/31/2022] [Accepted: 03/31/2022] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Consumption of distressing news media, which substantially increased during the COVID-19 pandemic, has demonstrable negative effects on mental health. OBJECTIVE This study examines the proximal impact of daily exposure to news about COVID-19 on mental health in the first year of the pandemic. METHODS A sample of 546 college students completed daily ecological momentary assessments (EMAs) for 8 weeks, measuring exposure to news about COVID-19, worry and optimism specifically related to COVID-19, hopelessness, and general worry. RESULTS Participants completed >80,000 surveys. Multilevel mediation models indicated that greater daily exposure to news about COVID-19 is associated with higher same-day and next-day worry about the pandemic. Elevations in worry specifically about COVID-19 were in turn associated with greater next-day hopelessness and general worry. Optimism about COVID-19 mediated the relationship between daily exposure to COVID-19 news and next-day general worry but was not related to hopelessness. CONCLUSIONS This study demonstrates the mental health impact of daily exposure to COVID-19 news and highlights how worry about the pandemic contributes over time to hopelessness and general worry.
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Affiliation(s)
- John K Kellerman
- Department of Psychology, Rutgers, The State University of New Jersey, Piscataway, NJ, United States
| | - Jessica L Hamilton
- Department of Psychology, Rutgers, The State University of New Jersey, Piscataway, NJ, United States
| | - Edward A Selby
- Department of Psychology, Rutgers, The State University of New Jersey, Piscataway, NJ, United States
| | - Evan M Kleiman
- Department of Psychology, Rutgers, The State University of New Jersey, Piscataway, NJ, United States
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21
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Hamilton JL, Nesi J, Choukas-Bradley S. Reexamining Social Media and Socioemotional Well-Being Among Adolescents Through the Lens of the COVID-19 Pandemic: A Theoretical Review and Directions for Future Research. Perspect Psychol Sci 2022; 17:662-679. [PMID: 34756118 DOI: 10.31234/osf.io/5stx4] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Social media has rapidly transformed the ways in which adolescents socialize and interact with the world, which has contributed to ongoing public debate about whether social media is helping or harming adolescents. The COVID-19 pandemic has magnified both the challenges and opportunities of adolescents' social-media use, which necessitates revisiting the conversation around teens and social media. In this article, we discuss key aspects of adolescent social-media use and socioemotional well-being and outline how these issues may be amplified in the context of the COVID-19 pandemic. We use this as a springboard to outline key future research directions for the field, with the goal of moving away from reductionist approaches and toward a more nuanced perspective to understand the who, what, and when of social-media use and its impact on adolescent well-being. We conclude with a commentary on how psychological science can inform the translation of research to provide evidence-based recommendations for adolescent social-media use.
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Affiliation(s)
| | - Jacqueline Nesi
- Department of Psychiatry and Human Behavior, Brown University
- Bradley Hasbro Research Center, Rhode Island Hospital, Providence, Rhode Island
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22
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Wu JL, Hamilton JL, Fresco DM, Alloy LB, Stange JP. Decentering predicts attenuated perseverative thought and internalizing symptoms following stress exposure: A multi-level, multi-wave study. Behav Res Ther 2022; 152:104017. [PMID: 35316616 PMCID: PMC9007852 DOI: 10.1016/j.brat.2021.104017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 12/14/2021] [Accepted: 12/19/2021] [Indexed: 02/07/2023]
Abstract
While research identifies a growing list of risk factors for anxiety and depression, it is equally important to identify potential protective factors that may prevent or reduce vulnerability to developing internalizing psychopathology. We hypothesized that forms of perseverative thinking, such as rumination and worry, act as mechanisms linking negative life experiences and prospective symptoms of anxiety and depression. More specifically, we investigated whether decentering, the meta-cognitive capacity to adopt a distanced perspective toward one's thoughts and feelings, serves as a protective factor at various points along this mediational pathway. A sample of 181 undergraduate students were recruited and assessed at five time points over a 12-week period. Multilevel modeling indicated that decentering was associated with an attenuated impact of (1) negative events on prospective depressive symptoms; (2) negative events on prospective brooding, and (3) brooding, pondering and worry on prospective internalizing symptoms. Multilevel moderated mediation analyses provided partial support for the hypothesis that perseverative thinking would mediate the longitudinal associations between negative life events and internalizing symptoms, with decentering attenuating risk at several connections of the indirect pathways. The strongest support was provided for moderated mediation models in which decentering was associated with attenuated relationships between negative events, brooding, and symptoms of depression. This study is the first to elucidate the role of decentering as a protective factor against anxiety and depressive symptoms at different points in the path from stress to perseverative thought to internalizing symptoms. Decentering therefore may be a critical target for clinical intervention to promote resilience against anxiety and depression.
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23
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Tait AW, Wilson SA, Tomkins AG, Hamilton JL, Gagen EJ, Holman AI, Grice K, Preston LJ, Paterson DJ, Southam G. Preservation of Terrestrial Microorganisms and Organics Within Alteration Products of Chondritic Meteorites from the Nullarbor Plain, Australia. Astrobiology 2022; 22:399-415. [PMID: 35100042 DOI: 10.1089/ast.2020.2387] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Meteorites that fall to Earth quickly become contaminated with terrestrial microorganisms. These meteorites are out of chemical equilibrium in the environments where they fall, and equilibration promotes formation of low-temperature alteration minerals that can entomb contaminant microorganisms and thus preserve them as microfossils. Given the well-understood chemistry of meteorites and their recent discovery on Mars by rovers, a similarly weathered meteorite on Mars could preserve organic and fossil evidence of a putative past biosphere at the martian surface. Here, we used several techniques to assess the potential of alteration minerals to preserve microfossils and biogenic organics in terrestrially weathered ordinary chondrites from the Nullarbor Plain, Australia. We used acid etching of ordinary chondrites to reveal entombed fungal hyphae, modern biofilms, and diatoms within alteration minerals. We employed synchrotron X-ray fluorescence microscopy of alteration mineral veins to map the distribution of redox-sensitive elements of relevance to chemolithotrophic organisms, such as Mn-cycling bacteria. We assessed the biogenicity of fungal hyphae within alteration veins using a combination of Fourier-transform infrared spectroscopy and pyrolysis gas chromatography-mass spectrometry, which showed that alteration minerals sequester and preserve organic molecules at various levels of decomposition. Our combined analyses results show that fossil microorganisms and the organic molecules they produce are preserved within calcite-gypsum admixtures in meteorites. Furthermore, the distributions of redox-sensitive elements (e.g., Mn) within alteration minerals are localized, which qualitatively suggests that climatically or microbially facilitated element mobilization occurred during the meteorite's residency on Earth. If returned as part of a sample suite from the martian surface, ordinary chondrites could preserve similar, recognizable evidence of putative past life and/or environmental change.
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Affiliation(s)
- Alastair W Tait
- School of Earth, Atmosphere and Environment, Monash University, Melbourne, Victoria, Australia
| | - Siobhan A Wilson
- School of Earth, Atmosphere and Environment, Monash University, Melbourne, Victoria, Australia
- Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Andrew G Tomkins
- School of Earth, Atmosphere and Environment, Monash University, Melbourne, Victoria, Australia
| | - Jessica L Hamilton
- School of Earth, Atmosphere and Environment, Monash University, Melbourne, Victoria, Australia
- Australian Synchrotron, ANSTO, Clayton, Victoria, Australia
| | - Emma J Gagen
- School of Earth and Environmental Sciences, The University of Queensland, St. Lucia, Queensland, Australia
- Australian Centre for Ecogenomics, School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Queensland, Australia
| | - Alex I Holman
- Western Australian Organic and Isotope Geochemistry Centre, The Institute for Geoscience Research, School of Earth and Planetary Sciences, Curtin University, Perth, Western Australia, Australia
| | - Kliti Grice
- Western Australian Organic and Isotope Geochemistry Centre, The Institute for Geoscience Research, School of Earth and Planetary Sciences, Curtin University, Perth, Western Australia, Australia
| | - Louisa J Preston
- Department of Earth Sciences, Natural History Museum, London, United Kingdom
| | | | - Gordon Southam
- School of Earth and Environmental Sciences, The University of Queensland, St. Lucia, Queensland, Australia
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24
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Punt SE, Rhodes AC, Ilardi SS, Hamilton JL. Use of the Stanford Integrative Psychosocial Assessment for Transplant as a Pre-surgical Psychological Evaluation Tool for Bariatric Surgery. J Clin Psychol Med Settings 2022; 29:808-817. [DOI: 10.1007/s10880-022-09850-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2022] [Indexed: 11/30/2022]
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25
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Hamilton JL, Biernesser C, Moreno MA, Porta G, Hamilton E, Johnson K, Poling KD, Sakolsky D, Brent D, Goldstein T. Social media use and prospective suicidal thoughts and behaviors among adolescents at high risk for suicide. Suicide Life Threat Behav 2021; 51:1203-1212. [PMID: 34533227 PMCID: PMC8729160 DOI: 10.1111/sltb.12801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 05/19/2021] [Accepted: 08/17/2021] [Indexed: 01/21/2023]
Abstract
OBJECTIVE To examine the relationship between social media use and suicidal thoughts and behaviors among adolescents in the first 30 days of an intensive outpatient program (IOP) for depression and suicidality. METHOD Participants included 100 adolescents who enrolled in an IOP for depression and suicidality and completed baseline measures of social media and weekly measures of depression and suicidal thoughts and behaviors at clinical visits over the next month. RESULTS Lower levels of social media use (overall and messaging) were associated with a greater likelihood of having suicidal ideation with plan over the next 30 days. There was no effect on suicidal behavior. Multilevel modeling indicated no main effects of social media use on depression or average days of suicidal thoughts. However, individuals with lower levels of social media use maintained more depression symptoms and days with passive death wish across the first month of treatment. CONCLUSIONS Among adolescents at high risk for suicide, less engagement in social media may reflect social anhedonia or withdrawal, which may heighten risk for more severe suicidal ideation or impede initial treatment. Findings highlight the importance of considering social media as an additional context when assessing social dysfunction in treatment for depression and suicidality.
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Affiliation(s)
| | | | - Megan A. Moreno
- Department of Pediatrics, University of Wisconsin School of Medicine
| | - Giovanna Porta
- Department of Psychiatry, University of Pittsburgh Medical Center
| | - Edward Hamilton
- Department of Psychiatry, University of Pittsburgh Medical Center
| | - Kelsey Johnson
- Department of Psychiatry, University of Pittsburgh Medical Center
| | | | - Dara Sakolsky
- Department of Psychiatry, University of Pittsburgh Medical Center
| | - David Brent
- Department of Psychiatry, University of Pittsburgh Medical Center
| | - Tina Goldstein
- Department of Psychiatry, University of Pittsburgh Medical Center
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26
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Hamilton JL, Nesi J, Choukas-Bradley S. Reexamining Social Media and Socioemotional Well-Being Among Adolescents Through the Lens of the COVID-19 Pandemic: A Theoretical Review and Directions for Future Research. Perspect Psychol Sci 2021; 17:662-679. [PMID: 34756118 DOI: 10.1177/17456916211014189] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Social media has rapidly transformed the ways in which adolescents socialize and interact with the world, which has contributed to ongoing public debate about whether social media is helping or harming adolescents. The COVID-19 pandemic has magnified both the challenges and opportunities of adolescents' social-media use, which necessitates revisiting the conversation around teens and social media. In this article, we discuss key aspects of adolescent social-media use and socioemotional well-being and outline how these issues may be amplified in the context of the COVID-19 pandemic. We use this as a springboard to outline key future research directions for the field, with the goal of moving away from reductionist approaches and toward a more nuanced perspective to understand the who, what, and when of social-media use and its impact on adolescent well-being. We conclude with a commentary on how psychological science can inform the translation of research to provide evidence-based recommendations for adolescent social-media use.
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Affiliation(s)
| | - Jacqueline Nesi
- Department of Psychiatry and Human Behavior, Brown University.,Bradley Hasbro Research Center, Rhode Island Hospital, Providence, Rhode Island
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27
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Levenson JC, Thoma BC, Hamilton JL, Choukas-Bradley S, Salk RH. Sleep among gender minority adolescents. Sleep 2021; 44:5908811. [PMID: 32949142 DOI: 10.1093/sleep/zsaa185] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 07/17/2020] [Indexed: 12/28/2022] Open
Abstract
STUDY OBJECTIVES Stigmatized youth experience poorer sleep than those who have not experienced stigma. However, no studies have examined the sleep of gender minority adolescents (GMAs). Examining sleep disparities between GMAs and non-GMAs is critical because poor sleep is associated with mental health outcomes experienced disproportionately by GMAs. We examined sleep duration, sleep problems, and sleep quality among our sample and compared these parameters between GMAs and non-GMAs. METHODS Adolescents aged 14-18 years (n = 1,027 GMA, n = 329 heterosexual non-GMA, n = 415 sexual minority non-GMA; mean age = 16 years; 83% female sex at birth) completed a cross-sectional online survey, reporting sex assigned at birth and current gender identity, sleep duration, sleep problems (too much/too little sleep and inadequate sleep), sleep quality, and depressive symptoms. RESULTS Accounting for demographic covariates, GMAs were more likely to report inadequate sleep and shorter sleep duration and had higher odds of reporting poor sleep quality and getting too little/too much sleep than heterosexual non-GMAs. After also adjusting for depressive symptoms, the finding that GMAs more often reported poor sleep quality remained significant. CONCLUSIONS This first large, nationwide survey of sleep among GMAs suggests that GMAs may be more likely to have poor sleep than non-GMAs. The significance of our results was reduced when adjusting for depressive symptoms, suggesting that poorer sleep may occur in the context of depression for GMAs. Future work should include objective measures of sleep, examine the emergence of sleep disparities among GMAs and non-GMAs, and explore pathways that increase risk for poor sleep among GMAs.
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Affiliation(s)
- Jessica C Levenson
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA.,Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Brian C Thoma
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Jessica L Hamilton
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Sophia Choukas-Bradley
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA.,Department of Psychological and Brain Sciences, University of Delaware, Newark, DE
| | - Rachel H Salk
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA
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Hamilton JL, Do QB, Choukas-Bradley S, Ladouceur CD, Silk JS. Where it Hurts the Most: Peer Interactions on Social Media and in Person are Differentially Associated with Emotional Reactivity and Sustained Affect Among Adolescent Girls. Res Child Adolesc Psychopathol 2020; 49:155-167. [PMID: 33294963 DOI: 10.1007/s10802-020-00725-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2020] [Indexed: 12/22/2022]
Abstract
Social media (SM) use has increasingly changed how adolescents interact with their peers, yet it remains unclear how peer interactions on social media differ from in-person peer interactions. The current study evaluated whether the context (social media or in-person) of adolescent girls' worst and best peer interactions influenced their emotional responses to peer interactions and sustained affect in everyday life. In this study, a total of 110 adolescent girls (11-13 years old; mean age = 12.28 years) completed ecological momentary assessment (EMA) for 16 days following an initial baseline visit. Participants reported their worst (i.e., most negative) and best (i.e., most positive) interactions with peers since the last prompt, the context in which it occurred (social media or in-person), emotional reactivity during the interaction, and momentary affect. Multilevel models indicated that negative peer interactions that occurred on social media were more likely to be associated with sustained negative affect, but not negative emotional reactivity during the interaction. Positive interactions on social media were more likely to be associated with both lower positive emotional reactivity and lower sustained positive affect. Findings indicate that peer interactions on social media may differentially impact girls' emotional reactivity and sustained affect, particularly for positive interactions with peers. Findings highlight that social media and in-person peer interactions may impact how girls experience and respond to positive and negative peer interactions, which may have implications for peer relationships and onset of psychopathology during this vulnerable period.
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Affiliation(s)
| | - Quyen B Do
- Department of Psychology, University of Pittsburgh, 210 S. Bouquet Street, Pittsburgh, PA, USA
| | | | - Cecile D Ladouceur
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Psychology, University of Pittsburgh, 210 S. Bouquet Street, Pittsburgh, PA, USA
| | - Jennifer S Silk
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA. .,Department of Psychology, University of Pittsburgh, 210 S. Bouquet Street, Pittsburgh, PA, USA.
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Hamilton JL, Ladouceur CD, Silk JS, Franzen PL, Bylsma LM. Higher Rates of Sleep Disturbance Among Offspring of Parents With Recurrent Depression Compared to Offspring of Nondepressed Parents. J Pediatr Psychol 2020; 45:1-11. [PMID: 31633781 DOI: 10.1093/jpepsy/jsz079] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 09/14/2019] [Accepted: 09/17/2019] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE Youth who have a parent with recurrent depression are at high risk for mental health problems. There is a need to identify transdiagnostic and clinically actionable mechanisms that explain higher rates of psychopathology among high-risk youth. The present study sought to examine whether offspring of depressed parents exhibit greater parent- and self-reported sleep disturbance, shorter sleep duration, and later sleep midpoint compared to youth without any parental psychopathology. METHOD Participants included 82 youth, including 41 youth (ages 9-13; mean age = 11.07 years; 46% female) deemed to be at high-risk based on having a parent with a recurrent depression history, and 41 (mean age = 11.16 years; 49% female) at low-risk based on having parents without any history of psychopathology. Youth and their parents completed measures of youth sleep disturbance, and youth completed measures of sleep duration and midpoint using a daily sleep diary for 9 days. RESULTS Offspring of parents with depression exhibited more sleep disturbance (e.g., problematic nighttime behaviors and daytime sleepiness) than low-risk youth as reported by both parents and youth. For parent-reported sleep disturbance, there were also sex differences. High-risk girls had more sleep disturbance than high-risk boys or low-risk girls. There were no group differences for daily sleep duration and midpoint. CONCLUSION Sleep disturbance may be an important area for assessment among offspring of parents with depression. Our findings highlight one potential transdiagnostic risk factor that may emerge among high-risk youth, and sex-specific differences in sleep disturbance, which have implications for prevention and intervention.
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Affiliation(s)
| | - Cecile D Ladouceur
- Department of Psychiatry, University of Pittsburgh.,Department of Psychology, University of Pittsburgh
| | - Jennifer S Silk
- Department of Psychiatry, University of Pittsburgh.,Department of Psychology, University of Pittsburgh
| | | | - Lauren M Bylsma
- Department of Psychiatry, University of Pittsburgh.,Department of Psychology, University of Pittsburgh
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Burke TA, Ammerman BA, Hamilton JL, Stange JP, Piccirillo M. Nonsuicidal self-injury scar concealment from the self and others. J Psychiatr Res 2020; 130:313-320. [PMID: 32871456 DOI: 10.1016/j.jpsychires.2020.07.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/15/2020] [Accepted: 07/29/2020] [Indexed: 11/30/2022]
Abstract
Despite the high prevalence of nonsuicidal self-injury (NSSI) and resultant physical scarring, few studies have explored the occurrence and psychological implications of concealing NSSI scars. This study examines NSSI scar concealment from the self and others, as well as the cognitive, affective, and self-injury-related correlates of these concealment practices. This study aimed to characterize the extent to which individuals who engage in concealment practices have a history of, or desire to engage in, treatment for NSSI specifically geared towards NSSI scarring. Adults with at least one NSSI scar (N = 278) completed online questionnaires measuring NSSI engagement and scarring, scar concealment behaviors, scar-related cognitions, as well as symptoms of anxiety and depression, and recent suicidal ideation and NSSI urges. Results indicate that the degree of scar concealment from the self and from others is associated with greater experiences of negative scar-related cognitions, higher levels of anxiety and depressive symptomatology, and higher severity of NSSI urges. These correlations persisted after accounting for NSSI severity indices, including extent of NSSI scarring, suggesting that scar concealment practices may be important clinical indicators of current distress and potential future self-injury. Future research should explore the extent to which scar concealment practices are longitudinally associated with distress and risk for NSSI maintenance.
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Affiliation(s)
- Taylor A Burke
- Alpert Medical School of Brown University, Department of Psychiatry and Human Behavior, Providence, RI, USA.
| | - Brooke A Ammerman
- University of Notre Dame, Department of Psychology, Notre Dame, IN, USA
| | - Jessica L Hamilton
- Western Psychiatric Institute and Clinic, Department of Psychiatry, Pittsburgh, PA, USA
| | - Jonathan P Stange
- University of Illinois at Chicago, Department of Psychiatry, Chicago, IL, USA
| | - Marilyn Piccirillo
- Washington University in St. Louis, Department of Psychological and Brain Sciences, St. Louis, MO, USA
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31
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Liu RT, Steele SJ, Hamilton JL, Do QBP, Furbish K, Burke TA, Martinez AP, Gerlus N. Sleep and suicide: A systematic review and meta-analysis of longitudinal studies. Clin Psychol Rev 2020; 81:101895. [PMID: 32801085 PMCID: PMC7731893 DOI: 10.1016/j.cpr.2020.101895] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 07/06/2020] [Accepted: 08/05/2020] [Indexed: 12/13/2022]
Abstract
The current review provides a quantitative synthesis of the empirical literature on sleep disturbance as a risk factor for suicidal thoughts and behaviors (STBs). A systematic search of PsycINFO, MEDLINE, and the references of prior reviews resulted in 41 eligible studies included in this meta-analysis. Sleep disturbance, including insomnia, prospectively predicted STBs, yielding small-to-medium to medium effect sizes for these associations. Complicating interpretation of these findings however, is that few studies of suicidal ideation and suicide attempts, as well as none of suicide deaths, assessed short-term risk (i.e., employed follow-up assessments of under a month). Such studies are needed to evaluate current conceptualizations of sleep dysregulation as being involved in acute risk for suicidal behavior. This want of short-term risk studies also suggests that current clinical recommendations to monitor sleep as a potential warning sign of suicide risk has a relatively modest empirical basis, being largely driven by cross-sectional or retrospective research. The current review ends with recommendations for generating future research on short-term risk and greater differentiation between acute and chronic aspects of sleep disturbance, and by providing a model of how sleep disturbance may confer risk for STBs through neuroinflammatory and stress processes and associated impairments in executive control.
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Affiliation(s)
- Richard T Liu
- Massachusetts General Hospital, Boston, MA, United States of America; Department of Psychiatry, Harvard Medical School, Boston, MA, United States of America.
| | - Stephanie J Steele
- Department of Psychology, Williams College, Williamstown, MA, United States of America
| | - Jessica L Hamilton
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America
| | - Quyen B P Do
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Kayla Furbish
- Department of Psychology, Boston University, Boston, MA, United States of America
| | - Taylor A Burke
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, United States of America
| | - Ashley P Martinez
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, United States of America
| | - Nimesha Gerlus
- Duke University School of Medicine, Durham, NC, United States of America
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Hamilton JL, Chand S, Reinhardt L, Ladouceur CD, Silk JS, Moreno M, Franzen PL, Bylsma LM. Social media use predicts later sleep timing and greater sleep variability: An ecological momentary assessment study of youth at high and low familial risk for depression. J Adolesc 2020; 83:122-130. [PMID: 32771847 DOI: 10.1016/j.adolescence.2020.07.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 07/08/2020] [Accepted: 07/10/2020] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Social media (SM) use has been increasingly recognized as a potential contributor to poor sleep. Few studies have examined SM use and sleep using ecological momentary assessment (EMA), compared different types of media use (SM, television, gaming), or examined whether youth at high and low familial risk for depression are differentially affected by SM use. METHODS The current study included 76 youth (46% female; Mean age = 11.28 years) who were recruited based on parental history of recurrent depression (N = 35 high risk; N = 41 low risk) in the United States. Youth completed a 9-day EMA protocol, which included current activity at time of prompt and daily sleep onset and offset times. Regression and multilevel models were conducted to examine the effects of media use on sleep. RESULTS Results indicated that youth who used more SM (mean and number of days) went to sleep later, but did not have shorter sleep duration. Youth with more SM use also had higher levels of variability of both sleep timing and sleep duration across the 9-day period. There were no effects of gaming or TV on sleep, and youth at high risk for depression did not have differences in SM use or its effects on sleep compared to low-risk youth. CONCLUSIONS These findings indicate a unique impact of SM use on sleep timing and variability for youth (regardless of risk status), which may suggest a unique and modifiable pathway through which SM use contributes to poor health.
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Affiliation(s)
| | - Shannon Chand
- Department of Psychiatry, University of Pittsburgh, USA
| | | | - Cecile D Ladouceur
- Department of Psychiatry, University of Pittsburgh, USA; Department of Psychology, University of Pittsburgh, USA
| | - Jennifer S Silk
- Department of Psychiatry, University of Pittsburgh, USA; Department of Psychology, University of Pittsburgh, USA
| | - Megan Moreno
- Department of Pediatrics, University of Wisconsin School of Medicine, USA
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Levenson JC, Thoma BC, Hamilton JL, Choukas-Bradley S, Salk RH. 0358 Sleep Among Transgender and Cisgender Adolescents. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Sleep problems are germane to the majority of adolescents, but stigmatized youth may experience poorer sleep than those who have not experienced stigma. However, no prior studies have examined sleep among transgender adolescents (TGAs). Investigating these sleep disparities is critical, since low sleep duration and poor sleep quality are predictive of depressive symptoms and suicidality among adolescents, two mental health outcomes experienced disproportionately by TGAs. Using a nationwide survey of adolescents, we examined sleep duration, sleep quality, and rates of insufficient sleep among a sample of adolescents, and we compared those parameters between TGAs and cisgender adolescents (CGAs).
Methods
Adolescents (n=1784) ages 14-18 completed an anonymous survey including measures of sleep, sexual and gender identity, depressive symptoms, and demographic variables. Participants were grouped as TGA or CGA. Unadjusted associations between gender identity and sleep outcomes were examined, followed by multivariate regression models examining associations adjusted for demographics and depressive symptoms.
Results
TGAs reported sleeping fewer hours, higher odds of being a ‘poor sleeper’, and lower odds of getting the right amount of sleep and getting ‘enough sleep’ than CGAs. After adjusting for key demographic variables, TGAs were still more likely to report that they were poor sleepers and less likely to report getting enough sleep compared to CGAs. When adding depressive symptoms as a covariate, the finding that TGAs reported they got enough sleep less often than CGAs remained marginally significant.
Conclusion
Transgender adolescents reported receiving poorer sleep than cisgender adolescents. Future studies should focus on longitudinally examining the emergence of sleep problems among TGAs and CGAs, which may also serve to identify specific biopsychosocial pathways that contribute to heightened risk for sleep problems among TGAs. Sleep disparities may be a promising target for prevention and intervention programs to improve health outcomes among stigmatized youth.
Support
This study was funded by the University of Pittsburgh Central Research Development Fund through an award to Drs. Salk, Choukas-Bradley, and Thoma. Dr. Levenson was supported by grant K23HD087433. Dr. Thoma was supported by grants T32MH018951 and K01MH117142, Dr. Salk was supported by grant T32MH018269, and Dr. Hamilton was supported by grant T32HL082610.
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Affiliation(s)
- J C Levenson
- University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - B C Thoma
- University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - J L Hamilton
- University of Pittsburgh School of Medicine, Pittsburgh, PA
| | | | - R H Salk
- University of Pittsburgh School of Medicine, Pittsburgh, PA
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Hamilton JL, Goldstein TR, Sewall C, Zelazny J, Rode N, Gibbons B, Franzen PL. 1000 Social Media Use And Actigraphic Measures Of Sleep Timing Among High-risk Adolescents. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Social media use is a risk factor for poor sleep among adolescents. It remains unclear whether social media use before bed impacts later sleep timing or whether youth turn to social media because of sleep problems, which impacts sleep timing. No study to date has examined this relationship using prospective designs and objective sleep measures among high-risk adolescents, who may be particularly vulnerable to social media use.
Methods
As a preliminary test of this relationship, 25 adolescents and young adults in an intensive outpatient program for depression and suicidality completed baseline measures of social media use and wore actiwatches for up to three months. Social media use included: 1) minutes of use within 2 hours of going to sleep, and 2) frequency of social media use due to difficulty falling or staying asleep. To examine social media as a predictor of sleep timing over the next month, actigraphic measures of sleep timing (i.e., onset) were used in the first month after baseline.
Results
Multilevel modeling indicated that higher levels of social media use in the 2 hours before bed (mean = 46.94 minutes) predicted later sleep timing (B = .02; SE = .01; p= .003). Similarly, higher frequency of social media use due to perceived sleep problems predicted later sleep timing (B = .22; SE = .11; p= .04). Models covaried for age, gender, and prior-day depressed mood. When simultaneously entered, only minutes of social media use in the 2 hours before bed significantly predicted later sleep timing.
Conclusion
Findings suggest that the relationship between social media use and sleep timing among adolescents with depression and suicidality may be driven by both social media use before bed and media use due to sleep problems. Research assessing objective social media use and daily relationships are needed to further disentangle this relationship.
Support
Jessica L Hamilton is supported by a T32 fellowship from NHLBI (HL082610; PI: Buysse). This research is supported by grants from the American Foundation for Suicide Prevention and University of Pittsburgh Clinical and Translational Science Institute.
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Affiliation(s)
| | | | - C Sewall
- Social Work, University of Pittsburgh, PA
| | - J Zelazny
- Nursing, University of Pittsburgh, PA
| | - N Rode
- Psychiatry, University of Pittsburgh, PA
| | - B Gibbons
- Psychiatry, University of Pittsburgh, PA
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Franzen PL, Merranko J, Zelazny JH, Hamilton JL, Sewell C, Goldstein TR. 0976 Temporal Associations Between Sleep And Suicidality In Ultra-high Risk Adolescents And College Students During An Intensive Longitudinal Study. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Studies consistently demonstrate a link between subjective sleep disturbances and the continuum of suicidality, although this evidence primarily comes from retrospective, cross-sectional studies using limited items to assess sleep. Longitudinal assessment of well-defined and measured sleep/wake behaviors with high-risk individuals are needed to enhance the specificity of near-term suicide risk detection and render concrete targets for suicide prevention.
Methods
Participants (N=46) included ultra-high-risk adolescents (N=29 ages 12-18) and college students (N=17 ages 18-24). For up to 12 weeks, participants wore an actigraph to yield objective data on sleep/wake, and concurrently completed daily cellphone-based ratings of subjective sleep and suicidality. Generalized estimating equations were used to examine the association between sleep parameters (subjective and objective) and the odds of next-day suicidal outcomes (i.e., passive death wish [PDW], suicidal ideation, suicidal intent) controlling for age, gender, and depression severity.
Results
Significant quadratic relationships were observed between actigraphy-derived total sleep time (TST) and probability of next-day PDW (Z=3.7, p=0.0002), suicidal ideation (Z=2.1, p=0.04), and suicidal intent (Z=2.78, p=0.006), with increasing suicidality at low and high values of TST. Low sleep efficiency (<75%) was associated with increased odds of next-day PDW (OR=1.24, Z=2.07, p=0.038). Subjectively (sleep diary measures), low sleep quality (<50 on 100-point scale) was associated with increased odds of next-day suicidal ideation (OR=1.57, Z=3.42, p<0.001), and longer sleep onset latency (>20 minutes) with next-day suicidal intent (OR=3.00, Z=2.37, p=0.018).
Conclusion
Poor sleep health may signal increasing suicide risk, and are modifiable risk factors. We document a significant temporal association whereby objectively-derived short and long TST and low sleep efficiency, as well as subjective sleep quality and sleep onset latency, predicts next day’s suicidality. Further understanding of the temporal association between sleep and suicidality may hold promise to inform real-time monitoring and preventive strategies. Interventions targeting these factors may therefore help reduce suicidality in high-risk youth.
Support
American Foundation for Suicide Prevention; University of Pittsburgh Clinical and Translational Science Institute
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Affiliation(s)
- P L Franzen
- University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - J Merranko
- University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - J H Zelazny
- University of Pittsburgh School of Nursing, Pittsburgh, PA
| | - J L Hamilton
- University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - C Sewell
- University of Pittsburgh School of Social Work, Pittsburgh, PA
| | - T R Goldstein
- University of Pittsburgh School of Medicine, Pittsburgh, PA
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Eways KR, Bennett KK, Hamilton JL, Harry KM, Marszalek J, Marsh MJO, Wilson EJ. Development and Psychometric Properties of the Self-Blame Attributions for Cancer Scale. Oncol Nurs Forum 2020; 47:79-88. [PMID: 31845915 DOI: 10.1188/20.onf.79-88] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVES To adapt the Cardiac Self-Blame Attributions Scale into the Self-Blame Attributions for Cancer Scale (SBAC) for use in patients with cancer and analyze its psychometric properties. SAMPLE & SETTING 113 patients receiving radiation therapy at the University of Kansas Cancer Center. METHODS & VARIABLES The SBAC and other self-report measures were administered during outpatient oncology appointments for radiation therapy to establish the psychometric properties of the SBAC. RESULTS A two-factor structure represented behavioral and characterological self-blame attributions. Reliability estimates for each factor were excellent and evidence of convergent and discriminant validity was found, indicating support for the SBAC as a valid and reliable measure of self-blame attributions in patients with cancer. IMPLICATIONS FOR NURSING The SBAC may help healthcare providers, including nursing staff, to identify the self-blame patterns exhibited by patients with cancer. Future research can assess the reliability and validity of SBAC across stages of treatment and establish the predictive validity of the scale in individuals with cancer.
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Affiliation(s)
- Jessica L Hamilton
- Department of Psychiatry (Hamilton, Buysse) and Clinical and Translational Science Institute (Buysse), University of Pittsburgh School of Medicine, Pittsburgh
| | - Daniel J Buysse
- Department of Psychiatry (Hamilton, Buysse) and Clinical and Translational Science Institute (Buysse), University of Pittsburgh School of Medicine, Pittsburgh
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Hamilton JL, Stange JP, Burke TA, Franzen PL, Alloy LB. Sleep disturbance and physiological regulation among young adults with prior depression. J Psychiatr Res 2019; 115:75-81. [PMID: 31121395 PMCID: PMC6582965 DOI: 10.1016/j.jpsychires.2019.05.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 05/10/2019] [Accepted: 05/15/2019] [Indexed: 12/13/2022]
Abstract
Sleep disturbance and respiratory sinus arrhythmia (RSA) are well-known to be independently associated with depression. Yet, it remains unclear how sleep disturbance and impaired physiological regulation (indexed by RSA) may synergistically contribute to depression risk. The current study examined the relationship between sleep disturbance (duration, insomnia) on daily depressive symptoms, and whether RSA moderated this relationship in a sample of young adults with a history of depression. To examine hypotheses, participants (N = 102, ages 18-22) completed a laboratory socio-evaluative stressor task to assess RSA at rest and reactivity. Participants then completed daily measures of sleep duration, insomnia symptoms, and depressive symptoms for two weeks. For main effects, multilevel modeling indicated that shorter overall sleep duration (but not insomnia) predicted higher depressive symptoms, and individual fluctuations in insomnia symptoms (but not sleep duration) predicted higher levels of next-day depressive symptoms. Lower resting RSA, but not reactivity, potentiated these relationships. Individual differences in sleep disturbance (duration and insomnia) predicted prospective levels of depressive symptoms among individuals with lower physiological regulation (indexed by lower RSA), who were particularly vulnerable to the daily effects of sleep disturbance on depressed mood. These results suggest the need to examine both daily sleep disturbance and physiological regulation to understand who may be at greatest risk for depression.
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Affiliation(s)
| | - Jonathan P Stange
- University of Chicago at Illinois, Department of Psychiatry, United States
| | - Taylor A Burke
- (c)Temple University, Department of Psychology, United States
| | - Peter L Franzen
- University of Pittsburgh, Department of Psychiatry, United States
| | - Lauren B Alloy
- (c)Temple University, Department of Psychology, United States
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Liu RT, McArthur BA, Burke TA, Hamilton JL, Mac Giollabhui N, Stange JP, Hamlat EJ, Abramson LY, Alloy LB. A Latent Structure Analysis of Cognitive Vulnerability to Depression in Adolescence. Behav Ther 2019; 50:755-764. [PMID: 31208685 PMCID: PMC6582994 DOI: 10.1016/j.beth.2018.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 11/25/2018] [Accepted: 11/27/2018] [Indexed: 01/28/2023]
Abstract
Whether cognitive vulnerability to depression exists along a continuum of severity or as a qualitatively discrete phenomenological entity has direct bearing on theoretical formulations of risk for depression and clinical risk assessment. This question is of particular relevance to adolescence, given that cognitive vulnerability appears to coalesce and rates of depression begin to rise markedly during this period of development. Although a dimensional view is often assumed, it is necessary to submit this assumption to direct empirical evaluation. Taxometric analysis is a family of statistical techniques developed directly to test such assumptions. The present study applied taxometric methods to address this question in a community sample of early adolescents (n = 485), drawing on three indices of cognitive vulnerability to depression (i.e., negative inferential style, ruminative response style, self-referent information processing). The results of three taxometric analyses (i.e., mean above minus below a cut [MAMBAC], maximum eigenvalue [MAXEIG], and latent mode [L-Mode]) were consistent in unambiguously supporting a dimensional conceptualization of this construct. The latent structure of the tested indices of cognitive vulnerability to depression in adolescence appears to exist along a continuum of severity rather than as a discrete clinical entity.
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Hamilton JL, Eways KR, Fohn S, Dunn W. Multicultural Awareness and a Comprehensive Team Approach to Liver Transplantation: A Case Report. J Clin Psychol Med Settings 2019; 26:282-290. [PMID: 31201654 DOI: 10.1007/s10880-019-09638-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Patients being considered for a liver transplant undergo a rigorous evaluation process to identify the medical and psychosocial factors that may impact transplant success. The American Association for the Study of Liver Disease outlines recommendations for medical factors, but guidelines for psychosocial factors, such as multiculturalism, are less clear. The aim of this unique case study was to highlight the importance of multicultural awareness in the context of liver transplantation. More specifically, the report follows an American Indian man from initial diagnosis through psychological assessment and transplantation in order to illustrate the benefits of a comprehensive, multicultural team approach. Various components of multiculturalism are discussed, including the patient's ethnicity, intellectual functioning, socioeconomic status, and mental health history. Consideration of these factors by the patient's treatment team ultimately led to the patient's candidacy for transplant, as well as effective psychosocial support throughout the transplant process and recovery. Incorporation more specific psychosocial recommendations into national liver transplantation guidelines would likely improve the evaluation process and outcomes.
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Affiliation(s)
- Jessica L Hamilton
- Department of Psychiatry and Internal Medicine, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA.
| | - Kalon R Eways
- Department of Psychology, University of Missouri-Kansas City, Kansas City, MO, USA
| | - Sara Fohn
- Department of Psychiatry and Internal Medicine, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA
| | - Winston Dunn
- Department of Psychiatry and Internal Medicine, University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS, 66160, USA
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Hamilton JL, Silk JS, Ladouceur CD, Franzen PL, Bylsma LM. 0804 Sleep Disturbance in Youth at High and Low Risk for Depression. Sleep 2019. [DOI: 10.1093/sleep/zsz067.802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Siegel DM, Burke TA, Hamilton JL, Piccirillo ML, Scharff A, Alloy LB. Social anxiety and interpersonal stress generation: the moderating role of interpersonal distress. Anxiety Stress Coping 2018; 31:526-538. [PMID: 29855206 DOI: 10.1080/10615806.2018.1482723] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
BACKGROUND AND OBJECTIVES Existing models of social anxiety scarcely account for interpersonal stress generation. These models also seldom include interpersonal factors that compound the effects of social anxiety. Given recent findings that two forms of interpersonal distress, perceived burdensomeness and thwarted belongingness, intensify social anxiety and cause interpersonal stress generation, these two constructs may be especially relevant to examining social anxiety and interpersonal stress generation together. DESIGN The current study extended prior research by examining the role of social anxiety in the occurrence of negative and positive interpersonal events and evaluated whether interpersonal distress moderated these associations. METHODS Undergraduate students (N = 243; M = 20.46 years; 83% female) completed self-report measures of social anxiety, perceived burdensomeness, and thwarted belongingness, as well as a self-report measure and clinician-rated interview assessing negative and positive interpersonal events that occurred over the past six weeks. RESULTS Higher levels of social anxiety were associated only with a higher occurrence of negative interpersonal dependent events, after controlling for depressive symptoms. This relationship was stronger among individuals who also reported higher levels of perceived burdensomeness, but not thwarted belongingness. CONCLUSIONS It may be important to more strongly consider interpersonal stress generation in models of social anxiety.
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Affiliation(s)
- David M Siegel
- a Department of Psychology , Temple University , Philadelphia , PA , USA
| | - Taylor A Burke
- a Department of Psychology , Temple University , Philadelphia , PA , USA
| | - Jessica L Hamilton
- a Department of Psychology , Temple University , Philadelphia , PA , USA
| | | | - Adela Scharff
- a Department of Psychology , Temple University , Philadelphia , PA , USA
| | - Lauren B Alloy
- a Department of Psychology , Temple University , Philadelphia , PA , USA
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Schwartz LA, Hamilton JL, Brumley LD, Barakat LP, Deatrick JA, Szalda DE, Bevans KB, Tucker CA, Daniel LC, Butler E, Kazak AE, Hobbie WL, Ginsberg JP, Psihogios AM, Ver Hoeve E, Tuchman LK. Development and Content Validation of the Transition Readiness Inventory Item Pool for Adolescent and Young Adult Survivors of Childhood Cancer. J Pediatr Psychol 2018; 42:983-994. [PMID: 29046041 DOI: 10.1093/jpepsy/jsx095] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Accepted: 06/05/2017] [Indexed: 11/12/2022] Open
Abstract
Objective The development of the Transition Readiness Inventory (TRI) item pool for adolescent and young adult childhood cancer survivors is described, aiming to both advance transition research and provide an example of the application of NIH Patient Reported Outcomes Information System methods. Methods Using rigorous measurement development methods including mixed methods, patient and parent versions of the TRI item pool were created based on the Social-ecological Model of Adolescent and young adult Readiness for Transition (SMART). Results Each stage informed development and refinement of the item pool. Content validity ratings and cognitive interviews resulted in 81 content valid items for the patient version and 85 items for the parent version. Conclusions TRI represents the first multi-informant, rigorously developed transition readiness item pool that comprehensively measures the social-ecological components of transition readiness. Discussion includes clinical implications, the application of TRI and the methods to develop the item pool to other populations, and next steps for further validation and refinement.
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Affiliation(s)
- Lisa A Schwartz
- The Children's Hospital of Philadelphia.,University of Pennsylvania
| | | | | | - Lamia P Barakat
- The Children's Hospital of Philadelphia.,University of Pennsylvania
| | | | - Dava E Szalda
- The Children's Hospital of Philadelphia.,University of Pennsylvania
| | | | | | | | | | - Anne E Kazak
- Nemours Children's Health System.,Thomas Jefferson University
| | | | - Jill P Ginsberg
- The Children's Hospital of Philadelphia.,University of Pennsylvania
| | | | | | - Lisa K Tuchman
- Children's National Medical Center and George Washington University
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Hamilton JL, Buysse DJ, Franzen PL. 0269 Gender Differences Moderate The Effects Of Sleep Restriction On Cardiovascular And Neuroendocrine Responses To Socio-evaluative Stress During Adolescence. Sleep 2018. [DOI: 10.1093/sleep/zsy061.268] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - D J Buysse
- University of Pittsburgh, Pittsburgh, PA
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45
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Schmitt V, Rodríguez-Rodríguez C, Hamilton JL, Shenoi RA, Schaffer P, Sossi V, Kizhakkedathu JN, Saatchi K, Häfeli UO. Quantitative SPECT imaging and biodistribution point to molecular weight independent tumor uptake for some long-circulating polymer nanocarriers. RSC Adv 2018; 8:5586-5595. [PMID: 35542449 PMCID: PMC9078196 DOI: 10.1039/c7ra09183d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Accepted: 01/20/2018] [Indexed: 11/21/2022] Open
Abstract
Polymeric nanocarriers are promising entities for cancer diagnosis and therapy. The aim of such nanocarriers is to selectively accumulate in cancerous tissue that is difficult to visualize or treat. The passive accumulation of a nanocarrier in a tumor through extravasation is often attributed to the enhanced permeation and retention (EPR) effect and the size and shape of the nanocarrier. However, the tumor microenvironment is very heterogeneous and the intratumoral pressure is usually high, leading to different opinions about how the EPR of nanocarriers through the irregular vasculature of a tumor leads to accumulation. In order to investigate this topic, we studied methods for the determination of pharmacokinetic parameters, biodistribution and the tumor uptake of nanocarriers. More specifically, we used non-invasive quantitative Single-Photon Emission Computed Tomography/Computed Tomography (qSPECT/CT) imaging of hyperbranched polyglycerols (HPGs) to explore the specific biodistribution and tumor uptake of six model nanocarriers in Rag2m mice. We were interested to see if a distinct molecular weight (MW) of nanocarriers (HPG 25, 50, 100, 200, 300, 500 kDa) is favoured by the tumor. To trace the model nanocarriers, HPGs were covalently linked to the strong chelator desferrioxamine (DFO), and radiolabeled with the gamma emitter 67Ga (EC = 100%, E γ = 185 keV (21.4%), 300 keV (16.6%), half-life = 3.26 d). Without the need for blood collection, but instead using qSPECT/CT imaging inside the heart, the blood circulation half-lives of the 67Ga labeled HPGs were determined and increased from 9.9 ± 2.9 to 47.8 ± 7.9 hours with increasing polymer MW. Total tumor accumulation correlated positively with the circulation time of the HPGs. Comparing the tumor-to-blood ratio dynamically revealed how blood and tumor concentrations of the nanocarrier change over time and when equilibrium is reached. The time of equilibrium is size-dependent and increases with molecular weight. Furthermore, the data indicate that for larger MWs, nanocarrier uptake and retention by the tumor is size independent. Further studies are necessary to advance our understanding of the interplay between MW and nanoparticle accumulation in tumors.
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Affiliation(s)
- V Schmitt
- The University of British Columbia, Faculty of Pharmaceutical Sciences 2405 Wesbrook Mall Vancouver BC V6T1Z3 Canada
| | - C Rodríguez-Rodríguez
- The University of British Columbia, Faculty of Pharmaceutical Sciences 2405 Wesbrook Mall Vancouver BC V6T1Z3 Canada
- Department of Physics & Astronomy, The University of British Columbia Vancouver BC Canada
- Centre for Comparative Medicine, The University of British Columbia Vancouver BC Canada
| | - J L Hamilton
- Centre for Blood Research, Department of Pathology and Laboratory Medicine, The University of British Columbia Vancouver BC Canada
| | - R A Shenoi
- Centre for Blood Research, Department of Pathology and Laboratory Medicine, The University of British Columbia Vancouver BC Canada
| | - P Schaffer
- TRIUMF 4004 Wesbrook Mall Vancouver BC Canada
| | - V Sossi
- Department of Physics & Astronomy, The University of British Columbia Vancouver BC Canada
| | - J N Kizhakkedathu
- Centre for Blood Research, Department of Pathology and Laboratory Medicine, The University of British Columbia Vancouver BC Canada
- Department of Chemistry, The University of British Columbia Vancouver BC Canada
| | - K Saatchi
- The University of British Columbia, Faculty of Pharmaceutical Sciences 2405 Wesbrook Mall Vancouver BC V6T1Z3 Canada
| | - U O Häfeli
- The University of British Columbia, Faculty of Pharmaceutical Sciences 2405 Wesbrook Mall Vancouver BC V6T1Z3 Canada
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46
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Hamilton JL, Brindle RC, Alloy LB, Liu RT. Childhood Trauma and Sleep Among Young Adults With a History of Depression: A Daily Diary Study. Front Psychiatry 2018; 9:673. [PMID: 30564159 PMCID: PMC6288170 DOI: 10.3389/fpsyt.2018.00673] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 11/21/2018] [Indexed: 01/05/2023] Open
Abstract
Child maltreatment and sleep disturbances are particularly prevalent among individuals with a history of depression. However, the precise relation between child maltreatment and sleep within this population is unclear. The present study evaluated childhood maltreatment and trauma as a predictor of sleep duration and insomnia symptoms among young adults with prior depression. A total of 102 young adults (18-22; 78% female) with a history of clinical or subclinical depression completed an in-person visit with diagnostic interviews and questionnaires of childhood trauma (maltreatment and general trauma), and 2 weeks of daily assessments of sleep and depressive symptoms using internet-capable devices. Using multilevel modeling, we found that only childhood emotional neglect significantly predicted higher levels of insomnia symptoms over the 2 weeks, controlling for daily depression. Neither childhood maltreatment nor trauma predicted sleep duration. Our findings highlight a unique relationship between emotional neglect and insomnia symptoms among individuals with a depression history that, given prior research, may potentially play a role in depression recurrence and represent a potential treatment target.
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Affiliation(s)
- Jessica L Hamilton
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, United States
| | - Ryan C Brindle
- Department of Psychology and Neuroscience Program, Washington and Lee University, Lexington, VA, United States
| | - Lauren B Alloy
- Department of Psychology, Temple University, Philadelphia, PA, United States
| | - Richard T Liu
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, United States
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Hamilton JL, Foxcroft S, Moyo E, Cooke-Lauder J, Spence T, Zahedi P, Bezjak A, Jaffray D, Lam C, Létourneau D, Milosevic M, Tsang R, Wong R, Liu FF. Strategic planning in an academic radiation medicine program. Curr Oncol 2017; 24:e518-e523. [PMID: 29270061 DOI: 10.3747/co.24.3725] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background In this paper, we report on the process of strategic planning in the Radiation Medicine Program (rmp) at the Princess Margaret Cancer Centre. The rmp conducted a strategic planning exercise to ensure that program priorities reflect the current health care environment, enable nimble responses to the increasing burden of cancer, and guide program operations until 2020. Methods Data collection was guided by a project charter that outlined the project goal and the roles and responsibilities of all participants. The process was managed by a multidisciplinary steering committee under the guidance of an external consultant and consisted of reviewing strategic planning documents from close collaborators and institutional partners, conducting interviews with key stakeholders, deploying a program-wide survey, facilitating an anonymous and confidential e-mail feedback box, and collecting information from group deliberations. Results The process of strategic planning took place from December 2014 to December 2015. Mission and vision statements were developed, and core values were defined. A final document, Strategic Roadmap to 2020, was established to guide programmatic pursuits during the ensuing 5 years, and an implementation plan was developed to guide the first year of operations. Conclusions The strategic planning process provided an opportunity to mobilize staff talents and identify environmental opportunities, and helped to enable more effective use of resources in a rapidly changing health care environment. The process was valuable in allowing staff to consider and discuss the future, and in identifying strategic issues of the greatest importance to the program. Academic programs with similar mandates might find our report useful in guiding similar processes in their own organizations.
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Affiliation(s)
- J L Hamilton
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network
| | - S Foxcroft
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network
| | - E Moyo
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network
| | - J Cooke-Lauder
- Health Industry Management Practice, Schulich School of Business, York University, and
| | - T Spence
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network
| | - P Zahedi
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network
| | - A Bezjak
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network
| | - D Jaffray
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network.,Department of Radiation Oncology, University of Toronto, Toronto, ON
| | - C Lam
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network.,Department of Radiation Oncology, University of Toronto, Toronto, ON
| | - D Létourneau
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network.,Department of Radiation Oncology, University of Toronto, Toronto, ON
| | - M Milosevic
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network.,Department of Radiation Oncology, University of Toronto, Toronto, ON
| | - R Tsang
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network.,Department of Radiation Oncology, University of Toronto, Toronto, ON
| | - R Wong
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network.,Department of Radiation Oncology, University of Toronto, Toronto, ON
| | - F F Liu
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network.,Department of Radiation Oncology, University of Toronto, Toronto, ON
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Mac Giollabhui N, Hamilton JL, Nielsen J, Connolly SL, Stange JP, Varga S, Burdette E, Olino TM, Abramson LY, Alloy LB. Negative cognitive style interacts with negative life events to predict first onset of a major depressive episode in adolescence via hopelessness. J Abnorm Psychol 2017; 127:1-11. [PMID: 29172599 DOI: 10.1037/abn0000301] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The hopelessness theory of depression is a prominent account of depression that posits that individuals with a negative inferential style are more likely to become hopeless when they experience negative life events (NLEs) and that hopelessness is a proximal cause of depression. There is strong evidence supporting the role of a negative inferential style in the pathogenesis of major depression; however, substantially less is known about the proposed role played by hopelessness. The cornerstone hypothesis of hopelessness theory, that hopelessness is a proximal cause of major depression, is largely untested. A small number of studies have generated inconclusive evidence that hopelessness mediates the relationship between a negative inferential style, NLEs, and depressive symptoms. The current study tested whether hopelessness mediates the relationship between a Negative Inferential Style × NLEs interaction and (a) 1st onset of a major depressive episode (MDE) and (b) depressive symptoms in a fully prospective design. A diverse sample of 249 adolescents, ages 12-13 years, were assessed at baseline and at 2 or more follow-ups over approximately 2.5 years. Self-report as well as life event and diagnostic interviews assessed inferential style, NLEs, hopelessness, depressive symptoms, and depression diagnosis. Moderated mediation analyses indicated that hopelessness mediated the relationship between a Negative Inferential Style × NLEs interaction and (a) 1st onset of an MDE as well as (b) depressive symptoms at higher levels of multiple types of NLEs. The current study demonstrates the validity of the hopelessness theory of depression and its continued clinical relevance in predicting depression in adolescence. (PsycINFO Database Record
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Affiliation(s)
| | | | | | | | | | - Sean Varga
- Department of Psychology, Temple University
| | | | | | - Lyn Y Abramson
- Department of Psychology, University of Wisconsin- Madison
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Abstract
Abnormalities in parasympathetic nervous system activity have been linked to depression, but less is known about processes underlying this relationship. The present study evaluated resting and stress-reactive respiratory sinus arrhythmia (RSA) to a laboratory stressor as predictors of daily interpersonal stress generation and depressive symptoms, whether stress generation mediated the relationship between RSA and depressive symptoms, and potential sex differences. A sample of formerly depressed 102 emerging adults (18-22 years; 78% female) completed a laboratory stressor and daily assessments of stressors and depressive symptoms over two weeks. Multilevel modeling revealed that: 1) lower resting RSA predicted daily depressive symptoms; 2) less RSA reactivity predicted interpersonal stress generation, 3) interpersonal dependent stressors mediated the relationship between RSA reactivity and daily depressive symptoms, and 4) sex differences occurred in the resting RSA-depression relationship. These findings highlight the importance of resting RSA and RSA reactivity in the examination of depression and interpersonal processes.
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50
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Stange JP, Hamilton JL, Fresco DM, Alloy LB. Perseverate or decenter? Differential effects of metacognition on the relationship between parasympathetic inflexibility and symptoms of depression in a multi-wave study. Behav Res Ther 2017; 97:123-133. [PMID: 28772194 DOI: 10.1016/j.brat.2017.07.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 05/26/2017] [Accepted: 07/14/2017] [Indexed: 02/08/2023]
Abstract
Depression often is characterized by inflexible autonomic and metacognitive processes that interfere with effective self-regulation. However, few studies have integrated these factors to improve the prediction of which individuals are at greatest risk for depression. Among 134 undergraduates, we evaluated whether parasympathetic inflexibility (a lack of reduction in respiratory sinus arrhythmia) in response to a sadness induction involving loss would prospectively predict symptoms of depression across four waves of follow-up over twelve weeks. Furthermore, we evaluated whether metacognitive components of perseverative cognition (PC) and decentering (identified by a principal component analysis) would moderate this relationship in opposite directions. Multilevel modeling demonstrated that the relationship between parasympathetic inflexibility and prospective symptoms of depression was exacerbated by PC, but attenuated by decentering. Furthermore, individuals with parasympathetic inflexibility, PC, and low decentering were at greatest risk for symptoms of depression across follow-up. These results support the utility of integrating autonomic and metacognitive risk factors to identify individuals at risk for depression.
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