A cognitive model of suicidal behavior: Theory and treatment

The Predictive Role of Positive Mental Health for Attitudes Towards Suicide and Suicide Prevention: Is the Well-Being of Students of the Helping Professions a Worthwhile Goal for Suicide Prevention?

This study evaluates the potential value of eudaimonic well-being in assessing pro-preventive orientation towards suicide and recognizing suicide as a solution. The aim was to integrate positive and negative conceptualizations of mental health for predicting attitudes towards suicide, and towards suicide prevention, among students of the helping professions. The study participants (166 women and 73 men, mean age 22.84 ± 5.15) answered a set of questionnaires, including a Questionnaire on Attitudes Towards Suicide, Goldberg Health Questionnaire (GHQ-28), Psychological Well-Being Scale (PWB-42) and Centrality of Religiosity Scale. Multiple regression analysis showed that environmental mastery, purpose in life and positive relationships, controlled for religiousness and psychological problems related to general mental health, predicted the variability of attitudes towards suicide and pro-preventive orientation. Sociodemographic variables were not related to attitudes towards suicide. Our findings suggest that positive mental health, represented jointly by low mental health problems and eudaimonic components of happiness, plays a role in predicting pro-preventive attitudes. Therefore, improving positive mental health among students in the helping professions, these being the future gatekeepers, could be considered an auxiliary strategy for suicide prevention.

Do Suicide Attempts of Mood Disorder Patients Directly Increase the Risk for a Reattempt?

Background: Preceding suicide attempts strongly predict future suicidal acts. However, whether attempting suicide per se increases the risk remains undetermined. We longitudinally investigated among patients with mood disorders whether after a suicide attempt future attempts occur during milder depressive states, indicating a possible lowered threshold for acting. Methods: We used 5-year follow-up data from 581 patients of the Jorvi Bipolar Study, Vantaa Depression Study, and Vantaa Primary Care Depression Study cohorts. Lifetime suicide attempts were investigated at baseline and during the follow-up. At follow-up interviews, life-chart data on the course of the mood disorder were generated and suicide attempts timed. By using individual-level data and multilevel modeling, we investigated at each incident attempt the association between the lifetime ordinal number of the attempt and the major depressive episode (MDE) status (full MDE, partial remission, or remission). Results: A total of 197 suicide attempts occurred among 90 patients, most during MDEs. When the dependencies between observations and individual liabilities were modeled, no association was found between the number of past suicide attempts at the time of each attempt and partial remissions. No association between adjusted inter-suicide attempt times and the number of past attempts emerged during follow-up. No indication for direct risk-increasing effects was found. Conclusion: Among mood disorder patients, repeated suicide attempts do not tend to occur during milder depressive states than in the preceding attempts. Previous suicide attempts may indicate underlying diathesis, future risk being principally set by the course of the disorder itself.

An examination of the Entrapment Scale: Factor structure, correlates, and implications for suicide prevention

Entrapment is an emerging theoretical and empirical factor associated with suicide. The current study expanded our understanding of entrapment by examining the Entrapment Scale factor structure, demographic correlates, and association with suicidal thoughts and behaviors (STBs). Data from an online cross-national study of suicide were analyzed from two samples of young adults aged 18-34 (United Kingdom [U.K.] sample N = 418; United States [U.S.] N = 414). Primary findings included: (1) factor-analytic support for a two factor (i.e., internal and external) Entrapment Scale structure; (2) variation in external entrapment subscale factor loadings by sample; (3) significant demographic correlates of elevated entrapment of younger age, female gender, and U.S. sample; (4) significant convergent positive associations for both entrapment types with cognitive (e.g., perceived burdensomeness), mental health (e.g., anxiety), and STB correlates; and (5) significant, robust associations of internal entrapment and perceived burdensomeness with STBs in the U.K. sample. Implications are reviewed for suicide prevention theory, research and practice.

Towards an Explanatory Model of Suicidal Ideation: The Effects of Cognitive Emotional Regulation Strategies, Affectivity and Hopelessness

Suicide constitutes a public health problem that has a significant economic, social and psychological impact on a global scale. Recently, the American Psychological Association has indicated that suicide prevention should be a public health priority. Suicidal ideation appears as a key variable in suicide prevention. The objective of this research was to verify the adjustment of an explanatory model for suicidal ideation, which considers the effects of cognitive emotion regulation strategies, affectivity and hopelessness. An open mode on-line sample of 2,166 Argentine participants was used and a path analysis was carried out. The results make it possible to conclude that the model presents an optimal fit (χ2 = .10, p = .75, CFI = .99, RMSEA = .01) and predicts 42% of suicidal thoughts. The model proves to be invariant based on age and gender. In conclusion, there is an importance of reducing the use of automatic strategies, such as repetitive negative thoughts of ruminative type, and increasing the use of more controlled strategies, such as reinterpretation or planning.

Real-Time Monitoring of Suicide Risk among Adolescents: Potential Barriers, Possible Solutions, and Future Directions

Recent advances in real-time monitoring technology make this an exciting time to study risk for suicidal thoughts and behaviors among youth. Although there is good reason to be excited about these methods, there is also reason for caution in adopting them without first understanding their limitations. In this article, we present several broad future directions for using real-time monitoring among youth at risk for suicide focused around three broad themes: novel research questions, novel analytic methods, and novel methodological approaches. We also highlight potential technical, logistical, and ethical challenges with these methodologies, as well as possible solutions to these challenges.

Theory of mind and suicide ideation and attempt in adolescent inpatients

BACKGROUND

Suicide ideation and attempt are alarmingly prevalent in adolescents, and even more so for youth in psychiatric settings. Interpersonal factors have been emphasized as important in the etiology and maintenance of suicide ideation and attempt in adolescents. Evaluating social cognitive deficits offers important insight into processes underlying interpersonal problems associated with suicide ideation and attempt; however little social-cognitive research has been conducted in this area. The aim of the current study was to explore the relation of theory of mind (ToM) impairments and suicide ideation and attempt among adolescent inpatients.

METHODS

A sample of 391 adolescent inpatients completed measures on ToM, suicidal ideation and attempt, clinical symptoms and sociodemographics.

RESULTS

Binary logistic regression analyses revealed significant relations between excessive ToM (hypermentalizing) and two suicide outcome variables (suicide ideation in the past four weeks, suicide attempt in the past year), while covarying for sociodemographics and multiple clinical symptom scales.

CONCLUSIONS

Excessive ToM, or over-attributing the mental/emotional states of others, appears to share a salient relation to recent suicidal thoughts and behavior in adolescent inpatients. Current findings may indicate that interventions incorporating social cognitive components (e.g., Mentalization Based Therapy and Cognitive Behavioral Therapy) may be of promise to treating youth with suicidal thoughts and behaviors and excessive ToM.

LIMITATIONS

The current study uses cross-sectional data and discrepancies exist in time periods assessed by primary measures.

Life course well-being framework for suicide prevention in Canadian Armed Forces Veterans

Introduction: The risks of suicidality (suicidal ideation or behaviour) are higher in Canadian Armed Forces (CAF) Veterans (former members) than in the Canadian general population (CGP). Suicide prevention is everyone’s responsibility, but it can be difficult for many to see how they can help. This article proposes an evidence-based theoretical framework for discussing suicide prevention. The framework informed the 2017 joint CAF – Veterans Affairs Canada (VAC) suicide prevention strategy. Methods: Evidence for the framework was derived from participation in expert panels conducted by the CAF in 2009 and 2016, a review of findings from epidemiological studies of suicidality in CAF Veterans released since 1976, suicide prevention literature reviews conducted at VAC since 2009, and published theories of suicide. Results: Common to all suicide theories is the understanding that suicide causation is multifactorial, complex, and varies individually such that factors interact rather than lie along linear causal chains. Discussion: The proposed framework has three core concepts: a composite well-being framework, the life course view, and opportunities for prevention along the suicide pathway from ideation to behaviour. Evidence indicates that Veterans are influenced onto, along, and off the pathway by variable combinations of mental illness, stressful well-being problems and life events, individual factors including suicidal diathesis vulnerability, barriers to well-being supports, acquired lethal capability, imitation, impulsivity, and access to lethal means. The proposed framework can inform discussions about both whole-community participation in prevention, intervention and postvention activities at the individual and population levels, and the development of hypotheses for the increased risk of suicidality in CAF Veterans.

Simultaneous Longitudinal Examination of Hopelessness, Thwarted Belongingness, and Perceived Burdensomeness as Predictors of Suicide Ideation

OBJECTIVE

Based on Beck's hopelessness model (Beck, Kovacs, & Weissman, Journal of the American Medical Association, 234, 1975, 1146) and Joiner's (Why people die by suicide, 2005, Harvard University Press, Boston, MA) interpersonal theory of suicide, this study simultaneously examined three cognitive risk factors (hopelessness, thwarted belongingness, and perceived burdensomeness) as predictors of suicide ideation.

METHOD

The study focused on high school and college students (ns = 192 and 142, respectively), assessed twice 4 months apart.

RESULTS

When hopelessness, perceived burdensomeness, and thwarted belongingness were examined separately, each cognitive risk factor predicted future suicide ideation in both groups. When the three cognitions were tested simultaneously, none emerged as uniquely predictive of suicide ideation. A longitudinal, latent variable model suggested that a common factor underlying all three types of cognition significantly predicted suicide ideation. Furthermore, thwarted belongingness predicted both hopelessness and perceived burdensomeness over time.

CONCLUSIONS

Results suggest ways that aspects of Beck's and Joiner's theories complement each other and could be combined to yield a more comprehensive understanding of cognitive factors associated with suicide ideation.

Developing Predictive Models to Enhance Clinician Prediction of Suicide Attempts Among Veterans With and Without PTSD

The limitations of self-report confine clinicians' ability to accurately predict suicides and suicide attempts (SAs). Behavioral assessments (e.g., Death Implicit Association Test [IAT]) may be a means of supplementing self-report and clinician prediction.

OBJECTIVE

The authors aimed to build and test a predictive model of SAs that included established risk factors and measures of suicide risk, and Death IAT scores. The authors also sought to test the predictive validity of the SA model among subgroups of Veterans with and without PTSD.

METHOD

Participants included 166 psychiatrically hospitalized Veterans.

RESULTS

A model that included patient prediction, age, and Death IAT scores improved upon clinician prediction of SAs during the six-month follow-up (C-statistic for clinician prediction = 73.6, 95% CI [62.9, 84.4] and C-statistic for model = 82.8, 95% CI [74.6, 91.0]). The model was tested in subgroups of Veterans with and without PTSD. Among Veterans without PTSD, the Death IAT and patient prediction predicted SAs above and beyond clinician prediction, while these variables did not significantly improve prediction among Veterans with PTSD (C-statistic for no-PTSD = 91.3, 95% CI [80.6, 1.00]; C-statistic for PTSD = 86.8, 95% CI [76.8, 96.8]). Building a separate model for Veterans with PTSD did not improve upon clinician prediction.

CONCLUSIONS

Findings indicate that predictive models may bolster clinician prediction of SAs and that predictors may differ for Veterans with PTSD.

Short-term change and prediction of suicidal ideation among adolescents: a daily diary study following psychiatric hospitalization

BACKGROUND

Our understanding of suicidal ideation (SI) and its risk precursors is largely informed by studies spanning over wide time intervals (weeks, months, years). Little is known about SI as it occurs in daily lives of individuals at risk for suicide, the extent to which suicidal thoughts are dynamic over short periods of time, and the degree to which theoretically informed risk factors predict near-term SI.

METHODS

Thirty-four adolescents hospitalized due to last-month suicide attempt and/or last-week SI (76% female; ages 13-17) responded to daily surveys sent to their cell phones for four consecutive weeks after discharge (n = 652 observations).

RESULTS

There was notable variability in day-to-day SI, with half of ideation ratings changing at least one within-person standard deviation from one day to the next. Results of mixed effects models revealed concurrent (same-day), but not short-term prospective (next-day), associations between SI (frequency, duration, urge) and well-established predictors (connectedness, burdensomeness, hopelessness). However, synergistic effects of low connectedness with either high burdensomeness or high hopelessness were reliably associated with more severe same- and next-day suicidal ideation.

CONCLUSIONS

This study adds to emerging literature indicating that suicidal thoughts fluctuate considerably among individuals at risk for suicide, further extending it by focusing on adolescents in the critical posthospitalization period. Fostering high-risk adolescents' sense of connectedness to others may be an especially promising intervention target. Frequent assessment of SI and its predictors, independently and in combination, could help identify promising predictors of short-term risk and meaningful intervention targets in high-risk teens.

Suicidal behavior and stress generation in adolescents

Stress generation has potential to account for recurrent suicidal behavior. The current study represents a first step toward evaluating this possibility in a sample of adolescent psychiatric inpatients (n = 99; 79.80% female) followed over six months. At index admission, participants completed baseline measures of depressive symptom severity, suicidal ideation, lifetime history of suicide attempts, and negative life events using a contextual threat life stress interview. Negative life events since baseline were assessed at the follow-up assessment. Consistent with the stress generation hypothesis, lifetime number of suicide attempts prospectively predicted higher rates of dependent, but not independent, stress. Bayesian analyses also yielded substantial support for an association with overall dependent stress, but provided more modest support for specificity to this form of life stress relative to independent stress. Implications of these findings and directions for future research further clarifying the role of stress generation in suicidal behavior are discussed.

Suicide in Transgender Veterans: Prevalence, Prevention, and Implications of Current Policy

Transgender adults serve in the U.S. military at 2 to 3 times the rate of the general adult population. Unfortunately, transgender veterans die by suicide at twice the rate of their cisgender veteran peers and approximately 5.85 times the rate of the general population. This article reviews the literature regarding the prevalence of suicidal thoughts and behaviors in transgender veterans. Suicide risk and resilience factors are reviewed, and future areas of study are detailed that incorporate findings from the broader suicide-prevention literature and research on transgender mental-health disparities. Individual services and broader prevention considerations are discussed, including the adaptation of evidence-based suicide-specific psychological interventions, national transgender health-training resources, and relevant veteran suicide-prevention initiatives. Finally, U.S. Department of Defense and U.S. Department of Veterans Affairs policies regarding transgender service and health care are reviewed. State-level policies relevant to transgender veteran suicide such as firearm ownership and nondiscrimination laws are also reviewed, and their implications for suicide prevention are discussed. The aim of this article is to provide a broad review of research findings from multiple fields of study to assist health-care providers, researchers, and policymakers in their efforts to prevent transgender veteran suicide.

Psychometric properties of the German version of the suicide cognitions scale in two clinical samples

The present study aimed at evaluating the psychometric properties of German Suicide Cognitions Scale (SCS-18/SCS-9) in two clinical samples. Validity and reliability were established in an outpatient- (n = 277) and in an inpatient sample (n = 75). Statistical analyses included confirmatory factor analyses, correlation analyses, between-group comparison by history of lifetime suicide attempts, and regression analyses. The three-factor model showed good model fit for the long version of the SCS (SCS-18). For the short version of the SCS (SCS-9), a bifactor model yielded the best fit. Overall, the total scale of the SCS-18 and the SCS-9 and the subscales of the SCS-18 showed satisfactory internal consistency, as well as good convergent validity. The SCS-18 subscales and the SCS-9 demonstrated clinical utility by differentiating between participants with prior and without prior suicide attempts. The SCS (subscale unsolvability and SCS-9 score) predicted current suicide ideation as well as suicide ideation 7-10 days later - even after controlling for established risk-factors (e.g., depression, hopelessness, interpersonal variables). Results suggest that the SCS-18 and the SCS-9 are reliable and valid measures to assess suicidal cognitions that can be used in clinical as well as in research settings.

Predicting status along the continuum of suicidal thoughts and behavior among those with a history of nonsuicidal self-injury

Nonsuicidal self-injury (NSSI) and suicidal thoughts and behavior often co-occur, representing a growing public health concern. Despite extensive research examining suicidal thoughts and behavior among those who engage in NSSI, there is a lack of research investigating factors that, when considered together, can differentiate individuals along the continuum of suicidal thoughts and behavior (no history, suicidal ideation, suicide plan, suicide attempt). This study sought to address this question using a sample of 1178 college students with NSSI history (68.70% female). Discriminant function analysis was conducted including the following predictors: NSSI characteristics, negative affect difficulties, and behavioral and demographic risk factors for suicidal thoughts and behavior. Results suggest that self-disclosure of suicidal ideation, number of lifetime NSSI methods, NSSI frequency, depressive symptoms, and age most parsimoniously differentiate study groups. Those who use a greater number of NSSI methods and acts, paired with higher depressive symptoms and repeated self-disclosure of suicidal ideation are most likely to have a suicide attempt history; decreases in these variables suggest membership within less severe groups. Furthermore, older age may be related to greater suicidality. Findings suggest that the evaluation and co-occurrence of these variables may contribute to a more accurate suicide risk assessment.

Amygdala Functional Connectivity During Self-Face Processing in Depressed Adolescents With Recent Suicide Attempt

OBJECTIVE

Suicide is the second leading cause of death among adolescents; however, objective biomarkers of suicide risk are lacking. Aberrant self-face amygdala activity is associated with suicide ideation, and its connectivity with neural regions that enable self-processing (eg medial prefrontal cortex) may be a suicide risk factor.

METHOD

Adolescents (aged 11-17 years; N = 120) were sorted into four groups: healthy controls (HC), depressed individuals with low suicide ideation (LS), depressed individuals with high suicide ideation (HS), and depressed suicide attempters (SA). Youth completed an emotional (Happy, Sad, Neutral) self-face recognition task in the scanner. Bilateral amygdala task-dependent functional connectivity was determined with psychophysiological interaction analysis. Connectivity was compared across groups and within Self versus Other faces across emotions and hemispheres. Voxelwise results were thresholded (p < .005, uncorrected) and corrected for multiple comparisons (p < .05, familywise error).

RESULTS

Both HS and SA displayed greater amygdala connectivity with the dorsolateral prefrontal cortex, dorsomedial prefrontal cortex, and precuneus, compared to LS, who, in turn, showed greater connectivity than HC. Greater left amygdala-rostral anterior cingulate cortex (rACC) connectivity was observed in SA compared to all other groups, whereas right amygdala-rACC connectivity was greater in HS versus LS and HC.

CONCLUSION

Greater connectivity between amygdala and other regions implicated in self-face processing differentiated suicide ideation and suicide attempt groups. A dose-dependent response showed that greater rACC-left amygdala connectivity during self-face processing was associated with a recent suicide attempt, but that a greater rACC-right amygdala connectivity was associated with suicide ideation.

The Sexual Harassment-Suicide Connection in the U.S. Military: Contextual Effects of Hostile Work Environment and Trusted Unit Leaders

Sexual harassment has been associated with suicidal behaviors, and with the rise in suicides in the U.S. military, sexual harassment's role in suicide has been of growing interest. Lacking are studies that examine group- or unit-level variables in the relationship of sexual harassment to suicidal behaviors (thoughts, plans, and attempts). In this study, survey data from soldiers (12,567 soldiers in 180 company-sized units) who completed the Unit Risk Inventory administered during calendar year 2010 were analyzed using hierarchical linear modeling. At the individual level, sexual harassment was associated with a fivefold increase for risk of suicide. Reporting that leaders could be trusted was associated with a decreased suicide risk by about one-third. There was no statistically significant interaction between sexual harassment and trusted leaders in predicting the suicidal behaviors. At the group level, units or companies having higher levels of sexual harassment also had soldiers three times more at risk for suicide. A cross-leveling effect was also observed: Among units having higher levels of sexual harassment, the negative correlation (buffering effect of unit leaders on suicidal behaviors) was diminished. Implications of findings for preventing sexual harassment and suicide risk are discussed.

Understanding Indigenous Suicide Through a Theoretical Lens: A Review of General, Culturally-Based, and Indigenous Frameworks

Many American Indian/Alaska Native (AI/AN) communities throughout North America continue to experience the devastating impact of suicide. Theoretical explanations of suicide from a psychological, sociological, cultural, and Indigenous perspective all differ in focus and applicability to AI/AN communities. These diverse theoretical frameworks and models are presented herein to examine the potential applicability, strengths, and limitations in understanding AI/AN suicide. In providing these perspectives, continued discussions and empirical examinations of AI/AN suicide can guide informative, culturally-informed suicide prevention and intervention efforts.

Predicting suicide attempts in adolescents with longitudinal clinical data and machine learning

BACKGROUND

Adolescents have high rates of nonfatal suicide attempts, but clinically practical risk prediction remains a challenge. Screening can be time consuming to implement at scale, if it is done at all. Computational algorithms may predict suicide risk using only routinely collected clinical data. We used a machine learning approach validated on longitudinal clinical data in adults to address this challenge in adolescents.

METHODS

This is a retrospective, longitudinal cohort study. Data were collected from the Vanderbilt Synthetic Derivative from January 1998 to December 2015 and included 974 adolescents with nonfatal suicide attempts and multiple control comparisons: 496 adolescents with other self-injury (OSI), 7,059 adolescents with depressive symptoms, and 25,081 adolescent general hospital controls. Candidate predictors included diagnostic, demographic, medication, and socioeconomic factors. Outcome was determined by multiexpert review of electronic health records. Random forests were validated with optimism adjustment at multiple time points (from 1 week to 2 years). Recalibration was done via isotonic regression. Evaluation metrics included discrimination (AUC, sensitivity/specificity, precision/recall) and calibration (calibration plots, slope/intercept, Brier score).

RESULTS

Computational models performed well and did not require face-to-face screening. Performance improved as suicide attempts became more imminent. Discrimination was good in comparison with OSI controls (AUC = 0.83 [0.82-0.84] at 720 days; AUC = 0.85 [0.84-0.87] at 7 days) and depressed controls (AUC = 0.87 [95% CI 0.85-0.90] at 720 days; 0.90 [0.85-0.94] at 7 days) and best in comparison with general hospital controls (AUC 0.94 [0.92-0.96] at 720 days; 0.97 [0.95-0.98] at 7 days). Random forests significantly outperformed logistic regression in every comparison. Recalibration improved performance as much as ninefold - clinical recommendations with poorly calibrated predictions can lead to decision errors.

CONCLUSIONS

Machine learning on longitudinal clinical data may provide a scalable approach to broaden screening for risk of nonfatal suicide attempts in adolescents.

Posttraumatic Cognitions and Suicidal Ideation among Veterans receiving PTSD Treatment

With approximately 20 veteran suicide deaths per day, suicidal ideation (SI) among veterans is an important concern. Posttraumatic stress disorder (PTSD) is associated with SI among veterans, yet mechanisms of this relationship remain unclear. Negative posttraumatic cognitions contribute to the development and maintenance of PTSD, yet no studies have prospectively examined the relationship between posttraumatic cognitions and SI. Veterans (N = 177; 66% Male) participating in a 3-week intensive outpatient program for PTSD completed assessments of PTSD severity, depressive symptoms, SI, and posttraumatic cognitions. Negative posttraumatic cognitions about the self significantly predicted SI at posttreatment, controlling for pretreatment levels of SI, depression, and PTSD symptom severity. Self-blame and negative posttraumatic cognitions about others/world did not predict SI prospectively. Negative posttraumatic cognitions about the self appear to be an important factor in the manifestation of SI among veterans with PTSD and should be monitored as a potential indicator of suicide risk.

Theoretical and empirical foundations of a novel online social networking intervention for youth suicide prevention: A conceptual review

Suicide is a major public health problem and is the second leading cause of death in young people worldwide. Indicating a lack of adequate treatment approaches, recent data suggest a rising suicide rate. Current approaches to suicide prevention do not sufficiently account for the specific needs of young people or the ways in which they engage with the health system, nor are they adequately theory-driven. In this paper, we review an empirically-supported theoretical model of suicide together with the latest evidence in treating young people who are at risk. We discuss the potential efficacy of social-media-based online interventions, with a particular focus on how they may be uniquely placed to target interpersonal risk factors for suicide. We highlight the risks associated with such interventions, including the potential for contagion to occur. Based on prominent theoretical models and gaps in existing treatment approaches, we propose a newly-developed, theory-driven, online social-networking-based intervention for suicide prevention in young people.

The effect of structured education on self-esteem and the suicide probability of male adolescents living in orphanages

AIM

This study aims to observe the effect of structured education provided to improve self-esteem and hope on the self-esteem and the suicide probability of male adolescents living in orphanages.

METHOD

The study was conducted as an intervention study with pretest-posttest follow-up design. The study sample consisted of 30 adolescents living in the Ağrı Orphanage for Boys. Sessions of group education were conducted twice a week for 8 weeks, giving a total of 16 sessions; each session lasted for 60 to 90 minutes. Data were collected using a Personal Information Form, Rosenberg Self-Esteem Scale (RSES), and the Suicide Probability Scale (SPS). A repeated measures analysis of variance was used for data analysis. Three measurements were performed: the first at the pretest stage; the second at the posttest stage, and the third six weeks after the completion of the program.

FINDINGS

The SPS total scores and subscale scores of the study group were found to be statistically significantly lower in the second and the third measurements than in the first measurement. The RSES scores were found to be statistically significantly higher in the second and the third measurements than in the first measurement.

DISCUSSION

Because this group of adolescents is deemed at risk, it was suggested that the self-esteem and the suicide probability of the adolescents living in orphanages should be analyzed in more detail, and that preventive approaches should be considered.

Lifetime acute suicidal affective disturbance symptoms account for the link between suicide-specific rumination and lifetime past suicide attempts

BACKGROUND

Suicide-specific rumination, defined as rumination about one's suicidal thoughts, intentions, and plans, and Acute Suicidal Affective Disturbance (ASAD) have each been proposed as relevant and proximal predictors of suicidal behavior. The purpose of the current study was to examine relations between suicide-specific rumination, ASAD, and previous number of lifetime suicide attempts, particularly whether ASAD accounted for the association between suicide-specific rumination and previous lifetime suicide attempts.

METHODS

Undergraduate students with a past history of suicidality (N = 300) completed measures of their suicide-specific rumination, lifetime ASAD symptoms, and lifetime history of suicide attempts on an online questionnaire in exchange for course credit.

RESULTS

ASAD accounted for the association between suicide-specific rumination and lifetime number of past suicide attempts. This effect was particularly driven by suicidal intent aspect of ASAD, as opposed to the ASAD social alienation, self-alienation, and overarousal facets. An alternative model indicated that suicide-specific rumination did not account for the association between ASAD and lifetime past suicide attempts.

LIMITATIONS

This study utilized exclusively self-report measures and a cross-sectional design, thereby precluding inferences of causality.

CONCLUSIONS

These findings indicated that ASAD may explain the relationship between suicide-specific rumination and lifetime past suicide attempts. Future research using a prospective design is needed to elucidate these patterns and determine causal relationships.

Decision-making performance of depressed patients within 72 h following a suicide attempt

BACKGROUND

The significance of decision-making in suicidal behaviour is often highlighted; however, the performance of persons in suicide crisis is unknown. This study aimed to explore the comprehensive decision-making profile of depressed patients following a suicide attempt.

METHODS

Decision-making was measured by reward- ("ABCD") and punishment- ("EFGH") sensitive versions of the Iowa Gambling Task (IGT) in 59 medication-free depressed patients within 72 h after a suicide attempt and in 46 healthy control subjects. Severity of depressive symptoms was assessed in the patient group by the Hamilton Depression Rating Scale.

RESULTS

Performance of the two groups differed significantly on the IGT ABCD, while a trend towards significant differences was seen on the IGT EFGH. Severity of depressive symptoms did not affect the depressed participants' decision-making performance.

LIMITATIONS

Subjects were not matched for years of education. Administration of the IGT ABCD and IGT EFGH was not counterbalanced. Methods of suicide attempts and history of previous attempts were not collected.

CONCLUSIONS

Individuals with a recent suicide attempt showed decision-making dysfunction on both IGT versions. However, on the EFGH, the overall difference between groups was not significant, depressed participants' performance remained poor during all blocks. Their behaviour reflected a focus on best immediate possible outcomes, not regarding future adverse consequences. This could be a result of psychological and cognitive alterations which modulate suicidal behaviour independent from mood. Further longitudinal studies should verify this possibility. Investigation of state-dependent neuropsychological characteristics of suicidal behaviour might be essential for detecting acute suicidal crisis.

Suicidal ideation in patients with coronary heart disease and hypertension: Baseline results from the DEPSCREEN-INFO clinical trial

BACKGROUND

A high proportion of cardiac patients suffers from depression, which is an antecedent for suicidal ideation. This study identifies clinical vulnerabilities for suicidal ideation in cardiac patients.

METHODS

The primary outcome of the study was severity of suicidal ideation as measured with the Patient Health Questionnaire (PHQ-9) item No. 9. Covariates were demographics, cardiac characteristics (i.e., Canadian Cardiovascular Society angina rating of chest pain and New York Heart Association rating of shortness of breath), depression (PHQ-8,i.e., PHQ-9 minus item No. 9), anxiety (Generalized Anxiety Disorder-7, GAD-7), somatic symptoms (PHQ-15), illness perception (Brief-Illness Perception Questionnaire), and health-related quality of life (EuroQol-5D, EQ 5D).

RESULTS

Data from 1,976 patients were analysed. At least 14% (95% CI [12%, 16%]) of patients indicated suicidal ideations within the last 2 weeks. Bivariate analyses yielded associations between suicidal ideation and higher levels of depression severity, anxiety severity, somatic symptom burden, chest pain, shortness of breath, negative illness perceptions, reduced health-related quality of life, and a higher probability of living alone (all p < 0.001). A multivariable ordinal regression revealed depression severity and anxiety severity to show the highest associations with suicidal ideation (OR_PHQ-8  = 1.22, p < 0.001; OR_GAD-7  = 1.09, p < 0.001). Having a defibrillator implant was associated with a lower probability of suicidal ideation (OR = 0.27, p = 0.017).

CONCLUSIONS

This study identified several clinical vulnerabilities of suicidal ideation. The results stress the importance of screening for suicidal ideation in clinical practice.

Word count as an indicator of suicide risk in an inpatient setting

The current study replicates a previously used methodology with a suicidal inpatient sample regarding word counts generated by participants writing about suicidal constructs. Word counts (i.e., the number of written words) on the Suicide Status Form from initial sessions with suicidal inpatients were compared to self-rated suicide risk scores as well as to continuous and repeated measures of hopelessness and suicide ideation assessed over the course of inpatient care. Results showed that higher word counts were associated with initially higher suicide ideation scores that steadily declined over the course of treatment. Lower word counts were associated with lower initial hopelessness scores that increased during treatment before ultimately decreasing. In addition, word count was not found to be a significant predictor of self-rated suicide risk. Clinical implications of these data and future directions are discussed.

Linking Psychological Strain and Suicide Ideation: A Test of the Mediating Effect of Self-Determination Among Chinese Workers

Psychosocial causes of suicidal ideation among those who do not have diagnosable mental illnesses remain largely unexplored. Synthesizing the strain theory of suicide and self-determination theory, this research tested a multiple mediator model linking psychological strain with suicidal ideation via three basic psychological need satisfaction. Data from 750 professional employees in China support for the partially mediated effects of psychological strain via need satisfaction of competence and relatedness. These findings contribute to understanding Chinese employees' suicidal ideation from positive psychology perspective that is distinct from what is known from psychopathology.

Psychometric properties and measurement invariance of the Beck hopelessness scale (BHS): results from a German representative population sample

BACKGROUND

The Beck Hopelessness Scale (BHS) has been the most frequently used instrument for the measurement of hopelessness in the past 40 years. Only recently has it officially been translated into German. The psychometric properties and factor structure of the BHS have been cause for intensive debate in the past.

METHODS

Based on a representative sample of the German population (N = 2450) item analysis including item sensitivity, item-total correlation and item difficulty was performed. Confirmatory factor analyses (CFA) for several factor solutions from the literature were performed. Multiple group factor analysis was performed to assess measurement invariance. Construct validity was assessed via the replication of well-established correlations with concurrently assessed measures.

RESULTS

Most items exhibited adequate properties. Items #4, #8 and #13 exhibited poor item characteristics- each of these items had previously received negative evaluations in international studies. A one-dimensional factor solution, favorable for the calculation and interpretation of a sum score, was regarded as adequate. A bi-factor model with one content factor and two method factors (defined by positive/negative item coding) resulted in an excellent model fit. Cronbach's alpha in the current sample was .87. Hopelessness, as measured by the BHS, significantly correlated in the expected direction with suicidal ideation (r = .36), depression (r = .53) and life satisfaction (r = -.53). Strict measurement invariance could be established regarding gender and depression status. Due to limited research regarding the interpretation of fit indices with dichotomous data, interpretation of CFA results needs to remain tentative.

CONCLUSION

The BHS is a valid measure of hopelessness in various subgroups of the general population. Future research could aim at replicating these findings using item response theory and cross-cultural samples. A one-dimensional bi-factor model seems appropriate even in a non-clinical population.

Peer victimization and suicidal ideation: The role of gender and depression in a school-based sample

The current study investigated the relations among traditional and cyber victimization, depressive symptoms, suicidal ideation, and gender in a school-based sample of 403 9th grade (13 to 16-year-old) adolescents. Path analyses indicated that both traditional victimization and cyber victimization were associated with suicidal ideation indirectly through depressive symptoms. Although there was little evidence of gender differences in the associations among peer victimization and depressive symptoms and suicidal ideation, the relation between depressive symptoms and suicidal ideation was found to be significantly stronger for girls than boys. The current investigation confirms the complexity of the association between peer victimization and suicidal ideation and that depressive symptoms, as well as gender, may play a role in this complex relation. Future research should continue to explore the associations among victimization, depressive symptoms, and suicidal ideation within a social ecological framework.

Suicide-Specific Rumination Relates to lifetime suicide attempts above and beyond a variety of other suicide risk factors

Suicide-specific rumination, defined as a mental fixation on one's suicidal thoughts, intentions, and plans, may be an important predictor of suicidal behavior. To date, suicide-specific rumination has demonstrated convergence with, yet distinction from, a variety of suicide risk factors, and differentiated suicide attempters from ideators. However, no research has examined whether suicide-specific rumination is associated with lifetime suicide attempts above and beyond the presence of a host of other relevant suicide risk factors. The present study tested this hypothesis in samples of students (N = 300) and community members recruited via Amazon's MTurk (N = 209) who reported a lifetime history of suicidal ideation. Results indicated that suicide-specific rumination was associated with the presence of a lifetime suicide attempt, above and beyond a variety of other commonly-cited risk factors for suicidal thoughts and behaviors in both samples, including suicidal ideation, general rumination, interpersonal theory variables, emotion-relevant factors (dysregulation, experiential avoidance, distress tolerance, negative affect), symptoms of depression and anxiety, and overarousal. Overall, though limited by the use of non-clinical samples and a cross-sectional study design, that suicide-specific rumination outperformed all other suicide risk factors in predicting the presence of a lifetime suicide attempt suggests the potential potency of this relatively understudied risk factor in understanding transitions to suicidal behavior.

Socio-Cognitive Behavioral Therapy for Suicidal Behavior with a Puerto Rican Male Adolescent

In 2015, fifteen percent of Puerto Rican adolescents attempted suicide. In general, females have more suicidal thoughts while males are more likely to die by suicide. However, few evidence-based treatments have been developed for this population.

Objectives

The aim of this study was to illustrate the therapeutic process of a male Puerto Rican adolescent treated with the Socio-Cognitive Behavioral Therapy for Suicidal Behavior (SCBT-SB), a culturally informed protocol, and to discuss how developmental, feminist, and family system perspectives were incorporated in the SCBT-SB treatment model.

Method

A case study is presented: Julio received the SCBT-SB after a psychiatric hospitalization subsequent to threating to commit suicide. Baseline and post-treatment assessments evaluated diagnosis, risk factors (e.g. hopelessness), treatment satisfaction, and suicidal behaviors.

Results

Julio demonstrated clinically significant change in depressive symptoms, hopelessness, suicidal ideation, and aggressive/impulsive behaviors.

Conclusions

The SCBT-SB was feasible to implement and proved acceptable to the client and his family.

Understanding suicide risk within the Research Domain Criteria (RDoC) framework: A meta-analytic review

BACKGROUND

The field is in need of novel and transdiagnostic risk factors for suicide. The National Institute of Mental Health's Research Domain Criteria (RDoC) provides a framework that may help advance research on suicidal behavior.

METHOD

We conducted a meta-analytic review of existing prospective risk and protective factors for suicidal thoughts and behaviors (ideation, attempts, and deaths) that fall within one of the five RDoC domains or relate to a prominent suicide theory. Predictors were selected from a database of 4,082 prospective risk and protective factors for suicide outcomes.

RESULTS

A total of 460 predictors met inclusion criteria for this meta-analytic review and most examined risk (vs. protective) factors for suicidal thoughts and behaviors. The overall effect of risk factors was statistically significant, but relatively small, in predicting suicide ideation (weighted mean odds ratio: wOR = 1.72; 95% CI: 1.59-1.87), suicide attempt (wOR = 1.66 [1.57-1.76), and suicide death (wOR = 1.41 [1.24-1.60]). Across all suicide outcomes, most risk factors related to the Negative Valence Systems domain, although effect sizes were of similar magnitude across RDoC domains.

CONCLUSIONS

This study demonstrated that the RDoC framework provides a novel and promising approach to suicide research; however, relatively few studies of suicidal behavior fit within this framework. Future studies must go beyond the "usual suspects" of suicide risk factors (e.g., mental disorders, sociodemographics) to understand the processes that combine to lead to this deadly outcome.

ERP investigation of attentional disengagement from suicide-relevant information in patients with major depressive disorder

BACKGROUND

Previous studies suggest the presence of attentional bias towards suicide-relevant information in suicidal individuals. However, the findings are limited by their reliance on behavioral measures. This study investigates the role of difficulty in disengaging attention from suicide-relevant stimuli using the P300 component of event-related potentials (ERPs).

METHODS

Forty-four adults with Major Depressive Disorder (MDD) were administered the spatial cueing task using suicide-relevant and negatively-valenced words as cue stimuli. Disengagement difficulty was measured using reaction time and P300 during invalid trials.

RESULTS

P300 amplitudes at Pz were higher in suicide-relevant compared to negatively-valenced word condition on invalid trials for participants with low rates of suicidal behavior. However, no such difference was found among participants with high rates of suicidal behavior. P300 amplitudes for suicide-relevant word condition were negatively correlated with "lifetime suicide ideation and attempt" at Pz. No significant results were found for the reaction time data, indicating that the ERP may be more sensitive in capturing the attentional disengagement effect.

LIMITATIONS

The groups were divided according to Suicidal Behaviors Questionnaire-Revised (SBQ-R) total score. Neutral stimulus was not included as cue stimuli. Most participants were under medication during the experiment.

CONCLUSIONS

Our results indicate that patients with MDD and low rates of suicidal behavior show difficulty in disengaging attention from suicide-relevant stimuli. We suggest that suicide-specific disengagement difficulties may be related to recentness of suicide attempt and that acquired capability for suicide may contribute to reduced disengagement difficulties.

German Beck Scale for Suicide Ideation (BSS): psychometric properties from a representative population survey

BACKGROUND

Suicidal ideation has been identified as one of the major predictors of attempted or actual suicide. Routinely screening individuals for endorsing suicidal thoughts could save lives and protect many from severe psychological consequences following the suicide of loved ones. The aim of this study was to validate the German version of the Beck Scale for Suicide Ideation (BSS) in a sample representative for the Federal Republic of Germany.

METHODS

All 2450 participants completed the first part of the Scale, the BSS-Screen. A risk group of n = 112 individuals (4.6%) with active or passive suicidal ideation was identified and subsequently completed the entire BSS.

RESULTS

Satisfactory internal reliability (α = .97 for the BSS-Screen; α = .94 for the entire BSS) and excellent model fit indices for the one-dimensional factorial structure of the BSS-Screen (CFI = .998; TLI = .995; RMSEA = .045 [95%-CI: .030-.061]) were confirmed. Measurement invariance analyses supported strict invariance across gender, age, and depression status. We found correlations with related self-report measures in expected directions comparable to previous studies, indicating satisfactory construct validity.

LIMITATIONS

Our study involved cross sectional data, hence neither predictive validity nor retest-reliability were examined. As only the risk group of n = 112 individuals completed the entire measure, confirmatory factor analyses could not be conducted for the full BSS.

CONCLUSION

The German translation of the BSS is a reliable and valid instrument for assessing suicidal ideation in the general population. Using it as a screening device in general and specialized medical care could substantially advance suicide prevention.

Understanding the relationship between suicidality, current depressed mood, personality, and cognitive factors

OBJECTIVES

Links between suicidality and depressed mood are well established. There is, however, little information about the emotional regulation processes that underlie the relationship between suicidality and current low mood, and how these processes differ between groups of never-suicidal (NS), suicidal ideators, and suicide attempters. As suicidality and depression are heterogeneous constructs, this study aimed to conduct within- and between-group comparisons of known suicide risk factors that are associated with emotion regulation (neuroticism, trait aggression, brooding, impulsivity, and overgeneral autobiographical memories).

DESIGN

Correlational design using between- and within-group comparisons from self-report measures.

METHODS

Inter- and intragroup differences were identified using Pearson's correlation coefficients and tests of difference. An analysis of indirect effects was used to investigate whether the relationship between suicidality and current low mood was mediated by neuroticism, trait aggression, brooding, impulsivity, and overgeneral autobiographical memories, and if this relationship varied according to group type.

RESULTS

Brooding appeared to be a consistent feature of all three groups and was closely related to current low mood. Compared to the NS group, the relationship between suicide attempts and current low mood showed greater associations with brooding, trait aggression, and overgeneral autobiographical memories. Compared to the NS group, the suicidal ideation group showed stronger associations with neuroticism and impulsivity, but these factors did not correlate with low mood.

CONCLUSION

These results suggest a need for larger studies to focus on heterogeneity within suicidal populations and consider how different combinations of risk factors may heighten or reduce suicide risk.

PRACTITIONER POINTS

It is well known that the severity and intensity of suicide and depressed presentations vary because of underlying dispositional and contextual factors (Fried & Nesse, ) which, in turn, affect how events are interpreted and responded to. Despite this, there is little research about how these mechanisms operate in different types of suicide groups, and their influence on the relationship between suicidality and current low mood. Understanding interrelationships that affect current low mood is of clinical significance because past suicidal history and deteriorations in already negative mood are linked to repeated suicide attempts and completion. Our findings show that ruminative brooding, defined as a tendency to repeatedly think about emotional aspects of an event, consistently correlates with current low mood across different types of suicidal groups (NS, suicidal ideators, and suicide attempters), and across analyses. Findings also show that suicidal ideation and attempt groups were associated with specific personality characteristics that increased the propensity of emotional responding and interpretation compared to the NS group. The relationship between suicide attempt and current low mood had a higher propensity to be influenced by trait aggression, brooding, and overgenerality compared to the NS group. In contrast, although the suicidal ideation group correlated more strongly with neuroticism and impulsivity, these factors did not influence current low mood. In terms of clinical practice, these findings imply that specific styles of interpretation and thinking may maintain the relationship between suicidality and current low mood. Given the cross-sectional nature of the study, however, it is not possible to imply causality. Nevertheless, the findings obtained provide some support for transdiagnostic models of cognitive-behavioural processes that could be developed further.

Suicidal ideation and attentional biases in children: An eye-tracking study

BACKGROUND

Despite theoretical and empirical evidence for a heighted responsiveness to signals of social-threat in suicidal individuals, no studies to date have examined whether this responsiveness might also manifest in the form of specific biases in attention to interpersonal stimuli. The current study, therefore, examined the presence and nature of attentional biases for facial expressions of emotion in children with and without a history of suicidal ideation (SI).

METHOD

Participants were 88 children (44 with a history of SI and 44 demographically and clinically matched controls without such history) recruited from the community. The average age of children was 9.26 years (44.3% female; 67.0% Caucasian). Children's history of SI was assessed via structured interviews with children and their parent. Attentional biases were assessed using a dot probe task and included fearful, happy, and sad facial stimuli and focused on eye tracking and reaction time indices of attentional bias.

RESULTS

Children with a history of SI exhibited significantly greater gaze duration toward fearful faces. The findings appeared to be at least partially independent of children's history of major depression or anxiety disorders or their current depressive or anxious symptoms.

LIMITATIONS

The study is limited by its cross-sectional design, which precludes any causal conclusions regarding the role of attentional biases in future suicide risk.

CONCLUSIONS

Our results suggest that children with a history of SI exhibit biases in sustained attention toward socially-threatening facial expressions. Pending replications, these findings might represent a new avenue of suicide risk assessment and intervention.

Understanding Suicidal Ideation in Latino/a Adolescents Living in Puerto Rico

Puerto Rican adolescents, as well as other Latinos/as, have been identified at higher risk for suicidal ideation and attempts compared to other ethnic groups. However, research designed to better understand suicidality among Puerto Rican adolescents is rare.

OBJECTIVE

A socio-cognitive vulnerability model of suicidal ideation was tested in adolescents living in Puerto Rico.

METHOD

Multiple group path analyses were performed to assess the effect of self-reported socio-environmental and vulnerability factors on suicidal ideation, by sex, in 233 students from the metropolitan area of San Juan, Puerto Rico.

RESULTS

Overall, the model explained a large amount of the variance in suicidal ideation (r2 = .59 for females and r2 = .48 for males). Depressive symptoms had the strongest total effect on suicidal ideation for both sexes (r = .69 for females and r = .53 for males) and negative life events were the most salient socio-environmental factor. Hopelessness had a direct effect on suicidal ideation for males only. Externalizing behaviors had a direct effect on suicidal ideation for both males and females, but it was particularly strong for females.

CONCLUSION

Results support the mediating role of vulnerability factors and the differential importance of socio-environmental and vulnerability factors in understanding suicidal ideation among Puerto Rican adolescents. The relevance of exploring different developmental paths to suicidal ideation, separately by sex, is discussed.

A behavioral and cognitive neuroscience perspective on impulsivity, suicide, and non-suicidal self-injury: Meta-analysis and recommendations for future research

We conducted a meta-analysis of neurobehavioral and neurocognitive indices of impulsivity in relation to suicidal thoughts and behaviors, as well as non-suicidal self-injury (NSSI). In our systematic review, 34 studies were identified and submitted to a random-effects meta-analysis. A small pooled effect size was observed for the association between behavioral impulsivity and NSSI (OR=1.34, p<0.05). A small-to-medium pooled effect size (OR=2.23, p<0.001) was found for the association between behavioral impulsivity and suicide attempts, and a medium-to-large pooled effect size was observed for this outcome in relation to cognitive impulsivity (OR=3.14, p<0.01). Length of time between suicide attempt and impulsivity assessment moderated the strength of the relation between impulsivity and attempts, with a large pooled effect size (OR=5.54, p<0.001) evident when the suicide attempt occurred within a month of behavioral impulsivity assessment. Studies of clinically significant NSSI temporally proximal to impulsivity assessment are needed. Longitudinal research is required to clarify the prognostic value of behavioral and cognitive impulsivity for short-term risk for self-harm.

Detecting Suicide Risk Among College Students: A Test of the Predictive Validity of the Modified Emotional Stroop Task

Detecting suicide risk among nonclinical populations is challenging due to low base rates and the help-negation tendency of at-risk individuals. The current longitudinal study investigated the predictive validity of the modified emotional Stroop task (EST) by conducting a follow-up study of 197 students who participated in a study by Chung and Jeglic (2016). The EST latencies for suicide-related cues and past suicidal behaviors were the only significant predictors of suicide risk. The findings of this study provide preliminary support for the use of the EST as part of a suicide risk screening battery that could add to the detection of suicide risk.

Insomnia and suicidal ideation and behaviors in former and current U.S. service members: Does depression mediate the relations?

Insomnia is a risk factor for Suicidal Ideation (SI) and Behavior (SB), yet the nature of the relations is unclear, including the potential mediating role of cognitive and affective/somatic symptoms of depression. It was hypothesized that the impact of insomnia on SI would be mediated through depressive symptoms and that insomnia would directly impact SB. Current and former military service members (N =405; M age =31.6 years, SD =7.3; 90.4% male, 76.5% White) who endorsed recent suicidal ideation and/or a history of suicide attempt completed measures of insomnia, depression, SI, and SB at baseline and at month 12 follow-up. Mediation models were conducted using structural equation modeling. Significant mediation from insomnia to baseline SI and month 12 SI was found through cognitive/affective depression. Insomnia was directly related to SB occurring between baseline and month 12 follow-up. These findings suggest that cognitive/affective depression mediates the association with SI but not SB. Results build on research showing the importance of depressive symptoms in SI in particular. The direct and indirect pathways from insomnia to SI/SB suggest that clinicians should be aware of these relations when treating patients reporting insomnia.

"I've Been a Long Time Leaving": The Role of Limited Skill Transferability in Increasing Suicide-Related Cognitions and Behavior in Veterinarians

Barriers to occupational mobility were investigated to determine whether they increased reported suicide-related cognitions and behavior over 12 months. This was explored in a two-wave longitudinal study. Intention to leave, depression, perceived skill transferability, and suicide-related cognitions and behavior was measured at both time points approximately 12 months apart. Results indicated that when there was a high intention to leave at T1, reported suicide-related cognitions and behavior increased over 12 months only when skill transferability to other professions was perceived to be limited. Findings support the role of limited occupational mobility in suicide-related cognitions and behavior.

Understanding Suicide Risk within the Research Domain Criteria (RDoC) Framework: Insights, Challenges, and Future Research Considerations

Suicide is a leading cause of death worldwide. Prior research has focused primarily on sociodemographic and psychiatric risk factors with little improvement in the prediction or prevention of suicidal behavior over time. The Research Domain Criteria (RDoC) may be an especially useful framework for advancing research in this area. This paper provides a brief and broad overview of research on suicidal behavior relating to each of the RDoC domains-highlighting the RDoC construct(s) where research has focused, construct(s) where research is lacking, and suggestions for future research directions. We also discuss major challenges for suicide research within the RDoC framework, including the intersection of RDoC domains, interaction of domains with the environment, incorporation of developmental stage, integration of distal and proximal processes, and inclusion of suicide-specific constructs. We conclude by underscoring important considerations for future research aimed at using the RDoC framework to study suicidal behavior and other forms of psychopathology.

Cognitive Risk and Protective Factors for Suicidal Ideation: A Two Year Longitudinal Study in Adolescence

Adolescence is a developmental period associated with heightened risk for both the onset and escalation of suicidal ideation (SI). Given that SI is a potent predictor of suicidal behavior, it is important to develop models of vulnerability for and protection against SI, particularly among young adolescents. This study examined the relative impact of several cognitive vulnerabilities, as well as protective factors, for SI among young adolescents over a 2-year interval encompassing their transition to mid-adolescence. At baseline, 324 adolescents (M = 12.39 years; SD = 0.63; 52.5 % female) completed measures of depressive symptoms, self-referent information processing biases, negative inferential style, and responses to negative affect. Further, the adolescents and their mothers were administered a diagnostic interview to assess current and past depressive disorders and SI. Over follow-up, adolescents and their mothers were administered the diagnostic interview every 12 months and adolescents completed a self-report measure inquiring about SI every 6 months to assess interviewer-rated and self-reported SI. Logistic regressions indicated that preferential endorsement of negative adjectives as self-referent (only among girls), rumination in response to negative affect, and a negative inferential style prospectively predicted SI. Additionally, young adolescents' tendency to respond to negative affect with distraction and problem-solving buffered against their risk for exhibiting SI. When these factors were entered simultaneously, preferential endorsement of negative adjectives as self-referent and the use of distraction and problem-solving skills remained the only significant prospective predictors of SI. No previous studies have examined these variables as predictors of SI, thereby highlighting their potential utility in improving the predictive validity of extant models of suicide risk and resilience.

Moving Beyond Self-Report: Implicit Associations about Death/Life Prospectively Predict Suicidal Behavior among Veterans

Reliance on self-report limits clinicians' ability to accurately predict suicidal behavior. In this study the predictive validity of an objective measure, the death/suicide Implicit Association Test (d/sIAT), was tested among psychiatrically hospitalized veterans. Following acute stabilization, 176 participants completed the d/sIAT and traditional suicide risk assessments. Participants had similar d/sIAT scores regardless of whether they had recently attempted suicide. However, d/sIAT scores significantly predicted suicide attempts during the 6-month follow-up above and beyond other known risk factors for suicidal behavior (OR = 1.89; 95% CI: 1.15-3.12; based on 1SD increase). The d/sIAT may augment the accuracy of suicide risk assessment.

Suicide Attempts and Personal Need for Structure Among Ex-Offenders

Suicide attempts were examined in relation to sociodemographic (age, gender, ethnicity), psychopathological (prior psychiatric hospitalizations, physical and sexual abuse histories), and cognitive (personal need for structure) variables among a sample of ex-offenders with substance use disorders ( N = 270). Hierarchical logistic regression was conducted to determine whether personal need for structure would significantly predict whether participants reported past suicide attempts beyond sociodemographic and psychopathological predictors. Personal need for structure and prior psychiatric hospitalizations were the only significant predictors, with higher values of these predictors increasing the likelihood of suicide attempts. Findings are consistent with a cognitive model for understanding suicide behavior, suggesting that persons with a high need for cognitive structures operate with persistent and rigid thought processes that contribute to their risk of suicide.