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Sun M, Chen L. Prefrontal-Dependent and Gender-Specific Modulation of Guilt Emotion on Human Early Visual Perception. Behav Sci (Basel) 2025; 15:333. [PMID: 40150228 PMCID: PMC11939296 DOI: 10.3390/bs15030333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2025] [Revised: 03/03/2025] [Accepted: 03/05/2025] [Indexed: 03/29/2025] Open
Abstract
Negative emotions can shape human visual perception, which is mainly investigated using basic emotions such as fear. Whether guilt emotion, which is a negative moral emotion originating late in our evolutionary ancestry, has similar modulatory effects as basic emotions is largely unexplored. Here, we employed a dot estimation task to induce feelings of guilt and subsequently measured the Ebbinghaus illusion strength. The photos of victims' faces were projected on the central circle of the Ebbinghaus configuration. The results showed that guilt significantly strengthened the illusion effect relative to control condition, which was observed only for female participants playing with same-gender partners and reversed to the opposite pattern with disruption of left ventrolateral prefrontal cortex. The findings suggest that guilt can sculpt early visual perception in a gender-specific and prefrontal-dependent manner, thus broaden our understanding of guilt emotion and have implications for relevant neuropsychiatric disorders.
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Affiliation(s)
- Mingyang Sun
- Research Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian 116029, China
- Key Laboratory of Brain and Cognitive Neuroscience, Liaoning Province, Dalian 116029, China
| | - Lihong Chen
- Research Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian 116029, China
- Key Laboratory of Brain and Cognitive Neuroscience, Liaoning Province, Dalian 116029, China
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Siman-Tov A, Sharabi A. Siblings of individuals with intellectual and developmental disability: Relations between involvement, personal resources, loneliness, and their adjustment. JOURNAL OF INTELLECTUAL & DEVELOPMENTAL DISABILITY 2024; 49:229-240. [PMID: 39815871 DOI: 10.3109/13668250.2023.2298696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 12/19/2023] [Indexed: 01/18/2025]
Abstract
BACKGROUND The study examined relations between a number of variables regarding typically-developing adult siblings of individuals with intellectual and developmental disability: involvement in the lives of their siblings with disability, personal resources (self-efficacy and sense of coherence), loneliness, and adjustment. METHOD Participants included 99 siblings of individuals with intellectual and developmental disabilities who completed questionnaires examining involvement, personal resources (self-efficacy and sense of coherence), loneliness, and adjustment. RESULTS Results indicated that siblings who are more involved and perceive their efficacy and coherence as higher and loneliness as lower, experience higher levels of mental wellbeing and lower levels of mental distress. Personal resources also meaningfully predicted siblings' adjustment, and mediated the relations between involvement and wellbeing. CONCLUSIONS The current study can serve as a basis for professional and current knowledge for the construction of intervention programs to strengthen siblings' personal resources: efficacy and coherence as resilience factors that promote adjustment.
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Affiliation(s)
- Ayelet Siman-Tov
- Kibbutzim College of Education, Technology and the Arts, Tel Aviv, Israel
| | - Adi Sharabi
- Kibbutzim College of Education, Technology and the Arts, Tel Aviv, Israel
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Gamble RS, Henry JD, Decety J, Vanman EJ. The role of external factors in affect-sharing and their neural bases. Neurosci Biobehav Rev 2024; 157:105540. [PMID: 38211739 DOI: 10.1016/j.neubiorev.2024.105540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 01/03/2024] [Accepted: 01/05/2024] [Indexed: 01/13/2024]
Abstract
Affect-sharing, the ability to vicariously feel another person's emotions, is the primary component of empathy that is typically thought to rely on the observer's capacity to feel the emotions of others. However, external signals, such as the target's physical characteristics, have been demonstrated to influence affect-sharing in the neuroscientific literature that speaks to the underappreciated role of external factors in eliciting affect-sharing. We consider factors that influence affect-sharing, including physical cues, emotional cues, situational factors, and observer-target relationships, as well as the neural circuits involved in these processes. Our review reveals that, while neural network activation is primarily responsible for processing affect-sharing, external factors also co-activate a top-down cognitive processing network to modulate the conscious process of affect-sharing. From this knowledge, an integrative framework of external factor interactions with affect-sharing are explained in detail. Finally, we identify critical areas for future research in social and affective neuroscience, including research gaps and incorporation of ecologically valid paradigms.
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Affiliation(s)
- Roger S Gamble
- School of Psychology, The University of Queensland, St Lucia, 4072 Brisbane, QLD, Australia.
| | - Julie D Henry
- School of Psychology, The University of Queensland, St Lucia, 4072 Brisbane, QLD, Australia
| | - Jean Decety
- Department of Psychology, Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA
| | - Eric J Vanman
- School of Psychology, The University of Queensland, St Lucia, 4072 Brisbane, QLD, Australia
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António R, Guerra R, Cameron L, Moleiro C. Imagined and extended contact experiences and adolescent bystanders' behavioral intentions in homophobic bullying episodes. Aggress Behav 2023; 49:110-126. [PMID: 36332082 PMCID: PMC10099952 DOI: 10.1002/ab.22059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/10/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
Bystanders' helping interventions in bias-based bullying are rare, although they have the potential to intervene on behalf of the victim and quickly stop the aggression. Two studies tested, experimentally, the impact of adolescents' imagined (Study 1, N = 113, Mage = 16.17) and extended contact experiences (Study 2, N = 174, Mage = 15.79) on assertive bystanders' behavioral intentions in the context of homophobic bullying, an under-researched but highly detrimental behavior that emerges mainly during early adolescence. Potential mediators (empathic concern, social contagion concerns, and masculinity/femininity threat) were also examined. Results showed that female younger participants revealed more behavioral intentions to help victims of homophobic bullying when asked to imagine an interaction with an outgroup member (Study 1). Younger participants revealed less masculinity/femininity threat in the positive extended contact condition, and female participants revealed less empathic concern in the negative extended contact condition (Study 2). Overall, these findings identify specific conditions (e.g., younger females) where indirect contact interventions (i.e., extended and imagined) are likely to have a stronger impact. Age and sex differences were found to illustrate how adolescents vary in their behavioral intentions, empathic concern, and threat; and also highlight the need to further examine age and sex differences regarding responses to homophobic bullying episodes.
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Affiliation(s)
- Raquel António
- Centro de Investigação e Intervenção Social, Iscte - Instituto Universitário de Lisboa, Lisboa, Portugal.,Applied Psychology Research Center Capabilities and Inclusion (APPsyCI), Ispa- Instituto Universitário, Lisbon, Portugal
| | - Rita Guerra
- Centro de Investigação e Intervenção Social, Iscte - Instituto Universitário de Lisboa, Lisboa, Portugal
| | | | - Carla Moleiro
- Centro de Investigação e Intervenção Social, Iscte - Instituto Universitário de Lisboa, Lisboa, Portugal
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Mental Health Literacy and Stigma Among Salvadorian Youth: Anxiety, Depression and Obsessive-Compulsive Related Disorders. Child Psychiatry Hum Dev 2022; 53:48-60. [PMID: 33389389 DOI: 10.1007/s10578-020-01096-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/09/2020] [Indexed: 10/22/2022]
Abstract
This study examined (1) adolescent mental health literacy (MHL) and stigma for depression, anxiety and obsessive-compulsive and related disorders (OCRDs), and (2) demographic moderators. Participants were 383 high school students (50.9% boys) aged 11-18 years (M = 14.12, SD = 1.91) in El Salvador. Participants read vignettes of adolescents with mental health problems and reported on their beliefs about (1) what was wrong with the young person, (2) expected recovery time, (3) help-seeking beliefs and recommendations, and (4) stigma and preferred social distance associated with each condition. Results suggested that recognition of mental health conditions, especially anxiety disorders and OCRDs, was limited, although one third could recognize depression in a peer. Help-seeking attitudes were favorable. Adolescents were only somewhat willing to be affiliated with someone experiencing a mental health problem. Girls showed better MHL and lower stigma than boys. Stigma was lower among those with exposure to mental health problems.
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Carrizales A, Branje S, Lannegrand L. Disentangling between- and within-person associations between empathy and prosocial behaviours during early adolescence. J Adolesc 2021; 93:114-125. [PMID: 34740152 DOI: 10.1016/j.adolescence.2021.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 10/19/2021] [Accepted: 10/26/2021] [Indexed: 12/30/2022]
Abstract
INTRODUCTION Although empathy has been found to be related to prosocial behaviour, little is known about the longitudinal links between these two concepts during early adolescence, a unique window into developmental changes on empathy and prosocial behaviour considering the physical, cognitive, socio-emotional and contextual changes occurring during this period. Even though changes in adolescent empathy have been associated to changes in adolescent prosocial behaviour, studies examining this link on the within-person level are lacking. The present study investigated the within-adolescents longitudinal relations among empathy and prosocial behaviour. METHODS 383 French adolescents (MageT1 = 12.15, 50.4% male) reported on their empathy and prosocial behaviour each year across three years. In order to disentangle between-adolescent differences from within-adolescent processes, Random-Intercept Cross-Lagged Panel Models were applied. RESULTS At the between-person level, there was a strong positive association between empathy and prosocial behaviour. At the within-person level, adolescents who reported more empathy than usual reported higher than usual prosocial behaviour one year later. CONCLUSIONS Adolescents with higher empathy compared to their peers tended to be those who reported higher prosocial behaviour. Changes in empathy within-adolescents were related to later within-adolescents' change in prosocial behaviour.
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Affiliation(s)
- Alexia Carrizales
- Laboratory of Psychology EA3188, University Franche-Comté, Besançon, France; Laboratory of Psychology EA4139, University of Bordeaux, Bordeaux, France.
| | - Susan Branje
- Department of Youth and Family, Utrecht University, Utrecht, the Netherlands.
| | - Lyda Lannegrand
- Laboratory of Psychology EA4139, University of Bordeaux, Bordeaux, France.
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Rieffe C, O'Connor R, Bülow A, Willems D, Hull L, Sedgewick F, Stockmann L, Blijd-Hoogewys E. Quantity and quality of empathic responding by autistic and non-autistic adolescent girls and boys. AUTISM : THE INTERNATIONAL JOURNAL OF RESEARCH AND PRACTICE 2020; 25:199-209. [PMID: 32967463 PMCID: PMC7812514 DOI: 10.1177/1362361320956422] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Empathy evokes support for the person in distress, and thus strengthening social cohesion. The question is to what extent empathic reactions can be observed in autistic adolescents and autistic girls in particular, since there is evidence that they have better social skills than boys, which might hinder their recognition as autistic. We examined 193 adolescents (autistic/non-autistic boys/girls) during an in vivo task in which the experimenter hurt herself. In line with our predictions, no group or gender differences appeared related to their attention for the event; yet autistic girls and boys showed less visible emotional arousal, indicative of less affective empathy. Autistic girls and boys reacted by comforting the experimenter equally often as their non-autistic peers, but autistic boys seemed to address the problem more often than any other group; while girls (autistic and non-autistic) more often addressed the emotion of the person in need. Our findings highlight that empathic behaviour – to some extent – seems similar between autistic and non-autistic boys and girls. However, differences exist, in terms of expressed emotional arousal and gender-specific comforting styles. Autistic girls’ higher levels of emotion-focused comforting could be explained by well-developed social skills, camouflaging, or emotional investment in relationships with others.
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Affiliation(s)
- Carolien Rieffe
- Leiden University, The Netherlands.,University College London, UK
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Vanaken L, Bijttebier P, Hermans D. I like you better when you are coherent. Narrating autobiographical memories in a coherent manner has a positive impact on listeners' social evaluations. PLoS One 2020; 15:e0232214. [PMID: 32353027 PMCID: PMC7192457 DOI: 10.1371/journal.pone.0232214] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 04/09/2020] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION We all have stories to tell. The stories that prevail in our conversations frequently concern significant past personal experiences and are accordingly based on autobiographical memory retrieval and sharing. This is in line with the social function of autobiographical memory, which embodies the idea that we share memories with others to develop and maintain social relationships. However, the successful fulfilment of this social function is dependent on phenomenological properties of the memory, which are highly inter-individually different. One important individual difference is memory coherence, operationalized as narrative coherence. The objective of this study was to investigate the impact of memory coherence on the social evaluations of listeners. We hypothesized that being incoherent in the sharing of autobiographical memories, would evoke more negative social evaluations from listeners, in comparison to coherently sharing autobiographical memories. METHODS In a within-subject experimental study, 96 participants listened to four pre-recorded audio clips in which the speaker narrated about an autobiographical experience, in either a coherent or an incoherent manner. RESULTS Results were in line with our hypotheses. Participants showed more willingness to interact, more instrumental support, more positive feelings, more empathy and more trust towards those narrators who talked in a coherent manner about their autobiographical memories, as compared to those that talked in an incoherent manner. Negative feelings in the listener were evoked when the speaker talked incoherently, but especially when it concerned a positive memory. DISCUSSION Results can be explained in terms of a reduction in the attraction effect when effortful processing is increased, which is in line with the dual processing theory of impression formation. Another explanation involves the idea that coherence is necessary to establish truthfulness in communication. The clinical relevance of these findings is further illustrated in light of the relation between social support and psychological well-being.
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Affiliation(s)
- Lauranne Vanaken
- Centre for the Psychology of Learning and Experimental Psychopathology, KU Leuven, Leuven, Belgium
| | | | - Dirk Hermans
- Centre for the Psychology of Learning and Experimental Psychopathology, KU Leuven, Leuven, Belgium
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9
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Arias JA, Williams C, Raghvani R, Aghajani M, Baez S, Belzung C, Booij L, Busatto G, Chiarella J, Fu CH, Ibanez A, Liddell BJ, Lowe L, Penninx BWJH, Rosa P, Kemp AH. The neuroscience of sadness: A multidisciplinary synthesis and collaborative review. Neurosci Biobehav Rev 2020; 111:199-228. [PMID: 32001274 DOI: 10.1016/j.neubiorev.2020.01.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/17/2019] [Accepted: 01/05/2020] [Indexed: 02/06/2023]
Abstract
Sadness is typically characterized by raised inner eyebrows, lowered corners of the mouth, reduced walking speed, and slumped posture. Ancient subcortical circuitry provides a neuroanatomical foundation, extending from dorsal periaqueductal grey to subgenual anterior cingulate, the latter of which is now a treatment target in disorders of sadness. Electrophysiological studies further emphasize a role for reduced left relative to right frontal asymmetry in sadness, underpinning interest in the transcranial stimulation of left dorsolateral prefrontal cortex as an antidepressant target. Neuroimaging studies - including meta-analyses - indicate that sadness is associated with reduced cortical activation, which may contribute to reduced parasympathetic inhibitory control over medullary cardioacceleratory circuits. Reduced cardiac control may - in part - contribute to epidemiological reports of reduced life expectancy in affective disorders, effects equivalent to heavy smoking. We suggest that the field may be moving toward a theoretical consensus, in which different models relating to basic emotion theory and psychological constructionism may be considered as complementary, working at different levels of the phylogenetic hierarchy.
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Affiliation(s)
- Juan A Arias
- Department of Psychology, Swansea University, United Kingdom; Department of Statistics, Mathematical Analysis, and Operational Research, Universidade de Santiago de Compostela, Spain
| | - Claire Williams
- Department of Psychology, Swansea University, United Kingdom
| | - Rashmi Raghvani
- Department of Psychology, Swansea University, United Kingdom
| | - Moji Aghajani
- Department of Psychiatry, Amsterdam UMC, Location VUMC, GGZ InGeest Research & Innovation, Amsterdam Neuroscience, the Netherlands
| | | | | | - Linda Booij
- Department of Psychology, Concordia University Montreal, Canada; CHU Sainte-Justine, University of Montreal, Montreal, Canada
| | | | - Julian Chiarella
- Department of Psychology, Concordia University Montreal, Canada; CHU Sainte-Justine, University of Montreal, Montreal, Canada
| | - Cynthia Hy Fu
- School of Psychology, University of East London, United Kingdom; Centre for Affective Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, United Kingdom
| | - Agustin Ibanez
- Institute of Cognitive and Translational Neuroscience (INCYT), INECO Foundation, Favaloro University, Buenos Aires, Argentina; National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina; Center for Social and Cognitive Neuroscience (CSCN), School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile; Universidad Autonoma del Caribe, Barranquilla, Colombia; Centre of Excellence in Cognition and its Disorders, Australian Research Council (ARC), New South Wales, Australia
| | | | - Leroy Lowe
- Neuroqualia (NGO), Turo, Nova Scotia, Canada
| | - Brenda W J H Penninx
- Department of Psychiatry, Amsterdam UMC, Location VUMC, GGZ InGeest Research & Innovation, Amsterdam Neuroscience, the Netherlands
| | - Pedro Rosa
- Department of Psychiatry, University of Sao Paulo, Brazil
| | - Andrew H Kemp
- Department of Psychology, Swansea University, United Kingdom; Department of Psychiatry, University of Sao Paulo, Brazil; Discipline of Psychiatry, and School of Psychology, University of Sydney, Sydney, Australia.
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Hudson SKTJ, Cikara M, Sidanius J. Preference for hierarchy is associated with reduced empathy and increased counter-empathy towards others, especially out-group targets. JOURNAL OF EXPERIMENTAL SOCIAL PSYCHOLOGY 2019. [DOI: 10.1016/j.jesp.2019.103871] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Lee J, Bang YS, Min S, Ahn JS, Kim H, Cha YS, Park IS, Kim MH. Characteristics of adolescents who visit the emergency department following suicide attempts: comparison study between adolescents and adults. BMC Psychiatry 2019; 19:231. [PMID: 31349782 PMCID: PMC6660711 DOI: 10.1186/s12888-019-2213-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 07/15/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The purpose of this study was to identify the demographic and clinical characteristics of suicide attempts in adolescents who visit the emergency department compared to those of adults. METHODS This study included 149 children under the age of 18, and 1427 people in the age of 19-65 who came to the emergency department with suicide attempt from 2009 to 2015. We compare sociodemographic, clinical, and suicide attempt-related characteristics through Chi-square test and logistic regression analysis to evaluate the difference between two groups. RESULTS In adolescents, suicide attempters had more number of previous suicide attempt history than adults. Adolescents used more non-lethal method such as poisoning of over the counter drugs and had about 5 times higher odds ratio in suicide attempts with analgesics. The motivation of suicide attempt among adolescents was more related with interpersonal problems but less with financial or illness-related problems. The intention of suicide attempt in adolescents was less serious and lethal compared to adults. CONCLUSION Suicide attempts among adolescents had showed different from adults in method, motivation and intention. Considering the characteristics of suicide attempt among adolescent, it is necessary to keep close attention to adolescent's suicide attempters and develop the customized intervention program to prevent the suicide attempt in this groups.
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Affiliation(s)
- Jinhee Lee
- 0000 0004 0470 5454grid.15444.30Department of Psychiatry, Yonsei University Wonju College of Medicine, 20 Ilsan-ro, Wonju, 26426 Republic of Korea
| | - Yeon Sik Bang
- 0000 0004 0470 5454grid.15444.30Department of Psychiatry, Yonsei University Wonju College of Medicine, 20 Ilsan-ro, Wonju, 26426 Republic of Korea
| | - Seongho Min
- 0000 0004 0470 5454grid.15444.30Department of Psychiatry, Yonsei University Wonju College of Medicine, 20 Ilsan-ro, Wonju, 26426 Republic of Korea
| | - Joung-Sook Ahn
- 0000 0004 0470 5454grid.15444.30Department of Psychiatry, Yonsei University Wonju College of Medicine, 20 Ilsan-ro, Wonju, 26426 Republic of Korea
| | - Hyun Kim
- 0000 0004 0470 5454grid.15444.30Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Yong-Sung Cha
- 0000 0004 0470 5454grid.15444.30Department of Emergency Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - In-Suk Park
- Yonsei Soul Psychiatric Clinic, Wonju, South Korea
| | - Min-Hyuk Kim
- Department of Psychiatry, Yonsei University Wonju College of Medicine, 20 Ilsan-ro, Wonju, 26426, Republic of Korea.
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Sex related biases for attending to object color versus object position are reflected in reaction time and accuracy. PLoS One 2019; 14:e0210272. [PMID: 30625223 PMCID: PMC6326485 DOI: 10.1371/journal.pone.0210272] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 12/19/2018] [Indexed: 11/19/2022] Open
Abstract
Processing of visual features related to objects and space relations occurs within separate cortical streams that interact with selective attention. Such separation has implications for cognitive development because the perception of ‘what’ and ‘where’ provide a neural foundation for the development of aspects of higher cognition. Thus, a small attentional bias in early development for attending to one aspect over the other might influence subsequent higher cognitive processing in tasks involving object recognition and space relations. We examined 134 men and women for evidence of an inherent sex-related bias for attending to basic perceptual features related to object discrimination versus object position. Each stimulus consisted of a circle located in one of 9 positions within a surrounding frame. Circles were one of three shades of blue or red. These stimuli were used in a match-to-sample paradigm where participants were required to match circles on the basis of color or spatial position. The first stimulus appeared in the center of the screen for 400 msec and the matching stimulus subsequently appeared for 400 msec oriented 5 degrees to the right or left of center. The same stimuli were used to test the perception of color and position, with order of testing counterbalanced across participants. Results showed significantly longer reaction times in females compared with males, with better accuracy to discriminate color when that color was tested before position. Males showed better accuracy when object position was tested before color discrimination. A second experiment employed the same procedure, but enhanced selective attention by adding an endogenous cue that predicted the right or left location for the appearance of the matching stimulus. This manipulation greatly attenuated the sex differences in reaction time and accuracy compared to Experiment 1, suggesting that the sex-related attentional biases are strongly coupled to bottom-up processing. Overall, the sex related attentional biases toward processing object characteristics versus object position location suggest a differential manifestation of biased competition between the weighted systems of dorsal and ventral stream processing. Results are discussed with how a developmental bias in the processing objects versus space relations may contribute to adult cognitive sex differences in humans and animals.
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