The perceptual-mnemonic/feature conjunction model of perirhinal cortex function.

The perirhinal cortex was once thought to be "silent cortex", virtually ignored by researchers interested in the neurobiology of learning and memory. Following studies of brain damage associated with cases of amnesia, perirhinal cortex is now widely regarded as part of a "medial temporal lobe (MTL) memory system". This system is thought to be more or less functionally homogeneous, having a special role in declarative memory, and making little or no contribution to other functions such as perception. In the present article, we summarize an alternative view. First, we propose that components of the putative MTL system such as the hippocampus and perirhinal cortex have distinct and dissociable functions. Second, we provide evidence that the perirhinal cortex has a role in visual discrimination. In addition, we propose a specific role for perirhinal cortex in visual discrimination: the contribution of complex conjunctive representations to the solution of visual discrimination problems with a high degree of "feature ambiguity". These proposals constitute a new view of perirhinal cortex function, one that does not assume strict modularity of function in the occipito-temporal visual stream, but replaces this idea with the notion of a hierarchical representational continuum.     

On broadening the cognitive, motivational, and sociostructural scope of theorizing about gender development and functioning: comment on Martin, Ruble, and Szkrybalo (2002)

In their article on gender development, C. L. Martin, D. N. Ruble, and J. Szkrybalo (see record 2002-18663-003) contrasted their conception of gender development with that of social cognitive theory. The authors of this commentary correct misrepresentations of social cognitive theory and analyze the conceptual and empirical status of Martin et al.'s (2002) theory that gender stereotype matching is the main motivating force of gender development. Martin et al. (2002) based their claim for the causal primacy of gender self-categorization on construal of gender discrimination as rudimentary self-identity, equivocal empirical evidence, and dismissal of discordant evidence because of methodological deficiencies. The repeated finding that gendered preferences and behavior precede emergence of a sense of self is discordant with their theory. Different lines of evidence confirm that gender development and functioning are socially situated, richly contextualized, and conditionally manifested rather than governed mainly by an intrinsic drive to match stereotypic gender self-conception.     

The development of the Social Bullying Involvement Scales

This study reports findings of a newly developed measure of social bullying based on Underwood's [2003] framework of social aggression. The Social Bullying Involvement Scales (SBIS) consist of four scales measuring the extent to which children experience social victimization, engage in social bullying, witness social bullying, and intervene in social bullying. The sample consisted of 636 participants (311 females and 325 males, age range 11-16 years; 71% White). Confirmatory factor analysis supported a revised version of Underwood's framework for each of the four participant role scales. Internal consistencies for each scale ranged from .93 to .97. Results revealed that social victimization was related to an increase in anxiety, depressive, and externalizing behaviors. Social bullying was associated with an increase in general externalizing behaviors only. Social witnessing was moderately correlated with depression scores. Intervening in social bullying was not linked with psychological maladjustment or externalizing behaviors. The SBIS provides a comprehensive measure of social victimization, social bullying, social witnessing, and social intervening.     

Emotion Dysregulation and Eating Disorder Symptoms: Examining Distinct Associations and Interactions in Adolescents

Research on Child and Adolescent Psychopathology - Emotion dysregulation has been posited as a key transdiagnostic factor of mental health difficulties, including eating disorders. However, how...     

The impact of pressured information management on boys' and girls' psychological functioning

This study involving 463 adolescents examined the impact of pressured information management with mothers on boys' and girls' subsequent psychological functioning. This novel concept of pressured information management involved both pressured secrecy and disclosure and was defined as the degree to which adolescents feel they have no choice but to engage in these strategies. While pressured secrecy was especially aversive for girls, yielding associations with both depression and anxiety, it was related to stress only in boys. Pressured disclosure was less detrimental, and in fact, had a positive influence on girls' anxiety over time. Alternate models for these effects were considered but not supported by the data. Together, these findings highlight the importance of considering teens' reasons for engaging in different information management strategies and suggest adolescents who feel they have no choice but to keep secrets or disclose information to mothers may experience psychological consequences that are gender-specific.     

Cyber Victimization and Internalizing Difficulties: The Mediating Roles of Coping Self-Efficacy and Emotion Dysregulation

Cyber victimization has consistently been associated with internalizing difficulties in adolescents. However, the underlying psychological mechanisms linking this relationship have not been adequately examined. The present study aimed to investigate the mediational roles of coping self-efficacy and emotion dysregulation in the relationships between cyber victimization with depression and social anxiety. Participants were 459 students (199 girls) from independent middle-class schools in grades 8 (M _age ?=?13 years 9 months) and 10 (M _age ?=?15 years 7 months). They completed a self-report questionnaire about cyberbullying participation, internalizing symptoms, coping self-efficacy, and emotion dysregulation. Structural equation modeling revealed that most domains of coping self-efficacy and emotion dysregulation partially mediated the relationship between cyber victimization and depression, and fully mediated the relationship between cyber victimization and social anxiety. The results highlight the importance of targeting these mediating factors in intervention programs to reduce the negative impact of cyber victimization on adolescents.     

A meta-analysis of the relationship between moral disengagement and bullying roles in youth

Over the last several years, researchers have become increasingly interested in the influence of moral factors on bullying behaviors. This is the first meta-analytic review to exclusively examine the relationship between moral disengagement (MD) and the key bullying roles of bully, victim, defender, and bystander. Forty-seven independent samples examining a total of 43,809 children/adolescents (aged 7–19) were included in this meta-analysis. Results indicated a positive relationship between MD and bullying (r = 0.31; 95% CI [0.27, 0.34]), MD and victimization (r = 0.08; 95% CI [0.05, 0.12]), and a negative relationship between MD and defending (r = −0.11; 95% CI [−0.17, −0.04]). No significant relationship was found for MD and bystanding behavior. Moderators of bullying type (traditional vs. cyberbullying), reporting type (self vs. peer report), age, and gender were included in the analyses. The results are discussed in the context of relevant literature with particular emphasis on the importance of distinguishing between guilty and unconcerned bystanders, and the significant overlap between bullying and victimization in the cyber context.     

Influence of gender constancy and social power on sex-linked modeling

Competing predictions derived from cognitive-developmental theory and social learning theory concerning sex-linked modeling were tested. In cognitive-developmental theory, gender constancy is considered a necessary prerequisite for the emulation of same-sex models, whereas according to social learning theory, sex-role development is promoted through a vast system of social influences with modeling serving as a major conveyor of sex role information. In accord with social learning theory, even children at a lower level of gender conception emulated same-sex models in preference to opposite-sex ones. Level of gender constancy was associated with higher emulation of both male and female models rather than operating as a selective determinant of modeling. This finding corroborates modeling as a basic mechanism in the sex-typing process. In a second experiment we explored the limits of same-sex modeling by pitting social power against the force of collective modeling of different patterns of behavior by male and female models. Social power over activities and rewarding resources produced cross-sex modeling in boys, but not in girls. This unexpected pattern of cross-sex modeling is explained by the differential sex-typing pressures that exist for boys and girls and socialization experiences that heighten the attractiveness of social power for boys.     

Social cognitive theory of gender development and differentiation

Human differentiation on the basis of gender is a fundamental phenomenon that affects virtually every aspect of people's daily lives. This article presents the social cognitive theory of gender role development and functioning. It specifies how gender conceptions are constructed from the complex mix of experiences and how they operate in concert with motivational and self-regulatory mechanisms to guide gender-linked conduct throughout the life course. The theory integrates psychological and sociostructural determinants within a unified conceptual structure. In this theoretical perspective, gender conceptions and roles are the product of a broad network of social influences operating interdependently in a variety of societal subsystems. Human evolution provides bodily structures and biological potentialities that permit a range of possibilities rather than dictate a fixed type of gender differentiation. People contribute to their self-development and bring about social changes that define and structure gender relationships through their agentic actions within the interrelated systems of influence.