Publications by authors named "S H Pegg"
More work is needed to establish the validity of the Alternative Model of Personality Disorders (AMPD) in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). Acceptance of the AMPD as the primary model of personality disorder requires identifying neurocognitive validators of AMPD-defined personality functioning and demonstrating superiority of the AMPD over the traditional categorical model of personality disorder. It is also important to establish the utility of the AMPD in a developmental context given evidence that personality disorder emerges in adolescence.
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- Peer relationships are crucial in adolescence, and this study explores how social media use impacts teens' emotional health, focusing on brain function differences.
- It involved 145 adolescents aged 14-17, assessing social media use and emotional responses through ecological momentary assessment and tasks designed to gauge brain activity related to rewards.
- Findings showed that social media use correlated with lower positive emotion, particularly in those with less brain responsiveness to social rewards, with the effect being more pronounced in females.
Individual differences in reward functioning have been associated with numerous disorders in adolescence. Given relations with multiple forms of psychopathology, it is unclear whether these associations are disorder specific or reflective of shared variance across multiple disorders. In a sample of adolescents (N = 418), we examined associations between neural and self-reported indices of early reward functioning (age 12) with different levels of a hierarchical psychopathology model assessed later in adolescence (age 18).
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- The study examines how emotional fluctuations relate to depression in teens, focusing on those at risk versus those currently depressed.
- It involved 147 adolescents aged 14 to 17, assessing their positive and negative emotions multiple times a day over a week.
- Findings indicated that depressed adolescents had more consistent negative emotions and less positive feelings, while no significant differences were found between never-depressed youth at different risk levels, highlighting the need for further research on preventive measures.