Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.650770
Title: An investigation of the neuropsychological and neurobiological basis of conduct disorder problems in adolescence and the moderating effects of gender and callous-unemotional traits
Author: Cattrell, Anna Louise
ISNI:       0000 0004 5357 514X
Awarding Body: King's College London (University of London)
Current Institution: King's College London (University of London)
Date of Award: 2014
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Abstract:
This thesis aimed to identify the clinical, personality, neuropsychological and neurobiological characteristics associated with conduct disorder (CD) problems in a large cohort of community-recruited adolescents. Differences in these characteristics between males and females, and between those with high versus average ‘callous-unemotional’ (CU) traits, were examined. The development of a proxy measure of CU is reported. This was used to explore whether high CU can be used to identify a sub-group of CD youths who differ from their peers in terms of clinical, personality and behavioural phenotypes in this community-recruited sample. Differences in emotional reactivity were investigated using an fMRI paradigm comparing neural responses to angry face stimuli. ‘Cool’ (cognitive) executive function was investigated using an fMRI task assessing motor response inhibition to a visually presented ‘stop-signal’ and a neuropsychological task assessing working memory. The third fMRI study explored ‘hot’ (motivation/affect) executive function using a paradigm investigating reward sensitivity to monetary values at different stages of reward processing (anticipation and outcome) and a neuropsychological task that investigated risk taking through a gambling paradigm. Between-group differences were investigated as a function of CD problems, gender and CU traits. In terms of clinical measures males and females with CD were similar, although considering both CU and gender, in addition to CD, revealed differences in temperament. Emotional reactivity in the amygdala differed as a function of CD status in males, and CU traits differentiated a group of females who show heightened reactivity to negative stimuli. In terms of executive function there were differences as a function of CD and gender for both hot and cool executive function at the neurobiological and behavioural level. The findings are discussed in relation to current theories underlying the development of CD.
Supervisor: Loth, Eva; Happe, Francesca Gabrielle Elizabeth; Schumann, Gunter Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.650770  DOI: Not available
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