Behavioural correlates of atypical brain morphology in individuals with high levels of autistic-like traits

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Hill, Simon




The current study investigated whether atypical brain morphology extends to individuals in the normal population who are high in autistic-like traits. It was hypothesised that autistic-like traits would be negatively correlated with hemispheric lateralization and communication. Additionally, males and individuals enrolled in mathematically intensive university programs were expected to display higher levels of autistic-like traits than females and individuals enrolled in less mathematically intensive programs. A sample of 130 university students completed the AQ questionnaire and three
measures of brain morphology to assess autistic-like traits as well as hemispheric lateralization and communication. Results indicated that autistic-like traits were not associated with measures of hemispheric lateralization or communication. Only group differences based on university program yielded significant results on the AQ. It was concluded that the measures were not sensitive enough to detect atypical brain morphology differences in the present sample or that these differences do not exist in subclinical populations.


PSYCHOLOGY Developmental




Carleton University

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