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Full-Text Articles in Child Psychology
Examining Child Sex As A Moderator Of The Relationship Between Cortisol Reactivity And Symptoms Over Time, Andrew R. Daoust
Examining Child Sex As A Moderator Of The Relationship Between Cortisol Reactivity And Symptoms Over Time, Andrew R. Daoust
Electronic Thesis and Dissertation Repository
Females’ reactivity to stress appears to be closely tied to internalizing symptoms, while males who are under-reactive may be at risk for externalizing problems. Little is known about when such differences emerge, despite possible implications for early prevention. Cortisol reactivity to a laboratory stressor was assessed in 409 three-year-old children along with children’s parent-reported internalizing and externalizing symptoms, which were re-collected at child ages 5 and 8. Multilevel modelling was used to investigate whether the relationship between cortisol reactivity and symptoms differed between boys and girls longitudinally. Over time, girls with lower cortisol reactivity showed a decrease in depressive symptoms …
Girls’ Internalizing Symptoms And White Matter Tracts In Cortico-Limbic Circuitry, Ola Mohamed Ali
Girls’ Internalizing Symptoms And White Matter Tracts In Cortico-Limbic Circuitry, Ola Mohamed Ali
Electronic Thesis and Dissertation Repository
Dysfunction in cortico-limbic circuitry is implicated in internalizing disorders, but less is known about whether structural abnormalities precede disorder, thus potentially marking risk. I therefore examined associations between white matter tract integrity in cortico-limbic circuitry at age 7, obtained using Diffusion Tensor Imaging, and concurrent and longitudinal patterns of internalizing symptoms, over a 5-year period, in 42 typically developing girls. Using Automated Fiber Quantification, diffusion properties were examined at multiple points along tract length (cf., an average diffusion measure of the entire tract). Concurrent internalizing symptoms were associated with reduced fractional anisotropy in segments of the cingulum bundle and uncinate …
Relating Sensory Sensitivity And Repetitive Behaviours In Autism Spectrum Disorders, Samantha E. Schulz
Relating Sensory Sensitivity And Repetitive Behaviours In Autism Spectrum Disorders, Samantha E. Schulz
Electronic Thesis and Dissertation Repository
The heterogenous expression of Autism Spectrum Disorder (ASD) complicates our etiological understanding of the disorder. By focusing on the most commonly-reported symptom of ASD, namely sensory processing dysfunction, this project attempts to determine the underlying factors of autism-related restricted interests and repetitive behaviours (RRBs). The specific aims of this project are to examine the relationship between sensory sensitivity and RRBs and to compare current questionnaire measures of sensory processing issues to more objective measures, specifically, a psychophysical behavioural task of visual sensitivity. A positive relationship was found between sensitivity and RRBs in both autistic children and their TD peers. Furthermore, …