Date of Award

8-2022

Document Type

Dissertation

Degree Name

Doctor of Psychology (PsyD)

Department

Graduate Department of Clinical Psychology

First Advisor

Glena Andrews, Ph.D.

Second Advisor

Lynn K. Paul, Ph.D.

Third Advisor

Elizabeth Hamilton, Ph.D.

Abstract

Agenesis of the corpus callosum (AgCC) is a congenital brain malformation that affects the area of the brain responsible for interhemispheric transfer of information (Paul, 2011). Individuals with AgCC tend to have specific deficits resulting from reduced interhemispheric transfer for sensory-motor information, cognitive processing speed, and deficits in complex reasoning and novel problem-solving (Brown & Paul, 2019; Mangum, 2018; Miller et al., 2018). There are indications that those with AgCC also struggle with communication skills during early stages of life (Badderudin et al., 2007) and social interactions during adolescence (Paul et al., 2007). The purpose of this study is to discover deficits or delays that may occur in communication, socialization, and daily living skills from early childhood through mid-adolescence. The Vineland-3 Comprehensive Interview Form was utilized with parents of 63 children and adolescents who have a formal diagnosis of AgCC between the ages of 28-195 months. Results of the cross-sectional study showed generalized delays in the development of Communication, Daily Living Skills, and Socialization skills when compared to Vineland 3 norm groups. Although gender alone was not found to effect skills, several interactions between gender and age groups were noted. Children and adolescents with AgCC are more likely to display developmental delays and early intervention is crucial in order to develop compensatory strategies and/or techniques.

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