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Attention, impulsivity, and vigilance in agenesis of the corpus callosum

Brown, Warren S. and Panos, Amanda and Paul, Lynn K. (2020) Attention, impulsivity, and vigilance in agenesis of the corpus callosum. Neuropsychology, 34 (7). pp. 744-749. ISSN 1931-1559. PMCID PMC7989585. doi:10.1037/neu0000685.

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Objective: Questions regarding the role of the corpus callosum in attention are raised by the reports of attention problems in some persons with agenesis of the corpus callosum (AgCC), as well as by abnormalities in callosal size in persons with attention-deficit/hyperactive disorder. The current study assessed inattention, impulsivity, and vigilance in individuals with AgCC. Method: These domains of attention were assessed using the Conners’ Continuous Performance Test II in 18 older adolescents and adults (ages 16–52) with complete AgCC and normal intelligence (full scale intelligence quotient > 80). Scores were converted to T scores using age-specific norms and assessed for departure from the normative sample. Results: Scores were significantly elevated in older adolescents with AgCC for errors of commission (p = .050, d = 0.55) and detectability (p = .03, d = 0.58). Older adolescents were worse than adults for commissions (p = .06, ηp² = .201) and detectability (p = .03, ηp² = .273). Also, male individuals had significantly higher (worse) scores than did female in vigilance (p = .01, ηp² = .337). Conclusion: These results suggest moderate levels of difficulties in sustained attention in AgCC, particularly in maintaining response inhibition and in vigilance, that are modulated by age and sex.

Item Type:Article
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URLURL TypeDescription
Brown, Warren S.0000-0001-6142-5588
Panos, Amanda0000-0001-8151-2793
Paul, Lynn K.0000-0002-3128-8313
Additional Information:© 2020 American Psychological Association (APA).
Issue or Number:7
PubMed Central ID:PMC7989585
Record Number:CaltechAUTHORS:20201105-091949816
Persistent URL:
Official Citation:Brown, W. S., Panos, A., & Paul, L. K. (2020). Attention, impulsivity, and vigilance in agenesis of the corpus callosum. Neuropsychology, 34(7), 744–749.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106448
Deposited By: Tony Diaz
Deposited On:05 Nov 2020 17:50
Last Modified:16 Nov 2021 18:54

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