{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,26]],"date-time":"2025-08-26T06:26:39Z","timestamp":1756189599196,"version":"3.38.0"},"reference-count":40,"publisher":"Cambridge University Press (CUP)","issue":"7","license":[{"start":{"date-parts":[[2024,5,16]],"date-time":"2024-05-16T00:00:00Z","timestamp":1715817600000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Int Neuropsychol Soc"],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S1355617724000183_as1\"><jats:title>Objective:<\/jats:title><jats:p>Previous studies have found deficits in imaginative elaboration and social inference to be associated with agenesis of the corpus callosum (ACC; Renteria-Vasquez et al., 2022; Turk et al., 2009). In the current study, Thematic Apperception Test (TAT) responses from a neurotypical control group and a group of individuals with ACC were used to further study the capacity for imaginative elaboration and story coherence.<\/jats:p><\/jats:sec><jats:sec id=\"S1355617724000183_as2\"><jats:title>Method:<\/jats:title><jats:p>Topic modeling was employed utilizing Latent Diritchlet Allocation to characterize the narrative responses to the pictures used in the TAT. A measure of the difference between models (perplexity) was used to compare the topics of the responses of individual participants to the common core model derived from the responses of the control group. Story coherence was tested using sentence-to-sentence Latent Semantic Analysis.<\/jats:p><\/jats:sec><jats:sec id=\"S1355617724000183_as3\"><jats:title>Results:<\/jats:title><jats:p>Group differences in perplexity were statistically significant overall, and for each card individually (<jats:italic>p<\/jats:italic> &lt; .001). There were no differences between the groups in story coherence.<\/jats:p><\/jats:sec><jats:sec id=\"S1355617724000183_as4\"><jats:title>Conclusions:<\/jats:title><jats:p>TAT narratives from persons with ACC were normally coherent, but more conventional (i.e., more similar to the core text) compared to those of neurotypical controls. Individuals with ACC can make conventional social inferences about socially ambiguous stimuli, but are restricted in their imaginative elaborations, resulting in less topical variability (lower perplexity values) compared to neurotypical controls.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s1355617724000183","type":"journal-article","created":{"date-parts":[[2024,5,16]],"date-time":"2024-05-16T09:48:29Z","timestamp":1715852909000},"page":"643-650","source":"Crossref","is-referenced-by-count":3,"title":["Imaginative elaboration in agenesis of the corpus callosum: topic modeling and perplexity"],"prefix":"10.1017","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6142-5588","authenticated-orcid":false,"given":"Warren 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