Comprehension of humor in primary agenesis of the corpus callosum
Abstract
Individuals with agenesis of the corpus callosum (ACC) can, in some cases, perform normally on standardized intelligence tests. Nevertheless, recent studies suggest that individuals with ACC and normal IQ scores have deficits in domains of fluid and social intelligence. Anecdotal reports from families suggest diminished appreciation of the subtleties of social interactions, and deficits in the comprehension of jokes and stories. In this research, both the cartoon and narrative joke subtests of a humor test (developed by Brownell et al. [Brownell, H., Michel, D., Powelson, J., & Gardner, H. (1983). Surprise but not coherence: sensitivity to verbal humor in right-hemisphere patients. Brain and language, 18(1), 20-27] and Bihrle et al. [Bihrle, A. M., Brownell, H. H., Powelson, J. A., & Gardner, H. (1986). Comprehension of humorous and non-humorous materials by left and right brain-damaged patients. Brain and Cognition, 5(4), 399-411]) were given to 16 adults with complete ACC (all with IQs>80) and 31 controls of similar age and IQ. Individuals with ACC performed worse than controls on the narrative joke subtest (p<.025) when VIQ was controlled. However, on the cartoon subtest the two groups were not significantly different. Covarying age, forms of IQ, narrative memory, set-switching, and literal language comprehension did not substantially alter the group difference. However, covarying comprehension of nonliteral language and proverbs eliminated the difference, suggesting a common origin for the comprehension of jokes, nonliteral language, and proverbs, most likely related to capacity for understanding second-order meanings.
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Patients with agenesis of corpus callosum show difficulties in language and social communication, and decreased volume of the corpus callosum has been found in ASD.
“Patients with agenesis of corpus callosum show difficulties in language and social communication [45, 276, 357], and decreased volume of the corpus callosum has been found in ASD (see meta-analysis in [114]).”
From Autism spectrum disorder: neuropathology and animal models (2017) · cites this paper as [45]
The results are consistent with evidence from investigations of individuals with agenesis of the corpus callosum.
“Results reported here are consistent with evidence from investigations examining individuals with agenesis of the CC, pointing to the role that this structure plays in complex brain functions.”
From A Meta-Analysis of the Corpus Callosum in Autism (2009) · cites this paper as [49]
Several cognitive and social deficits observed in autism have also been described in individuals with agenesis of the corpus callosum.
“Several cognitive and social deficits observed in autism have also been described in individuals with agenesis of the CC, although not all individuals with these deficits meet full DSM-IV-TR criteria for autistic disorder.”
From A Meta-Analysis of the Corpus Callosum in Autism (2009) · cites this paper as [49]
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“…(Badaruddin et al., 2007; Brown and Paul, 2000; Lábadi and Beke, 2017; Lau et al., 2013; Paul, 2004), deficits in pragmatic linguistic functions (Brown et al., 2005; Brown and Paul, 2000; Paul et al., 2003) and problem solving (Brown and Paul, 2000) are frequently observed in individuals whose…”
Siffredi, V., Anderson, V. A., McIlroy, A., WOOD, A. G., Leventer, R. J., & Spencer‐Smith, M. M. (2018) · Journal of the International Neuropsychological Society · doi:10.1017/s1355617717001357 · Cited by 45 · see citing works
Facial emotion recognition in agenesis of the corpus callosum
Bridgman, M. W., Brown, W. S., Spezio, M., Leonard, M. K., Adolphs, R., & Paul, L. K. (2014) · Journal of Neurodevelopmental Disorders · doi:10.1186/1866-1955-6-32 · Cited by 43 · see citing works
“There is also evidence of poor comprehension of humor and nonliteral language forms due to a bias toward literal interpretation and difficulty using context to infer meaning [16,20,21].”
BackgroundSelf-citationLearning and memory in individuals with agenesis of the corpus callosum
Paul, L. K., Erickson, R. L., Hartman, J. A., & Brown, W. S. (2016) · Neuropsychologia · doi:10.1016/j.neuropsychologia.2016.04.013 · Cited by 41 · see citing works
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“2003) and narrative humour (Brown et al. 2005).”
Verbal learning and memory in agenesis of the corpus callosum
Erickson, R. L., Paul, L. K., & Brown, W. S. (2014) · Neuropsychologia · doi:10.1016/j.neuropsychologia.2014.06.003 · Cited by 38 · see citing works
Self-citationBeauchamp, M. H., Anderson, V. A., Catroppa, C., Maller, J. J., Godfrey, C., Rosenfeld, J. V., & Kean, M. J. (2009) · Journal of Neurotrauma · doi:10.1089/neu.2009.0916 · Cited by 33 · see citing works
“…socially complex scenarios, detecting changes in prosody, and in social intelligence more generally (Badaruddin et al., 2007; Boger-Megiddo et al., 2006; Brambilla et al., 2003; Brown et al., 2005; Hrdlicka, 2008; Paul et al., 2007; Paul et al., 2006; Paul et al., 2004; Schmitz and Rezaie, 2008).”
Emotional Intelligence in Agenesis of the Corpus Callosum
Anderson, L. B., Paul, L. K., & Brown, W. S. (2017) · Archives of Clinical Neuropsychology · doi:10.1093/arclin/acx001 · Cited by 32 · see citing works
“…with respect to the comprehension of literal meaning in language, but were found to be deficient in comprehension in several domains of nonliteral language, that is, idioms, metaphors, proverbs, and humor (Paul, Van Lancker, Schieffer & Brown, 2003; Brown et al., 2005; Rehmel, Paul & Brown, 2016).”
BackgroundResultSelf-citationGiuliano, A., Saviozzi, I., Brambilla, P., Muratori, F., Retico, A., & Calderoni, S. (2017) · European Journal of Neuroscience · doi:10.1111/ejn.13527 · Cited by 32 · see citing works
“, 2003), impaired humour understanding (Brown et al., 2005), difficulty with social world comprehension and interaction (Symington et al.”
BackgroundDemopoulos, C., Arroyo, M. S., Dunn, W., Strominger, Z. A., Sherr, E. H., & Marco, E. J. (2014) · Neuropsychology · doi:10.1037/neu0000165 · Cited by 32 · see citing works
McDonald, S., Rushby, J., Dalton, K., Allen, S. K., & Parks, N. (2018) · Social Neuroscience · doi:10.1080/17470919.2017.1356370 · Cited by 29 · see citing works
Proverb comprehension in individuals with agenesis of the corpus callosum
Rehmel, J. L., Brown, W. S., & Paul, L. K. (2016) · Brain and Language · doi:10.1016/j.bandl.2016.07.001 · Cited by 29 · see citing works
Self-citationClinical Outcome of Children With Corpus Callosum Agenesis
Raile, V., Herz, N. A., Promnitz, G., Schneider, J., Tietze, A., & Kaindl, A. M. (2020) · Pediatric Neurology · doi:10.1016/j.pediatrneurol.2020.07.013 · Cited by 23 · see citing works
Brown, W. S., Anderson, L. B., Symington, M. F., & Paul, L. K. (2012) · Archives of Clinical Neuropsychology · doi:10.1093/arclin/acs052 · Cited by 23 · see citing works
Self-citationSelf-referential and social cognition in a case of autism and agenesis of the corpus callosum
Lombardo, M. V., Chakrabarti, B., Lai, M., & Baron‐Cohen, S. (2012) · Molecular Autism · doi:10.1186/2040-2392-3-14 · Cited by 20 · see citing works
“Several studies now show that individuals with AgCC have marked impairments in pragmatic aspects of language processing, including comprehension of idioms, proverbs, vocal prosody, and non-literal interpretation of humorous statements [41-44].”
BackgroundAlexithymia and somatization in agenesis of the corpus callosum
Paul, L. K., Pazienza, S., & Brown, W. S. (2021) · Social Cognitive and Affective Neuroscience · doi:10.1093/scan/nsab056 · Cited by 17 · see citing works
“…have impairments in response inhibition and switching (Marco et al., 2012), sustained attention and vigilance (Brown et al., 2020), encoding in list-learning (Erickson et al., 2014; Paul et al., 2016), and higher-order language skills (Paul et al., 2003; Brown et al., 2005a,b; Rehmel et al., 2016).”
BackgroundSelf-citationHarley, T. A., Jessiman, L. J., & MacAndrew, S. B. G. (2010) · Aphasiology · doi:10.1080/02687031003798262 · Cited by 16 · see citing works
Impairments of humour comprehension in multiple sclerosis
Ehrlé, N., Espi, P., Labire, J., Loizeau, A., Menard, C., & Bakchine, S. (2019) · Multiple Sclerosis and Related Disorders · doi:10.1016/j.msard.2019.101443 · Cited by 15 · see citing works
Everyday Executive Function and Self-Awareness in Agenesis of the Corpus Callosum
Mangum, R. W., Miller, J. S., Brown, W. S., Nolty, A., & Paul, L. K. (2021) · Journal of the International Neuropsychological Society · doi:10.1017/s1355617721000096 · Cited by 15 · see citing works
Self-citationEndocannabinoid markers in autism spectrum disorder: A scoping review of human studies
Pol, M. D., & Kolla, N. J. (2021) · Psychiatry Research · doi:10.1016/j.psychres.2021.114256 · Cited by 14 · see citing works
Renteria-Vazquez, T., Brown, W. S., Kang, C., Graves, M., Castelli, F., & Paul, L. K. (2021) · Journal of Autism and Developmental Disorders · doi:10.1007/s10803-021-04957-2 · Cited by 14 · see citing works
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Appreciation of Social Norms in Agenesis of the Corpus Callosum
Brown, W. S., Burnett, K. A., Vaillancourt, A., & Paul, L. K. (2021) · Archives of Clinical Neuropsychology · doi:10.1093/arclin/acab003 · Cited by 11 · see citing works
Self-citationAwareness of consequences in agenesis of the corpus callosum: Semantic analysis of responses.
Young, C. M., Folsom, R. C., Paul, L. K., Su, J., Mangum, R. W., & Brown, W. S. (2019) · Neuropsychology · doi:10.1037/neu0000512 · Cited by 11 · see citing works
Self-citationFunctional anatomy of idiomatic expressions
Bendersky, M., Lomlomdjian, C., Abusamra, V., Acevedo, B. E., Kochen, S., & Alba‐Ferrara, L. (2021) · Brain Topography · doi:10.1007/s10548-021-00843-3 · Cited by 11 · see citing works
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Increased persuadability and credulity in people with corpus callosum dysgenesis
Barnby, J. M., Dean, R. J., Burgess, H., Kim, J. J., Teunisse, A. K., Mackenzie, L., Robinson, G. A., Dayan, P., & Richards, L. J. (2022) · Cortex · doi:10.1016/j.cortex.2022.07.009 · Cited by 10 · see citing works
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Attention, impulsivity, and vigilance in agenesis of the corpus callosum.
Brown, W. S., Panos, A. H., & Paul, L. K. (2020) · Neuropsychology · doi:10.1037/neu0000685 · Cited by 9 · see citing works
Self-citationPawełczyk, A. M., Łojek, E., Żurner, N., Gawłowska-Sawosz, M., Gębski, P., & Pawełczyk, T. (2020) · Brain Imaging and Behavior · doi:10.1007/s11682-020-00314-6 · Cited by 7 · see citing works
“…corpus callosum (HuberOkrainec et al. 2005), in males with agenesia of the corpus callosum (Paul et al. 2003), children with agenesia of the corpus callosum (O’Brien 1994; Stickles et al. 2002; Brown and Paul 2000; Brown et al. 2005a; Brown et al. 2005b) and premature births (Reidy et al. 2013).”
BackgroundResultRodden, F. A. (2018) · Humor - International Journal of Humor Research · doi:10.1515/humor-2018-0022 · Cited by 8 · see citing works
“…in the figure but indicated directly above the deep limbic system: Figure 1) from birth, the comprehension, The neurology and psychiatry of humor 355 not only of humor, but also of non-literal language and proverbs, was reduced (compared with age- and IQ-matched controls) (Brown et al. 2005).”
ResultCannon, R. L., Lubar, J. F., Clements, J. G., HARVEY, E. M., & Baldwin, D. R. (2008) · Journal of Neurotherapy · doi:10.1080/10874200802171494 · Cited by 8 · see citing works
“Social comprehension involves interconnected, bilateral networks, and persons with agenesis in the corpus callosum performed less efficiently than controls in evaluation of narrative joke forms, narrative memory, set-switching, and use of literal language (Brown et al., 2005).”
BackgroundSocial responsiveness to inanimate entities: Altered white matter in a ‘social synaesthesia’
Simner, J., Rehme, M.-K., Carmichael, D. A., Bastin, M. E., Sprooten, E., McIntosh, A. M., Lawrie, S. M., & Zedler, M. (2016) · Neuropsychologia · doi:10.1016/j.neuropsychologia.2016.08.020 · Cited by 7 · see citing works
Agenesis of the Corpus Callosum: A Literature Review
Tu, S., Doherty, D. R., Schilmoeller, K. J., & Schilmoeller, G. L. (2009) · International review of research in mental retardation · doi:10.1016/s0074-7750(08)38007-0 · Cited by 6 · see citing works
Integration Between Cerebral Hemispheres Contributes to Defense Mechanisms
Paradiso, S., Brown, W. S., Porcerelli, J. H., Tranel, D., Adolphs, R., & Paul, L. K. (2020) · Frontiers in Psychology · doi:10.3389/fpsyg.2020.01534 · Cited by 5 · see citing works
Self-citationCase Report: Theory of Mind and Figurative Language in a Child With Agenesis of the Corpus Callosum
Melogno, S., Pinto, M. A., Scalisi, T. G., Badolato, F., & Parisi, P. (2021) · Frontiers in Psychology · doi:10.3389/fpsyg.2020.596804 · Cited by 5 · see citing works
“Actually, in isolated ACC, while there are no severe cognitive disabilities nor impairments in basic language skills, deficits have been found in pragmatic usages such as idioms, proverbs, and humor, and also in narratives or conversation, of growing importance in adolescence and adulthood (Lynn et al., 2003; Brown et…”
BackgroundSEX DIFFERENCES AND THE EFFECTS OF SEX HORMONES ON THE STRUCTURE OF THE CORPUS CALLOSUM
Khan, I. (2012) · Nottingham ePrints (University of Nottingham) · Cited by 5 · see citing works
Disorders of Forebrain Development
Sherr, E. H., & Hahn, J. S. (2017) · Elsevier eBooks · doi:10.1016/b978-0-323-37101-8.00026-6 · Cited by 4 · see citing works
Ahmed-Leitao, F., du Plessis, S. S., Konkiewitz, E. C., Spies, G., & Seedat, S. (2022) · Psychiatry Research Neuroimaging · doi:10.1016/j.pscychresns.2022.111543 · Cited by 4 · see citing works
Verbal problem-solving in agenesis of the corpus callosum: Analysis using semantic similarity.
Su, J. J., Paul, L. K., Graves, M., Turner, J., & Brown, W. S. (2023) · Neuropsychology · doi:10.1037/neu0000894 · Cited by 4 · see citing works
Self-citationRodden, F. A. (2017) · Humor - International Journal of Humor Research · doi:10.1515/humor-2016-0093 · Cited by 3 · see citing works
Imaginative elaboration in agenesis of the corpus callosum: topic modeling and perplexity
Brown, W. S., Hoard, M., Birath, B., Graves, M., Nolty, A., & Paul, L. K. (2024) · Journal of the International Neuropsychological Society · doi:10.1017/s1355617724000183 · Cited by 3 · see citing works
Self-citationAdaptive Behavior in Primary Agenesis of the Corpus Callosum
Miller, J. S., Brown, W. S., Mangum, R. W., Nolty, A., & Paul, L. K. (2024) · Research in Developmental Disabilities · doi:10.1016/j.ridd.2024.104862 · Cited by 2 · see citing works
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Contexte social et compréhension de l’humour chez des patients cérébrolésés droits
Kostova, M., Rouanet, M.-N., Jacquelin, M., Hosseini, H., & Blanchet, A. (2015) · Revue de neuropsychologie · doi:10.3917/rne.073.0167 · Cited by 2 · see citing works
Integrated cognitive retraining in agenesis of corpus callosum: a single case study
Reddy, R. P., Jamuna, R., & Hemchand, L. (2010) · Neuropsychological Trends · doi:10.7358/neur-2010-007-redd · Cited by 2 · see citing works
Balkenagenesie – Kognitive und neuropsychiatrische Symptome im Kindes- und Jugendalter
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Interhemispheric Brain Communication and the Evolution of Turn-Taking in Mammals
Ravignani, A., Lumaca, M., & Kotz, S. A. (2022) · Frontiers in Ecology and Evolution · doi:10.3389/fevo.2022.916956 · Cited by 2 · see citing works
Callosal Abnormalities in Schizophrenia
Erdoğan, D. B., Şahın, N., Özçelik, Ö., & Vırıt, O. (2023) · Springer eBooks · doi:10.1007/978-3-031-38114-0_31 · Cited by 2 · see citing works
Aesthetic judgement and appreciation in agenesis of the corpus callosum
LeFebre, N. M., Callaway, K. D., Bennett, K., Paul, L. K., & Brown, W. S. (2026) · Neuropsychologia · doi:10.1016/j.neuropsychologia.2026.109356 · Cited by 1 · see citing works
Self-citationThe Corpus Callosum Agenesis: A Case Report
Derbali, F., Ben Fradj, F., Rezgui, A., Karmani, M., Hajji, R., Ben Abdallah, O., Mzabi, A., & Laouani, C. (2015) · American Journal of Medical Case Reports · doi:10.12691/ajmcr-3-2-1 · Cited by 1 · see citing works
“The intelligence quotient (IQ) testis normal in 2/3 of cases, there may be a moderate to severe intel lectualdeficit in 1/3 of cases [6,7] Epilepsyis found in approximately 50% of patients and consists of partialor generalized seizures.”
BackgroundDisorders of Forebrain Development
Sherr, E. H., & Hahn, J. S. (2012) · Elsevier eBooks · doi:10.1016/b978-1-4377-0435-8.00023-8 · Cited by 1 · see citing works
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Agenesis of the corpus callosum: symptoms consistent with developmental disability in two siblings
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“La mise en évidence d’un déficit de la compréhen-sion de l’humour chez des patients atteints d’agénésie du corps calleux reflète justement la nécessité de cette coopé-ration hémisphérique [15].”
Minding Emotions: The Embodied Nature of
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“Another noticeable characteristic of most individuals with callosal problems is the diminished comprehension of humor (Especially certain types of more abstract humor, such as irony or word play) and also the impairment in the verbal expression of their emotional experience (Alexithymia).[11,12] According to these fin…”
BackgroundCognitive and Developmental Features of Children with Dysgenesis of the Corpus Callosum
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“Deficits are accruing in comprehension of syntax and pragmatics, including idioms, proverbs, prosody, and weak comprehension of humor and nonliteral language forms (Brown et al., 2005; Paul et al., 2003), and in phonological processing (Banich & Brown, 2000; Temple & Ilsleya, 1993).”
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Adynamic spoken language in corpus callosum dysgenesis
Barker, M. S., Knight, J. L., Dean, R. J., Richards, L. J., & Robinson, G. A. (2024) · Cortex · doi:10.1016/j.cortex.2024.07.021
Disorders of Forebrain Development
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- Authors
- Brown, W. S., Paul, L. K., Symington, M., & Dietrich, R.
- Affiliations
- University of California San Diego (US)
- Corresponding author
- Brown, Warren S.
- Venue
- Neuropsychologia
- Publisher
- Elsevier BV
- Published
- 2005-01
- Volume
- 43
- Issue
- 6
- Pages
- 906-916
- ISSN
- 0028-3932 (ISSN-L)
- OpenAlex
- W2005605516
- Cited by
- 98
- References
- 75
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 3 · 2023: 4 · 2022: 4 · 2021: 7 · 2020: 5 · 2019: 7 · 2018: 3 · 2017: 6 · 2016: 5 · 2015: 5 · 2014: 7 · 2013: 3 · 2012: 8
- FWCI
- 1.34
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Neuropsychologia (publishedVersion)
- PubMed (publishedVersion)
- CaltechAUTHORS (California Institute of Technology) (submittedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Hemispheric Asymmetry in Neuroscience
- Social Sciences › Psychology › Social Psychology › Humor Studies and Applications
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
- Keywords
- agenesis of the corpus callosum, humor comprehension, figurative language, proverbs, social intelligence, fluid intelligence, verbal intelligence, right hemisphere
- MeSH terms
- Adolescent, Adult, Analysis of Variance, Corpus Callosum, Female, Humans, Intelligence, Language, Language Tests, Functional Laterality, Male, Middle Aged, Wit and Humor as Topic, Comprehension, Agenesis of Corpus Callosum
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