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An fMRI Study of Sex Differences in Regional Activation to a Verbal and a Spatial Task
Open accessAbstract
Sex differences in cognitive performance have been documented, women performing better on some phonological tasks and men on spatial tasks. An earlier fMRI study suggested sex differences in distributed brain activation during phonological processing, with bilateral activation seen in women while men showed primarily left-lateralized activation. This blood oxygen level-dependent fMRI study examined sex differences (14 men, 13 women) in activation for a spatial task (judgment of line orientation) compared to a verbal-reasoning task (analogies) that does not typically show sex differences. Task difficulty was manipulated. Hypothesized ROI-based analysis documented the expected left-lateralized changes for the verbal task in the inferior parietal and planum temporal regions in both men and women, but only men showed right-lateralized increase for the spatial task in these regions. Image-based analysis revealed a distributed network of cortical regions activated by the tasks, which consisted of the lateral frontal, medial frontal, mid-temporal, occipitoparietal, and occipital regions. The activation was more left lateralized for the verbal and more right for the spatial tasks, but men also showed some left activation for the spatial task, which was not seen in women. Increased task difficulty produced more distributed activation for the verbal and more circumscribed activation for the spatial task. The results suggest that failure to activate the appropriate hemisphere in regions…
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From Factors Related to Mean Score Group Differences on Cognitive Ability Tests: A Systematic Review (2025) · cites this paper as Gur et al., 2000
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BackgroundSelf-citation
Metadata
- Authors
- Gur, R. C., Alsop, D., Glahn, D., Petty, R., Swanson, C. L., Maldjian, J. A., Turetsky, B. I., Detre, J. A., Gee, J., & Gur, R. E.
- Affiliations
- University of Pennsylvania (US)
- Venue
- Brain and Language
- Publisher
- Elsevier BV
- Published
- 2000-09
- Volume
- 74
- Issue
- 2
- Pages
- 157-170
- ISSN
- 0093-934X (ISSN-L)
- OpenAlex
- W1963754370
- Cited by
- 352
- References
- 46
- Citations by year
- 2026: 7 · 2025: 8 · 2024: 11 · 2023: 9 · 2022: 6 · 2021: 5 · 2020: 24 · 2019: 16 · 2018: 13 · 2017: 13 · 2016: 18 · 2015: 18 · 2014: 12 · 2013: 16 · 2012: 17
- FWCI
- 5.59
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Brain and Language (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- Funders
- National Institute of Mental Health (MH 43880, MH-42191)
- National Center for Research Resources (MO1-RR 0040, M01RR000040)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Hemispheric Asymmetry in Neuroscience
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Sex and Gender in Healthcare
- Keywords
- sex differences, hemispheric lateralization, spatial reasoning, verbal reasoning, analogy, task difficulty, inferior parietal cortex, planum temporale, phonological processing
- MeSH terms
- Brain, Cognition, Female, Humans, Functional Laterality, Magnetic Resonance Imaging, Male, Neuropsychological Tests, Sex Factors, Space Perception, Tomography, Emission-Computed, Verbal Behavior
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