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Cited by 527

The DOI matches its Crossref record; 80 of the 80 references it cites were found in a registry or an index.

Sex Differences in Human Brain Morphometry and Metabolism: An In Vivo Quantitative Magnetic Resonance Imaging and Positron Emission Tomography Study on the Effect of Aging

Murphy, Declan G. M.·1996·Archives of General Psychiatry

Abstract

BACKGROUND: There are significant age and sex effects in cognitive ability and brain disease. However, sex differences in aging of human brain areas associated with nonreproductive behavior have not been extensively studied. We hypothesized that there would be significant sex differences in aging of brain areas that subserve speech, visuospatial, and memory function. METHODS: We investigated sex differences in the effect of aging on human brain morphometry by means of volumetric magnetic resonance imaging and on regional cerebral metabolism for glucose by positron emission tomography. In the magnetic resonance imaging study, we examined 69 healthy right-handed subjects (34 women and 35 men), divided into young (age range, 20 to 35 years) and old (60 to 85 years) groups. In the positron emission tomography study, we investigated 120 healthy right-handed subjects (65 women and 55 men) aged 21 to 91 years. RESULTS: In the magnetic resonance imaging study, age-related volume loss was significantly greater in men than women in whole brain and frontal and temporal lobes, whereas it was greater in women than men in hippocampus and parietal lobes. In the positron emission tomography study, significant sex differences existed in the effect of age on regional brain metabolism, and asymmetry of metabolism, in the temporal and parietal lobes, Broca's area, thalamus, and hippocampus. CONCLUSIONS: We found significant sex differences in aging of brain areas that are essential to higher cognitive functioning. Thus, our findings may explain some of the age-sex differences in human cognition and response to brain injury and disease.

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Metadata

Authors
Murphy, D. G. M.
Venue
Archives of General Psychiatry
Published
1996-07-01
Volume
53
Issue
7
Pages
585
ISSN
0003-990X (ISSN-L)
OpenAlex
W2102405898
Cited by
527
References
80
FWCI
12.64
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Sex Differences in Human Brain Morphometry and Metabolism: An In Vivo Quantitative Magnetic Resonance Imaging and Positron Emission Tomography Study on the Effect of Aging. https://app.cochat.ai/papers/10.1001/archpsyc.1996.01830070031007
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Murphy, D. G. M. (1996). Sex Differences in Human Brain Morphometry and Metabolism: An In Vivo Quantitative Magnetic Resonance Imaging and Positron Emission Tomography Study on the Effect of Aging. Archives of General Psychiatry. https://doi.org/10.1001/archpsyc.1996.01830070031007

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