Cited by 192Neurogenesis and neuroplasticity mechanismsMemory and Neural MechanismsNeuroscience and Neuropharmacology Research

Effects of environment on morphology of rat cerebral cortex and hippocampus

Diamond, Marian C., Ingham, Carol A., Johnson, Ruth E., Bennett, Edward L., Rosenzweig, Mark R.·1976·Journal of Neurobiology

Abstract

Cortical depth differences were found between male rats exposed to enriched or impoverished environmental conditions for successively shorter times, i.e., for 15 days (from 25 to 40 days of age), for seven days (25 to 32 days of age), and for four days (26 to 30 or 60 to 64 days of age). If the experiments began at weaning (at 25 days of age), the cortical depth changes were caused primarily by impoverishment. If the animals were young adults (60 days of age), upon entering their respective conditions, the cortical changes were induced by enrichment. No cortical depth differences were found between enriched and impoverished rats after one day of differential experience, from 60 to 61 days of age. In every age group and for every duration, except for the one day group, the dorsal-medial segment of the occipital cortex responded to the environmental conditions. No significant hippocampal depth differences were noted between enriched and impoverished animals.

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Crossref · 10.1002/neu.480070108

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  • Exposure to enriched environment strongly promotes neuronal plasticity, enhancing learning and memory and leading to improved functional recovery after CNS lesion or disease.

    “Since the seminal work by Rosenzweig and coworkers (see Rosenzweig and Bennett (1996) for review), it is known that exposure to enriched sensory, motor, cognitive and social stimulation (i.e.enriched environment) strongly promotes neuronal plasticity, enhancing learning and memory and leading to improved functional recovery after different kinds of CNS lesion or disease (Bennet et al., 1969;Diamon”

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Authors
Diamond, M. C., Ingham, C. A., Johnson, R. E., Bennett, E. L., & Rosenzweig, M. R.
Affiliations
University of California, Berkeley (US)
Venue
Journal of Neurobiology
Publisher
Wiley
Published
1976-01
Volume
7
Issue
1
Pages
75-85
ISSN
  • 0022-3034 (ISSN-L)
  • 1097-4695
OpenAlex
W2001123589
Cited by
192
References
17
Citations by year
2026: 2 · 2025: 1 · 2024: 1 · 2023: 2 · 2022: 4 · 2021: 3 · 2020: 2 · 2019: 3 · 2018: 5 · 2017: 6 · 2016: 6 · 2015: 8 · 2014: 7 · 2013: 6 · 2012: 12
FWCI
2.99
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neurobiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
environmental enrichment, impoverished environment, cortical depth, hippocampus, cerebral cortex morphology, occipital cortex, rat brain development
MeSH terms
Age Factors, Animals, Cerebral Cortex, Hippocampus, Male, Social Environment, Social Isolation, Rats

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