Cited by 43Visual perception and processing mechanismsNeurogenesis and neuroplasticity mechanismsNeuroscience and Neuropharmacology Research

Brief dark exposure restored ocular dominance plasticity in aging mice and after a cortical stroke

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Stodieck, Sophia Katharina, Greifzu, Franziska, Goetze, Bianka, Schmidt, Karl-Friedrich, Löwel, Siegrid·2014·Experimental Gerontology

Abstract

In the primary visual cortex (V1), monocular deprivation (MD) induces a shift in the ocular dominance (OD) of binocular neurons towards the open eye (Wiesel and Hubel, 1963; Gordon and Stryker, 1996). In V1 of C57Bl/6J mice, this OD-plasticity is maximal in juveniles, declines in adults and is absent beyond postnatal day (PD) 110 (Lehmann and Löwel, 2008) if mice are raised in standard cages. Since it was recently shown that brief dark exposure (DE) restored OD-plasticity in young adult rats (PD70-100) (He et al., 2006), we wondered whether DE would restore OD-plasticity also in adult and old mice and after a cortical stroke. To this end, we raised mice in standard cages until adulthood and transferred them to a darkroom for 10-14 days. Using intrinsic signal optical imaging we demonstrate that short-term DE can restore OD-plasticity after MD in both adult (PD138) and old mice (PD535), and that OD-shifts were mediated by an increase of open eye responses in V1. Interestingly, restored OD-plasticity after DE was accompanied by a reduction of both parvalbumin expressing cells and perineuronal nets and was prevented by increasing intracortical inhibition with diazepam. DE also maintained OD-plasticity in adult mice (PD150) after a stroke in the primary somatosensory cortex. In contrast, short-term DE did not affect basic visual parameters as measured by optomotry. In conclusion, short-term DE was able to restore OD-plasticity in both adult and aging mice and even preserved plasticity after a cortical stroke, most likely mediated by reducing intracortical inhibition.

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Crossref · 10.1016/j.exger.2014.09.007

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  • Reactivation of plasticity through dark exposure has been demonstrated in several species, including kittens, and is effective in mice up to P535 days old.

    “The reactivation of plasticity through dark exposure has now been demonstrated in several species, including kittens (Duffy and Mitchell, 2013; Mitchell et al., 2016) and is effective in mice up to P535 days old (Stodieck et al., 2014).”

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Authors
Stodieck, S. K., Greifzu, F., Goetze, B., Schmidt, K.-F., & Löwel, S.
Affiliations
University of Göttingen (DE)
Corresponding author
Greifzu, Franziska
Venue
Experimental Gerontology
Publisher
Elsevier BV
Published
2014-12
Volume
60
Pages
1-11
ISSN
0531-5565 (ISSN-L)
OpenAlex
W1971604198
Cited by
43
References
58
Citations by year
2026: 1 · 2025: 4 · 2024: 2 · 2023: 1 · 2022: 1 · 2020: 3 · 2019: 6 · 2018: 7 · 2017: 9 · 2016: 5 · 2015: 4
FWCI
3.34
Type
journal article
Language
en
Open access
Locations
  • Experimental Gerontology (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • GRO (submittedVersion)
Funders
  • Federal Ministry of Education and Research, Germany (01GQ0921, 01GQ0810)
  • Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
ocular dominance plasticity, monocular deprivation, dark exposure, aging, cortical stroke, primary visual cortex, intracortical inhibition, parvalbumin interneurons, perineuronal nets, diazepam, somatosensory cortex, adult mice
MeSH terms
Aging, Animals, Darkness, Diazepam, Female, Male, Mice, Inbred C57BL, Neuronal Plasticity, Parvalbumins, Sensory Deprivation, Somatosensory Cortex, Visual Acuity, Visual Cortex, Contrast Sensitivity, Stroke, Dominance, Ocular, Mice, Rats

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