Specific GABAA circuits for visual cortical plasticity
- PMID: 15017002
- DOI: 10.1126/science.1091032
Specific GABAA circuits for visual cortical plasticity
Abstract
Weak inhibition within visual cortex early in life prevents experience-dependent plasticity. Loss of responsiveness to an eye deprived of vision can be initiated prematurely by enhancing gamma-aminobutyric acid (GABA)-mediated transmission with benzodiazepines. Here, we use a mouse "knockin" mutation to alpha subunits that renders individual GABA type A (GABA(A)) receptors insensitive to diazepam to show that a particular inhibitory network controls expression of the critical period. Only alpha1-containing circuits were found to drive cortical plasticity, whereas alpha2-enriched connections separately regulated neuronal firing. This dissociation carries implications for models of brain development and the safe design of benzodiazepines for use in infants.
Comment in
-
Neuroscience. Blocking plasticity in the visual cortex.Science. 2004 Mar 12;303(5664):1619-21. doi: 10.1126/science.1096224. Science. 2004. PMID: 15016985 No abstract available.
Similar articles
-
Lifelong learning: ocular dominance plasticity in mouse visual cortex.Curr Opin Neurobiol. 2006 Aug;16(4):451-9. doi: 10.1016/j.conb.2006.06.007. Epub 2006 Jul 11. Curr Opin Neurobiol. 2006. PMID: 16837188 Review.
-
Role of synaptic inhibition in spatiotemporal patterning of cortical activity.Prog Brain Res. 2005;147:201-4. doi: 10.1016/S0079-6123(04)47015-0. Prog Brain Res. 2005. PMID: 15581707 Review.
-
Columnar architecture sculpted by GABA circuits in developing cat visual cortex.Science. 2004 Mar 12;303(5664):1678-81. doi: 10.1126/science.1091031. Science. 2004. PMID: 15017001 Free PMC article.
-
Neuroscience. Blocking plasticity in the visual cortex.Science. 2004 Mar 12;303(5664):1619-21. doi: 10.1126/science.1096224. Science. 2004. PMID: 15016985 No abstract available.
-
Inhibitory threshold for critical-period activation in primary visual cortex.Nature. 2000 Mar 9;404(6774):183-6. doi: 10.1038/35004582. Nature. 2000. PMID: 10724170
Cited by
-
Overexpression of the schizophrenia risk gene C4 in PV cells drives sex-dependent behavioral deficits and circuit dysfunction.bioRxiv [Preprint]. 2024 Apr 12:2024.01.27.575409. doi: 10.1101/2024.01.27.575409. bioRxiv. 2024. PMID: 38328248 Free PMC article. Preprint.
-
Isochronic development of cortical synapses in primates and mice.Nat Commun. 2023 Dec 4;14(1):8018. doi: 10.1038/s41467-023-43088-3. Nat Commun. 2023. PMID: 38049416 Free PMC article.
-
Epilepsy plus blindness in microdeletion of GABRA1 and GABRG2 in mouse and human.Exp Neurol. 2023 Nov;369:114537. doi: 10.1016/j.expneurol.2023.114537. Epub 2023 Sep 11. Exp Neurol. 2023. PMID: 37703949 Free PMC article.
-
Amphetamine disrupts dopamine axon growth in adolescence by a sex-specific mechanism in mice.Nat Commun. 2023 Jul 7;14(1):4035. doi: 10.1038/s41467-023-39665-1. Nat Commun. 2023. PMID: 37419977 Free PMC article.
-
Molecules Affecting Brain Development and Nervous System.Int J Mol Sci. 2023 May 12;24(10):8691. doi: 10.3390/ijms24108691. Int J Mol Sci. 2023. PMID: 37240032 Free PMC article.
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
Other Literature Sources
Molecular Biology Databases