| Enriched experience and recovery from amblyopia in adult rats: Impact of motor, social and sensory components. | |
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MedLine Citation:
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PMID: 22532989 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Amblyopia is one of the most common forms of visual impairment, arising from an early functional imbalance between the two eyes. It is currently accepted that, due to a lack of neural plasticity,amblyopia is an untreatable pathology in adults. Environmental enrichment (EE) emerged as a strategy highly effective in restoring plasticity in adult animals, eliciting recovery from amblyopia through a reduction of intracortical inhibition. It is unknown whether single EE components are able to promote plasticity in the adult brain, crucial information for designing new protocols of environmental stimulation suitable for amblyopic human subjects. Here, we assessed the effects of enhanced physical exercise,increased social interaction, visual enrichment or perceptual learning on visual function recovery in adult amblyopic rats. We report a complete rescue of both visual acuity and ocular dominance in exercised rats, in animals exposed to visual enrichment and in animals engaged in perceptual learning.These effects were accompanied by a reduced inhibition/excitation balance in the visual cortex. In contrast, we did not detect any sign of recovery in socially enriched rats or in animals practicing a purely associative visual task. These findings could have a bearing in orienting clinical research in the field of amblyopia therapy. |
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Authors:
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Laura Baroncelli; Joyce Bonaccorsi; Marco Milanese; Tiziana Bonifacino; Francesco Giribaldi; Ilaria Manno; Maria Cristina Cenni; Nicoletta Berardi; Giambattista Bonanno; Lamberto Maffei; Alessandro Sale |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Neuropharmacology Volume: 62 ISSN: 1873-7064 ISO Abbreviation: Neuropharmacology Publication Date: 2012 Jun |
Date Detail:
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Created Date: 2012-04-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0236217 Medline TA: Neuropharmacology Country: England |
Other Details:
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Languages: eng Pagination: 2388-97 Citation Subset: IM |
Affiliation:
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Institute of Neuroscience CNR, Pisa I-56100, Italy. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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