Abstract
Older people can discriminate visual motion of large, high-contrast stimuli better than young adults. This surprising result, reported by Betts et al. in this issue of Neuron, suggests weaker center-surround antagonism in senescence, perhaps attributable to age-related reduction in GABA-mediated inhibition.
MeSH terms
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Aged
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Aging / physiology*
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Contrast Sensitivity / physiology
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Humans
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Motion Perception / physiology*
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Neural Inhibition / physiology
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Neural Pathways / anatomy & histology
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Neural Pathways / physiology*
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Sensory Thresholds / physiology
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Visual Cortex / anatomy & histology
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Visual Cortex / physiology*
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gamma-Aminobutyric Acid / metabolism