Binocular form deprivation influences the visual cortex

doi:10.3969/j.issn.1673-5374.2012.34.009

Abstract

Abstract:

α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors are considered to play a crucial role in synaptic plasticity in the developing visual cortex. In this study, we established a rat model of binocular form deprivation by suturing the rat binocular eyelids before eye-opening at postnatal day 14. During development, the decay time of excitatory postsynaptic currents mediated by α-amino-3- hydroxy-5-methyl-4-isoxazolepropionic acid receptors of normal rats became longer after eye- opening; however, the decay time did not change significantly in binocular form deprivation rats. The peak value in the normal group became gradually larger with age, but there was no significant change in the binocular form deprivation group. These findings indicate that binocular form deprivation influences the properties of excitatory postsynaptic currents mediated by α-amino-3- hydroxy-5-methyl-4-isoxazolepropionic acid receptors in the rat visual cortex around the end of the critical period, indicating that form stimulation is associated with the experience-dependent modification of neuronal synapses in the visual cortex.

Key words: α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors, excitatory postsynaptic currents, whole-cell recording, visual cortex, binocular form deprivation, visual development, neural development, regeneration, neural regeneration

Mingming Liu, Chuanhuang Weng, Hanping Xie, Wei Qin . Binocular form deprivation influences the visual cortex[J]. Neural Regeneration Research, 2012, 7(34): 2713-2718.

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