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Title: Physiological properties of direction-selective ganglion cells in early postnatal and adult mouse retina
Author: Chen, Minggang ; Weng, Shijun ; Deng, Qiudong ; Xu, Zhen ; He, Shigang
Source: JOURNAL OF PHYSIOLOGY-LONDON
Issued Date: 2009
Volume: 587, Issue:4, Pages:819-828
Keyword: STARBURST AMACRINE CELLS ; RABBIT RETINA ; VISUAL EXPERIENCE ; MORPHOLOGICAL PROPERTIES ; INNER RETINA ; MATURATION ; DENDRITES ; SYNAPSE ; STIMULATION ; SENSITIVITY
Subject: Neurosciences & Neurology ; Physiology
Corresponding Author: He, SG (reprint author), Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, 15 Da Tun Rd, Beijing 100101, Peoples R China,shiganghe@moon.ibp.ac.cn
English Abstract: Selective responses of retinal ganglion cells (RGCs) to the direction of motion have been recorded extracellularly from the rabbit and the mouse retina at eye opening. Recently, it has been shown that the development of this circuitry is light independent. Using whole-cell patch clamp recording, we report here that mouse early postnatal direction-selective ganglion cells (DSGCs) showed lower membrane excitability, lower reliability of synaptic transmission and much slower kinetics of light responses compared with adult DSGCs. However, the degree of direction selectivity of early postnatal DSGCs measured by the direction-selective index and the width of the directional tuning curve was almost identical to that of adult DSGCs. The DSGCs exhibited a clear selectivity for the direction of motion at the onset of light sensitivity. Furthermore, the degree of direction selectivity was not affected by rearing in complete darkness from birth to postnatal day 11 or 30. The formation of the retinal neurocircuitry for coding motion direction is completely independent of light.
Indexed Type: sci
Language: 英语
Content Type: 期刊论文
URI: http://ir.sibs.ac.cn/handle/331001/1679
Appears in Collections:神经所(总)_期刊论文

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Chen, Minggang; Weng, Shijun; Deng, Qiudong; Xu, Zhen; He, Shigang.Physiological properties of direction-selective ganglion cells in early postnatal and adult mouse retina,JOURNAL OF PHYSIOLOGY-LONDON,2009,587(4):819-828
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