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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Visual latencies in cytochrome oxidase bands of macaque area V2.
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Visual latencies in cytochrome oxidase bands of macaque area V2.

机译:猕猴V2区细胞色素氧化酶谱带的视觉潜伏期。

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摘要

Cytochrome oxidase bands in area V2 of the primate visual cortex constitute separate relays for parallel channels relaying information from area V1 to other extrastriate cortical areas. We investigated whether information is transferred at the same speed in the different channels by measuring the latencies of neurons in different cytochrome oxidase bands identified by the presence or absence of retrogradely labeled cells from injections in area V4. Results show that neurons in the thick and pale bands respond 20 msec earlier than those in the thin bands. We also found that color-selective neurons respond later than neurons with no selectivity for color and that direction-selective neurons have shorter latencies than neurons with no selectivity for the direction of stimulus movement.
机译:灵长类动物视觉皮层V2区域中的细胞色素氧化酶带构成独立的继电器,用于并行通道将信息从区域V1中继到其他超皮层皮质区域。我们通过测量不同细胞色素氧化酶谱带中神经元的潜伏期来研究信息是否以相同的速度在不同通道中传递,这些潜伏期由V4区域注射的逆向标记细胞的存在或不存在来确定。结果表明,在较粗和较浅的带中,神经元的响应比在较细带中的要早20毫秒。我们还发现,颜色选择神经元的响应时间比对颜色没有选择性的神经元的响应要晚,而方向选择神经元的响应时间比对刺激运动的方向没有选择性的神经元的响应时间短。

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