THE ROLE OF THE PRIMATE EXTRASTRIATE AREA V4 IN VISION

THE ROLE OF THE PRIMATE EXTRASTRIATE AREA V4 IN VISION
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DOI:
10.1126/science.2006413
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发表时间:
1991-03-08
期刊:
影响因子:
56.9
通讯作者:
LEE, KM
LEE, KM
中科院分区:
综合性期刊1区
文献类型:
--
作者:
SCHILLER, PH;LEE, KM

文献摘要

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V4区是灵长类视觉皮层的一部分。 它在视觉中的作用已经被广泛讨论。 关于这个区域的功能的推断,现在已经通过检查恒河猴V4消融后的广泛的视觉能力来做出。 所获得的结果表明,这一领域涉及更复杂的方面的视觉信息处理比以前提出的。 猴子有特别严重的赤字的情况下,任务是选择目标刺激,有一个较低的对比度,较小的尺寸,或速度较慢的运动比阵列的比较刺激,他们必须加以区分。 对每项具体任务的广泛培训提高了业绩。 然而,在V4消融后,猴子无法将特定任务概括为新的刺激配置和新的空间位置。
Area V4 is a part of the primate visual cortex. Its role in vision has been extensively debated. Inferences about the functions of this area have now been made by examination of a broad range of visual capacities after ablation of V4 in rhesus monkeys. The results obtained suggest that this area is involved in more complex aspects of visual information processing than had previously been suggested. Monkeys had particularly severe deficits in situations where the task was to select target stimuli that had a lower contrast, smaller size, or slower rate of motion than the array of comparison stimuli from which they had to be discriminated. Extensive training on each specific task resulted in improved performance. However, after V4 ablation, the monkeys could not generalize the specific task to new stimulus configurations and to new spatial locations.