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首页> 外文期刊>The Journal of Neuroscience: The Official Journal of the Society for Neuroscience >Context familiarity enhances target processing by inferior temporal cortex neurons.
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Context familiarity enhances target processing by inferior temporal cortex neurons.

机译:背景熟悉度增强了颞下皮质神经元的目标处理能力。

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摘要

Experience-dependent changes in the response properties of ventral visual stream neurons are thought to underlie our ability to rapidly and efficiently recognize visual objects. How these neural changes are related to efficient visual processing during natural vision remains unclear. Here, we demonstrate a neurophysiological correlate of efficient visual search through highly familiar object arrays. Humans and monkeys are faster at locating the same target when it is surrounded by familiar compared with unfamiliar distractors. We show that this behavioral enhancement is driven by an increased sensitivity of target-selective neurons in inferior temporal cortex. This results from an increased "signal" for target representations and decreased "noise" from neighboring familiar distractors. These data highlight the dynamic properties of the inferior temporal cortex neurons and add to a growing body of evidence demonstrating how experience shapes neural processing in the ventral visual stream.
机译:腹侧视觉流神经元响应特性的经验依赖型变化被认为是我们快速有效识别视觉对象的能力的基础。这些神经变化与自然视觉过程中有效视觉处理的关系尚不清楚。在这里,我们展示了通过高度熟悉的对象阵列进行有效视觉搜索的神经生理相关性。与不熟悉的干扰物相比,人和猴子在被熟悉的目标包围时可以更快地定位相同的目标。我们表明,这种行为增强是由下颞叶皮质中的目标选择性神经元的敏感性增加所驱动的。这是由于目标表示的“信号”增加以及相邻的熟悉的干扰因素的“噪声”减少所致。这些数据突出了颞下皮质神经元的动态特性,并增加了越来越多的证据,表明体验如何塑造腹侧视觉流中的神经处理。

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