Subjective contours - bridging the gap between psychophysics and physiology
Subjective contours - bridging the gap between psychophysics and physiology
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主观轮廓——弥合心理物理学和生理学之间的差距
DOI：
10.1016/0166-2236(91)90072-3
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发表时间：
1991
影响因子：
15.9
通讯作者：
R. Heydt
中科院分区：
文献类型：
--
作者：
E. Peterhans;R. Heydt
人们对纹状皮层视觉处理的初始阶段了解很多，但是视觉信息在后续阶段是如何表示和处理的呢？轮廓、颜色和运动感知的现象已被用来识别神经元的功能，并揭示皮层区域之间的功能差异，而经典感受野概念的应用尚未表明这些差异。这些差异可能与视觉处理的理论阶段有关，这些阶段在不断变化的刺激条件下提供了感知的稳定性。心理物理学方法长期以来一直被用来研究隐藏在大脑中的生理过程，当生理数据最终获得时，它们常常证实从心理物理学实验中得出的结论，或者表明生理和心理物理现象之间的相关性。例如，锥体吸收光谱的测量证实了杨-亥姆霍兹色觉理论，并证明了三色性的生理相关性。然而，更常见的是，特别是近几十年来，生理学研究得出的结果既没有证实预期，也没有提供已知心理物理学概念（例如皮层神经元的感受野）的相关性。可以说，生理学得到了解放，并被独立地用来研究视觉。然而，许多作者此后研究了视觉皮层处理，而没有参考感知。事实上，试图为各种各样的心理物理现象找到相应的生理数据似乎是毫无意义的。然而，生理学需要与感知联系起来。视觉皮层的复杂性无法通过类似于拆开时钟来理解其功能的方法来实现 1。
Much is known about the initial stages of visual processing up to the striate cortex, but how is visual information represented and handled at subsequent stages? Phenomena of contour, color and movement perception have been used to identify functions of neurons and to reveal functional differences between cortical areas that application of classical receptive-field concepts has not suggested. These differences can be related to theoretical stages of visual processing that provide stability of perception under changing conditions of stimulation.Psychophysical methods have long been used to investigate physiological processes that were hidden in the brain and, when physiological data eventually became available, they often confLrmed the conclusions drawn from psychophysical experiments, or indicated a correlation between the physiological and psychophysical phenomena. The measurements of cone absorption spectra, for example, confirmed the Young-Helmholtz theory of color vision and demonstrated the physiological correlate of trichromatism. More often, however, particularly in recent decades, physiological studies have led to findings that neither confirmed expectations nor provided correlates of known psychophysical concepts, such as the receptive fields of cortical neurons. Physiology became emancipated, so to speak, and was used independently to study vision. However, many authors have since studied visual cortical processing without reference to perception. Indeed, it might appear to be pointless to try to find corresponding physiological data for the vast variety of psychophysical phenomena. Yet physiology needs to be linked to perception. The complexity of the visual cortex defies an approach that is comparable to taking a clock apart in order to understand its function 1.
硫醇肽抑制碱引起的角膜溃疡和穿孔。
影响因子：
4.4
作者：
Burns,FR;Gray,RD;Paterson,CA
通讯作者：
Paterson,CA