IMPLICATIONS OF SUSTAINED AND TRANSIENT CHANNELS FOR THEORIES OF VISUAL-PATTERN MASKING, SACCADIC SUPPRESSION, AND INFORMATION-PROCESSING
IMPLICATIONS OF SUSTAINED AND TRANSIENT CHANNELS FOR THEORIES OF VISUAL-PATTERN MASKING, SACCADIC SUPPRESSION, AND INFORMATION-PROCESSING
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DOI：
10.1037/0033-295x.83.1.1
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发表时间：
1976-01-01
影响因子：
5.4
通讯作者：
GANZ, L
中科院分区：
文献类型：
--
作者：
BREITMEYER, BG;GANZ, L
回顾视觉掩蔽文学的背景下，已知的神经生理和心理物理特性的视觉系统的时空响应。文献表明，3个一致的和典型的模式掩蔽效应-（a）B型向前或paracontrast，（b）B型向后或metacontrast，和（c）A型向前和向后-可以解释在3个简单的感觉过程。假设持续通道参与结构或图形信息的处理，而瞬态通道参与信号的空间位置或空间位置的变化（即运动）的刺激。在所提出的模型中，B型前掩蔽或旁对照是通过侧抑制介导的，侧抑制在持续细胞感受野的中心-周围拮抗中实现。与这种通道内抑制机制相对应，B型后向掩蔽或后对比是由通道间抑制机制产生的（即，瞬时细胞横向抑制持续细胞的活性）。这两种机制被认为是操作或之前的轮廓形成水平的视觉处理。A型掩蔽效应解释在视觉处理的preiconic和图标水平的持续通道信息的感觉整合。这种多通道模型的影响，眼跳抑制和信息处理方法的模式识别进行了讨论。（5 p参考）（PsycINFO数据库记录（c）2016阿帕，保留所有权利）
Reviews the visual masking literature in the context of known neurophysiological and psychophysical properties of the visual system's spatiotemporal response. The literature indicates that 3 consistent and typical pattern masking effects—(a) Type B forward or paracontrast,(b) Type B backward or metacontrast, and (c) Type A forward and backward—can be explained in terms of 3 simple sensory processes. It is hypothesized that sustained channels are involved in the processing of structural or figural information, whereas transient channels are involved in signaling the spatial location or change in spatial location (ie, the motion) of a stimulus. In the proposed model, Type B forward masking or paracontrast is mediated via lateral inhibition realized in the center-surround antagonism of the receptive fields of the sustained cells. In apposition to this mechanism of intrachannel inhibition, Type B backward masking or metacontrast is produced by a mechanism of interchannel inhibition (ie, transient cells laterally inhibit the activity of sustained cells). Both mechanisms are assumed to be operating at or prior to the contour-forming levels of visual processing. Type A masking effects are explained in terms of sensory integration of sustained channel information at preiconic and iconic levels of visual processing. The implications of this multichannel model for saccadic-suppression and information-processing approaches to pattern recognition are discussed.(5 p ref)(PsycINFO Database Record (c) 2016 APA, all rights reserved)