Thompson P G, Movshon J A
Perception. 1978;7(1):65-73. doi: 10.1068/p070065.
The decay of several visual aftereffects may be prolonged by interposing a period of light-free or pattern-free viewing between adaptation and testing. We demonstrate that this storage phenomenon can be observed using the threshold elevation aftereffect that follows inspection of a high-contrast grating pattern. Control experiments comparing thresholds for vertical and horizontal gratings after adaptation to a vertical grating reveal that the stored aftereffect, like its unstored counterpart, is pattern-selective. Storage is equally pronounced with stimuli that are detected by pattern-analyzing or movement-analyzing visual channels. Unlike other aftereffects, the threshold-elevation aftereffect requires that the storage period be light-free; no storage is seen if a blank field is inspected between adaptation and testing. The results are discussed with respect to the nature of visual aftereffects, and possible cognitive or physiological models of storage.
通过在适应和测试之间插入一段无光照或无图案的观看时间，可以延长几种视觉后效的衰退时间。我们证明，使用检查高对比度光栅图案后出现的阈值升高后效可以观察到这种存储现象。在适应垂直光栅后比较垂直和水平光栅阈值的对照实验表明，存储的后效与其未存储的对应物一样，具有图案选择性。对于通过图案分析或运动分析视觉通道检测到的刺激，存储效果同样明显。与其他后效不同，阈值升高后效要求存储期无光照；如果在适应和测试之间检查空白场，则看不到存储现象。我们将根据视觉后效的性质以及可能的认知或生理存储模型来讨论这些结果。
