Does dorsal processing require central capacity? More evidence from the PRP paradigm
Does dorsal processing require central capacity? More evidence from the PRP paradigm
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背部处理需要中央能力吗？
DOI：
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发表时间：
2010
影响因子：
2
通讯作者：
Wilfried Kunde
中科院分区：
文献类型：
--
作者：
M. Janczyk;Wilfried Kunde
人类的视觉系统似乎分为两个流：从V1到下颞叶皮层的腹侧流处理“视觉感知”，从V1到后顶叶皮层的背侧流处理“视觉行动”。除其他特征外，有人认为背侧处理是毫不费力、无意识的，并且不影响腹侧处理所涉及的中央认知资源。本研究表明，一个典型的背侧任务（即，抓握物体）受到双重任务情况下能力限制的经典指标，心理不应期（PRP）效应的影响。特别是，对任务2（抓握任务）的反应时间增加，这两个任务在时间上重叠得越多，即，两种任务刺激之间的时间间隔越短。在PRP实验中也很常见，对任务1的响应时间在很大程度上不受这种变化的影响。PRP效果，尽管得到了精心控制的战略反应推迟，和周边重叠的反应方式，可能人为地创造了性能成本在以前的研究。总之，目前的研究结果表明，背加工是受到相同的能力限制，几乎可以普遍发现与简单的认知任务。
The human vision system appears to divide into two streams: a ventral stream from V1 to the inferior temporal cortex processing ‘vision for perception’, and a dorsal stream from V1 to the posterior parietal cortex processing ‘vision for action’. Among other characteristics, it has been suggested that dorsal processing is effortless, unconscious, and not bearing on central cognitive resources implicated in ventral processing. The present study shows that a typical dorsal task (i.e., grasping an object) is subject to a classical indicator of capacity limitations in dual-task situations, the psychological refractory period (PRP) effect. In particular, response times to task 2 (the grasping task) increased the more the two tasks overlapped in time, i.e., the shorter the time interval between the stimuli of the two tasks was. As is also common in PRP experiments, response times to task 1 were largely unaffected by this variation. The PRP effect was obtained despite careful control of strategic response deferment, and peripheral overlap of response modalities that may have artificially created performance costs in previous studies. Altogether, the present results show that dorsal processing is subject to the same capacity limitations that can almost universally be found with simple cognitive tasks.
心理旋转需要中枢机制吗？
DOI：
10.1037//0096-1523.21.3.552
发表时间：
1995
期刊：
Journal of experimental psychology. Human perception and performance
影响因子：
--
作者：
Ruthruff,E;Miller,J;Lachmann,T
通讯作者：
Lachmann,T