ARE MICROSACCADES RESPONSIBLE FOR THE GAP EFFECT
ARE MICROSACCADES RESPONSIBLE FOR THE GAP EFFECT
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DOI：
10.3758/bf03206795
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发表时间：
1995-08-01
期刊：
影响因子：
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通讯作者：
REUTERLORENZ, PA
中科院分区：
文献类型：
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作者：
KINGSTONE, A;FENDRICH, R;REUTERLORENZ, PA
在周边视觉目标开始之前不久或同时熄灭注视点可以减少对该目标的扫视的延迟。Saslow（1967）假设这种间隙效应可能发生，因为注视点偏移减少了具有相关扫视不应期的矫正性微扫视的发生率。在本研究中，一个强大的差距效应。然而，使用分辨率为1弧分的浦肯野图像眼动仪，我们发现注视点偏移对微扫视的发生没有影响，并且微扫视的发生对差距效应的大小没有影响。因此，微扫视似乎在产生差距效应中不起任何作用。
Extinguishing a fixation point shortly before, or concurrently with, the onset of a peripheral visual target reduces the latency of saccades to that target. Saslow (1967) hypothesized that this gap effect might occur because fixation point offsets reduce the incidence of corrective microsaccades with an associated saccadic refractory period. In the present study, a robust gap effect was obtained. However, using a Purkinje image eyetracker with 1 arcmin of resolution, we found that fixation point offsets had no effect on the occurrence of microsaccades and that the occurrence of microsaccades had no impact on the magnitude of the gap effect. Microsaccades therefore do not appear to play any part in the production of the gap effect.