Short-latency fixational saccades induced by luminance increments
Short-latency fixational saccades induced by luminance increments
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DOI：
10.1152/jn.00146.2003
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发表时间：
2003-08-01
影响因子：
2.5
通讯作者：
Albright, TD
中科院分区：
文献类型：
--
作者：
Horwitz, GD;Albright, TD
我们研究了周边视觉刺激对注视过程中自然发生的小幅度扫视的影响。两只猕猴因注视而获得奖励，同时彩色刺激物在周围随机闪烁。反向相关揭示了刺激序列和眼跳发生之间的规律关系：平均而言，刺激强度的瞬时增加会在大约 70 毫秒的潜伏期引起眼跳。这种增加的光谱调谐大致但不完全与纯亮度增加一致。我们得出的结论是，周围亮度的增加会引起注视眼跳。
We investigated the effect of peripheral visual stimulation on small-amplitude saccades that occur naturally during fixation. Two macaque monkeys were rewarded for fixating while a colorful stimulus flickered randomly in the periphery. Reverse correlation revealed a lawful relationship between the stimulus sequence and saccade occurrences: on average, a transient increase in stimulus intensity evoked saccades at a latency of similar to70 ms. The spectral tuning of this increase was roughly, but not exactly, consistent with a pure luminance increase. We conclude that peripheral luminance increases can evoke fixational saccades.