Kveraga Kestutis, Hughes Howard C
Department of Psychological and Brain Sciences, Dartmouth College, Moore Hall, HB 6207, Hanover, NH 03755, USA.
Exp Brain Res. 2005 Apr;162(3):401-5. doi: 10.1007/s00221-004-2155-z. Epub 2005 Jan 15.
Kveraga et al. (2002, Exp Brain Res 146(3):307-14) reported that saccade latencies are immune to the effects of stimulus-response uncertainty and constitute one of the few response systems that violate Hick's law. Similar effects have been reported for keypresses triggered by vibrations of the fingertips, but robust uncertainty effects were subsequently revealed using weak, low-frequency vibrations (Ten Hoopen et al. 1982, Acta Psychol 50:143-157). We wondered whether immunity of saccadic responses would demonstrate a similar intensity-dependency and therefore re-examined the effects of response entropy on saccade latencies using near-threshold visual stimuli. Saccadic latencies remained independent of stimulus-response uncertainty, indicating that saccadic motor programming is unaffected by the duration of the target detection process.
克韦拉加等人（2002年，《实验脑研究》146(3):307 - 14）报告称，扫视潜伏期不受刺激 - 反应不确定性的影响，是少数违反希克定律的反应系统之一。对于由指尖振动触发的按键操作也有类似的效应报道，但随后使用微弱的低频振动揭示了显著的不确定性效应（滕胡彭等人，1982年，《心理学学报》50:143 - 157）。我们想知道扫视反应的免疫性是否会表现出类似的强度依赖性，因此使用接近阈值的视觉刺激重新研究了反应熵对扫视潜伏期的影响。扫视潜伏期仍然与刺激 - 反应不确定性无关，这表明扫视运动编程不受目标检测过程持续时间的影响。
