Spence C, Nicholls M E, Gillespie N, Driver J
Department of Experimental Psychology, University of Oxford, England.
Percept Psychophys. 1998 May;60(4):544-57. doi: 10.3758/bf03206045.
Three experiments investigated cross-modal links between touch, audition, and vision in the control of covert exogenous orienting. In the first two experiments, participants made speeded discrimination responses (continuous vs. pulsed) for tactile targets presented randomly to the index finger of either hand. Targets were preceded at a variable stimulus onset asynchrony (150, 200, or 300 msec) by a spatially uninformative cue that was either auditory (Experiment 1) or visual (Experiment 2) on the same or opposite side as the tactile target. Tactile discriminations were more rapid and accurate when cue and target occurred on the same side, revealing cross-modal covert orienting. In Experiment 3, spatially uninformative tactile cues were presented prior to randomly intermingled auditory and visual targets requiring an elevation discrimination response (up vs. down). Responses were significantly faster for targets in both modalities when presented ipsilateral to the tactile cue. These findings demonstrate that the peripheral presentation of spatially uninformative auditory and visual cues produces cross-modal orienting that affects touch, and that tactile cues can also produce cross-modal covert orienting that affects audition and vision.
三项实验研究了在隐蔽外源性定向控制中触觉、听觉和视觉之间的跨模态联系。在前两项实验中，参与者对随机呈现于任意一只手食指上的触觉目标做出快速辨别反应（连续与脉冲）。在可变的刺激起始异步时间（150、200或300毫秒）之前，会出现一个空间上无信息的线索，该线索在与触觉目标同侧或异侧，要么是听觉线索（实验1），要么是视觉线索（实验2）。当线索和目标出现在同一侧时，触觉辨别更快且更准确，这揭示了跨模态隐蔽定向。在实验3中，在需要进行高低辨别反应（向上与向下）的随机混合的听觉和视觉目标之前，呈现空间上无信息的触觉线索。当触觉线索同侧呈现两种模态的目标时，反应显著更快。这些发现表明，空间上无信息的听觉和视觉线索的外周呈现会产生影响触觉的跨模态定向，并且触觉线索也能产生影响听觉和视觉的跨模态隐蔽定向。
