Lloyd Donna M, Merat Natasha, McGlone Francis, Spence Charles
University of Oxford, Oxford, England.
Percept Psychophys. 2003 Aug;65(6):901-24. doi: 10.3758/bf03194823.
We report three experiments designed to investigate the nature of any crossmodal links between audition and touch in sustained endogenous covert spatial attention, using the orthogonal spatial cuing paradigm. Participants discriminated the elevation (up vs. down) of auditory and tactile targets presented to either the left or the right of fixation. In Experiment 1, targets were expected on a particular side in just one modality; the results demonstrated that the participants could spatially shift their attention independently in both audition and touch. Experiment 2 demonstrated that when the participants were informed that targets were more likely to be on one side for both modalities, elevation judgments were faster on that side in both audition and touch. The participants were also able to "split" their auditory and tactile attention, albeit at some cost, when targets in the two modalities were expected on opposite sides. Similar results were also reported in Experiment 3 when participants adopted a crossed-hands posture, thus revealing that crossmodal links in audiotactile attention operate on a representation of space that is updated following posture change. These results are discussed in relation to previous findings regarding crossmodal links in audiovisual and visuotactile covert spatial attentional orienting.
我们报告了三项实验，这些实验旨在使用正交空间线索范式，研究在持续的内源性隐蔽空间注意中，听觉与触觉之间任何跨通道联系的本质。参与者辨别呈现于注视点左侧或右侧的听觉和触觉目标的高度（向上与向下）。在实验1中，仅在一种模态中预期目标出现在特定一侧；结果表明，参与者能够在听觉和触觉中独立地进行空间注意力转移。实验2表明，当参与者被告知两种模态下目标更有可能出现在一侧时，在该侧的听觉和触觉中，高度判断都更快。当预期两种模态下的目标出现在相反侧时，参与者也能够“分开”他们的听觉和触觉注意力，尽管会有一定代价。在实验3中，当参与者采用交叉双手姿势时也报告了类似结果，从而表明听觉触觉注意中的跨通道联系作用于随姿势变化而更新的空间表征。我们结合先前关于视听和视觉触觉隐蔽空间注意定向中跨通道联系的研究结果，对这些结果进行了讨论。
