The multisensory nature of spatial attention : Crossmodal change blindness between vision, touch and audition

old_uid3941
titleThe multisensory nature of spatial attention : Crossmodal change blindness between vision, touch and audition
start_date2008/01/28
schedule16h15
onlineno
detailsprécédé par des "light refreshments" à 16h
summaryChange detection studies have revealed a failure to detect changes between two  consecutively presented scenes, when they are separated by a distractor that masks the transients typically associated with change. This failure known as ‘change blindness’ has been reported within vision (e.g., Auvray & O’Regan, 2003; Simons, 1996), audition (Vitevitch, 2003), and touch (Gallace, Tan, & Spence, 2006). However, change blindness has never before been investigated when the stimuli are presented to different sensory modalities. In two recent studies (Auvray, Gallace, Tan, & Spence, submitted; Gallace, Auvray, Tan, & Spence,  2006), we showed that observers fail to detect positional changes between two sequentially- presented vibrotactile patterns not only when vibrotactile distractors are used to mask the change, but also when visual distractors are used instead. We subsequentely investigated change detection performance when the two to-be-compared stimulus patterns were presented to different sensory modalities (the first visual and the second tactile or vice versa). The results showed that in the absence of masking, participants detected changes in position accurately, despite the fact that the two to-be-compared displays were presented in different  sensory modalities. Furthermore, when a mask was presented between the two to-be- compared displays, crossmodal change blindness was elicited no matter whether the mask was visual or tactile (Auvray, Gallace, Tan, & Spence, 2007). These findings suggest that certain of the processes underlying change blindness are multisensory in nature. In addition, the possibility to compare spatial locations presented across different sensory modalities suggests that some spatial properties are extracted and held in an amodal format. We discuss these results in relation to recent claims regarding the crossmodal nature of spatial attention.  References  Auvray, M., Gallace, A., Tan, H. Z., & Spence, C. (2007). Crossmodal change blindness  between vision and touch. Acta Psychologica, 126, 79-97.  Auvray, M., Gallace, A., Tan, H. Z., & Spence, C. (submitted). Visual transients induce  change blindness to tactile stimuli presented on fingers. Brain Research.  Auvray, M., & O’Regan, J. K. (2003). L’influence des facteurs sémantiques sur la cécité aux changements progressifs dans les scènes visuelles (The influence of semantic factors on blindness to progressive changes in visual scenes). Année Psychologique, 103, 9-32.  Gallace, A., Auvray, M., Tan, H. Z., & Spence, C. (2006). When visual transients impair tactile change detection: A novel case of crossmodal change blindness? Neuroscience  Letters, 398, 280-285.  Gallace, A., Tan, H. Z., & Spence, C. (2006). The failure to detect tactile change: A tactile analog of visual change blindness. Psychonomic Bulletin & Review, 13, 300-303.  Simons, D. J. (1996). In sight, out of mind: When object representations fail. Psychological Science, 7, 301-305.  Vitevitch, M. S. (2003). Change deafness: The inability to detect changes between two voices.  Journal of Experimental Psychology: Human Perception and Performance, 29, 333-342.
responsiblesvan Vreeswijk, Hansel