TY - JOUR
T1 - Enhancement of visual perception by crossmodal visuo-auditory interaction
AU - Frassinetti, Francesca
AU - Bolognini, Nadia
AU - Làdavas, Elisabetta
PY - 2002
Y1 - 2002
N2 - Neurophysiological studies have shown in animals that a sudden sound enhanced perceptual processing of subsequent visual stimuli. In the present study, we explored the possibility that such enhancement also exists in humans and can be explained through cross-modal integration effects, whereby the interaction occurs at the level of bimodal neurons. Subjects were required to detect visual stimuli in a unimodal visual condition or in crossmodal audio-visual conditions. The spatial and the temporal proximity of multisensory stimuli were systematically varied. An enhancement of the perceptual sensitivity (d') for luminance detection was found when the audiovisual stimuli followed a rather clear spatial and temporal rule, governing multisensory integration at the neuronal level.
AB - Neurophysiological studies have shown in animals that a sudden sound enhanced perceptual processing of subsequent visual stimuli. In the present study, we explored the possibility that such enhancement also exists in humans and can be explained through cross-modal integration effects, whereby the interaction occurs at the level of bimodal neurons. Subjects were required to detect visual stimuli in a unimodal visual condition or in crossmodal audio-visual conditions. The spatial and the temporal proximity of multisensory stimuli were systematically varied. An enhancement of the perceptual sensitivity (d') for luminance detection was found when the audiovisual stimuli followed a rather clear spatial and temporal rule, governing multisensory integration at the neuronal level.
KW - Crossmodal integration
KW - Perceptual sensitivity
KW - Visual-acoustic interaction
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U2 - 10.1007/s00221-002-1262-y
DO - 10.1007/s00221-002-1262-y
M3 - Article
C2 - 12428141
AN - SCOPUS:0036431699
VL - 147
SP - 332
EP - 343
JO - Experimental Brain Research
JF - Experimental Brain Research
SN - 0014-4819
IS - 3
ER -