PMID- 23363411 OWN - NLM STAT- MEDLINE DCOM- 20130926 LR - 20130329 IS - 1530-8898 (Electronic) IS - 0898-929X (Linking) VI - 25 IP - 5 DP - 2013 May TI - Spatial remapping in the audio-tactile ventriloquism effect: a TMS investigation on the role of the ventral intraparietal area. PG - 790-801 LID - 10.1162/jocn_a_00362 [doi] AB - Previous studies have suggested that the putative human homologue of the ventral intraparietal area (hVIP) is crucially involved in the remapping of tactile information into external spatial coordinates and in the realignment of tactile and visual maps. It is unclear, however, whether hVIP is critical for the remapping process during audio-tactile cross-modal spatial interactions. The audio-tactile ventriloquism effect, where the perceived location of a sound is shifted toward the location of a synchronous but spatially disparate tactile stimulus, was used to probe spatial interactions in audio-tactile processing. Eighteen healthy volunteers were asked to report the perceived location of brief auditory stimuli presented from three different locations (left, center, and right). Auditory stimuli were presented either alone (unimodal stimuli) or concurrently to a spatially discrepant tactile stimulus applied to the left or right index finger (bimodal stimuli), with the hands adopting either an uncrossed or a crossed posture. Single pulses of TMS were delivered over the hVIP or a control site (primary somatosensory cortex, SI) 80 msec after trial onset. TMS to the hVIP, compared with the control SI-TMS, interfered with the remapping of touch into external space, suggesting that hVIP is crucially involved in transforming spatial reference frames across audition and touch. FAU - Renzi, Chiara AU - Renzi C AD - Brain and Behavioral Sciences Department, University of Pavia, Piazza Botta 6, 27100 Pavia, Italy. chiara.renzi@unipv.it FAU - Bruns, Patrick AU - Bruns P FAU - Heise, Kirstin-Friederike AU - Heise KF FAU - Zimerman, Maximo AU - Zimerman M FAU - Feldheim, Jan-Frederik AU - Feldheim JF FAU - Hummel, Friedhelm C AU - Hummel FC FAU - Roder, Brigitte AU - Roder B LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130130 PL - United States TA - J Cogn Neurosci JT - Journal of cognitive neuroscience JID - 8910747 SB - IM MH - Acoustic Stimulation MH - Adult MH - Analysis of Variance MH - Evoked Potentials, Somatosensory/*physiology MH - Female MH - Functional Laterality MH - Humans MH - Male MH - Neural Pathways/physiology MH - Parietal Lobe/*physiology MH - Photic Stimulation MH - Psychomotor Performance/physiology MH - Reaction Time/physiology MH - Sound Localization/*physiology MH - Space Perception/*physiology MH - Touch Perception/*physiology MH - *Transcranial Magnetic Stimulation MH - Young Adult EDAT- 2013/02/01 06:00 MHDA- 2013/09/27 06:00 CRDT- 2013/02/01 06:00 PHST- 2013/02/01 06:00 [entrez] PHST- 2013/02/01 06:00 [pubmed] PHST- 2013/09/27 06:00 [medline] AID - 10.1162/jocn_a_00362 [doi] PST - ppublish SO - J Cogn Neurosci. 2013 May;25(5):790-801. doi: 10.1162/jocn_a_00362. Epub 2013 Jan 30.