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True and Perceived Synchrony are Preferentially Associated With Particular Sensory Pairings.

Noel JP, Wallace MT, Orchard-Mills E, Alais D, Van der Burg E - Sci Rep (2015)

Bottom Line: We demonstrate that TBWs correlate within individuals and across multisensory pairings, but PSSs do not.Further, we reveal that while the audiotactile and audiovisual pairings show tightly related TBWs, they also exhibit a differential relationship with respect to true and perceived multisensory synchrony.Thus, audiotactile and audiovisual temporal processing share mechanistic features yet are respectively functionally linked to objective and subjective synchrony.

View Article: PubMed Central - PubMed

Affiliation: Neuroscience Graduate Program, Vanderbilt University Medical Center, Nashville, TN 37240, USA.

ABSTRACT
Perception and behavior are fundamentally shaped by the integration of different sensory modalities into unique multisensory representations, a process governed by spatio-temporal correspondence. Prior work has characterized temporal perception using the point in time at which subjects are most likely to judge multisensory stimuli to be simultaneous (PSS) and the temporal binding window (TBW) over which participants are likely to do so. Here we examine the relationship between the PSS and the TBW within and between individuals, and within and between three sensory combinations: audiovisual, audiotactile and visuotactile. We demonstrate that TBWs correlate within individuals and across multisensory pairings, but PSSs do not. Further, we reveal that while the audiotactile and audiovisual pairings show tightly related TBWs, they also exhibit a differential relationship with respect to true and perceived multisensory synchrony. Thus, audiotactile and audiovisual temporal processing share mechanistic features yet are respectively functionally linked to objective and subjective synchrony.

No MeSH data available.


Related in: MedlinePlus

Relationship between TBW widths of different modality pairings.(A) Width of the audio-visual TBW as a function of the width of the audio-tactile TBW. (B) Width of the visuo-tactile TBW as a function of the width of the audio-tactile TBW. (C) Width of the visuo-tactile TBW as a function of the width of the audio-visual TBW. Solid black lines through each dot cluster represents the linear regression for that pairing.
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f2: Relationship between TBW widths of different modality pairings.(A) Width of the audio-visual TBW as a function of the width of the audio-tactile TBW. (B) Width of the visuo-tactile TBW as a function of the width of the audio-tactile TBW. (C) Width of the visuo-tactile TBW as a function of the width of the audio-visual TBW. Solid black lines through each dot cluster represents the linear regression for that pairing.

Mentions: Pearson’s r correlations were calculated between the widths of the TBW for all combinations of sensory pairs (AV-AT, VT-AT, and VT-AV). As depicted in Fig. 2, all three associations revealed a high correlation (AV-AT R2 = 0.89, p < 0.001; VT-AV R2 = 0.86, p < 0.001; VT-AT R2 = 0.81, p < 0.001).


True and Perceived Synchrony are Preferentially Associated With Particular Sensory Pairings.

Noel JP, Wallace MT, Orchard-Mills E, Alais D, Van der Burg E - Sci Rep (2015)

Relationship between TBW widths of different modality pairings.(A) Width of the audio-visual TBW as a function of the width of the audio-tactile TBW. (B) Width of the visuo-tactile TBW as a function of the width of the audio-tactile TBW. (C) Width of the visuo-tactile TBW as a function of the width of the audio-visual TBW. Solid black lines through each dot cluster represents the linear regression for that pairing.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4664927&req=5

f2: Relationship between TBW widths of different modality pairings.(A) Width of the audio-visual TBW as a function of the width of the audio-tactile TBW. (B) Width of the visuo-tactile TBW as a function of the width of the audio-tactile TBW. (C) Width of the visuo-tactile TBW as a function of the width of the audio-visual TBW. Solid black lines through each dot cluster represents the linear regression for that pairing.
Mentions: Pearson’s r correlations were calculated between the widths of the TBW for all combinations of sensory pairs (AV-AT, VT-AT, and VT-AV). As depicted in Fig. 2, all three associations revealed a high correlation (AV-AT R2 = 0.89, p < 0.001; VT-AV R2 = 0.86, p < 0.001; VT-AT R2 = 0.81, p < 0.001).

Bottom Line: We demonstrate that TBWs correlate within individuals and across multisensory pairings, but PSSs do not.Further, we reveal that while the audiotactile and audiovisual pairings show tightly related TBWs, they also exhibit a differential relationship with respect to true and perceived multisensory synchrony.Thus, audiotactile and audiovisual temporal processing share mechanistic features yet are respectively functionally linked to objective and subjective synchrony.

View Article: PubMed Central - PubMed

Affiliation: Neuroscience Graduate Program, Vanderbilt University Medical Center, Nashville, TN 37240, USA.

ABSTRACT
Perception and behavior are fundamentally shaped by the integration of different sensory modalities into unique multisensory representations, a process governed by spatio-temporal correspondence. Prior work has characterized temporal perception using the point in time at which subjects are most likely to judge multisensory stimuli to be simultaneous (PSS) and the temporal binding window (TBW) over which participants are likely to do so. Here we examine the relationship between the PSS and the TBW within and between individuals, and within and between three sensory combinations: audiovisual, audiotactile and visuotactile. We demonstrate that TBWs correlate within individuals and across multisensory pairings, but PSSs do not. Further, we reveal that while the audiotactile and audiovisual pairings show tightly related TBWs, they also exhibit a differential relationship with respect to true and perceived multisensory synchrony. Thus, audiotactile and audiovisual temporal processing share mechanistic features yet are respectively functionally linked to objective and subjective synchrony.

No MeSH data available.


Related in: MedlinePlus