There’s something about that groove: Rhythm improves detection of audio but not vibrotactile asynchronies

Authors

  • Andrew P. Lauzon York University<span style="white-space: pre;"> </span>
  • Frank A. Russo Ryerson University
  • Laurence R. Harris York University<span style="white-space: pre;"> </span>

Abstract

This study examined how contextual relationships in time can affect perception, specifically the influence of a regularly occurring (isochronous) rhythm on judgements of simultaneity in both the auditory and vibrotactile modalities. Using the method of constant stimuli and a two-alternative forced choice, participants were presented with pairs of pure tones played either simultaneously or with various levels of stimulus onset asynchrony (SOA), and thresholds of detection (TOD) were defined as the SOA value at which participants achieved 75% accuracy. Stimuli in both modalities were nested within either: i) a regularly occurring, predictable (isochronous) rhythm ii) an irregular unpredictable (non-isochronous) rhythm, or iii) no rhythm at all. TODs were significantly reduced by the regular rhythm as compared to no rhythm, but only in the auditory modality. Also, vibrotactile conditions also showed far greater variability overall, suggesting these tasks were more difficult.

Author Biographies

Andrew P. Lauzon, York University<span style="white-space: pre;"> </span>

Undergraduate Student

Frank A. Russo, Ryerson University

Professor

Laurence R. Harris, York University<span style="white-space: pre;"> </span>

Professor

Additional Files

Published

2016-08-25

How to Cite

1.
Lauzon AP, Russo FA, Harris LR. There’s something about that groove: Rhythm improves detection of audio but not vibrotactile asynchronies. Canadian Acoustics [Internet]. 2016 Aug. 25 [cited 2024 Nov. 21];44(3). Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2969

Issue

Vol. 44 No. 3 (2016)

Section

Proceedings of the Acoustics Week in Canada

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