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A Method for Tracking the Time Evolution of Steady-State Evoked Potentials
Published on: May 25, 2019
Temporal predictions based on a gradual change in tempo
Thomas E Cope1, Manon Grube, Timothy D Griffiths
1Auditory Group, Institute of Neuroscience, Newcastle University, Tyne and Wear NE1 7RU, United Kingdom. thomascope@gmail.com
The Journal of the Acoustical Society of America
|May 8, 2012
Summary
This study on auditory perception found that people are better at detecting tempo changes when they align with the established pattern. Temporal prediction relies more on recent intervals than the overall sequence tempo.
Area of Science:
- Auditory perception
- Psychoacoustics
- Cognitive psychology
Background:
- Previous research on tempo sensitivity often used isochronous (constant tempo) sequences.
- Understanding temporal prediction is crucial for explaining how humans process auditory rhythms.
Purpose of the Study:
- To investigate the detection of tempo deviations in gradually changing tone sequences.
- To determine the perceptually optimal timing judgments for tones within such sequences.
Main Methods:
- Experiment 1: Presented eight-tone sequences with geometric progression inter-onset intervals, introducing deviations in the final tone's timing.
- Experiment 2: Adapted final interval length based on participant judgments of perceptual optimal timing.
Main Results:
- Participants detected tempo exaggerations better than tempo counteractions.
- Perceptually optimal timing was judged roughly halfway between the mathematically correct value and the preceding interval.
Conclusions:
- Findings support "multiple-look" and entrainment models of tempo sensitivity.
- Temporal prediction appears to rely more on the immediately preceding interval than the overall tempo contour.
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