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Related Experiment Video

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"Deafness" effects in detecting alterations to auditory feedback during sequence production.

Peter Q Pfordresher¹

¹Department of Psychology, University at Buffalo, State University of New York, 355 Park Hall, Buffalo, NY, 14260, USA, pqp@buffalo.edu.

Psychological Research

|January 25, 2013

Summary

Performers exhibit a selective "deafness" to delayed auditory feedback during melody production, particularly when it matches their perceptual goals. This finding suggests that planned motor events are suppressed during sequence production.

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Area of Science:

Cognitive Psychology
Auditory Perception
Motor Control

Background:

Previous research indicates goal-directed responses can impair perception of matching stimuli.
The extension of this effect to sequence production remains largely unexplored.

Purpose of the Study:

To investigate whether perceptual "deafness" effects observed in discrete response tasks extend to sequence production.
To examine the role of feedback congruency and timing in motor sequence tasks.

Main Methods:

Three experiments involved participants performing 8-note melodies with altered feedback tones (pitch/synchrony).
Tasks included melody repetition, single-key pitch sequencing, and reversed key-to-pitch mapping.
Detection of altered feedback was measured under various conditions.

Main Results:

A selective deficit in detecting altered feedback occurred when pitch was unchanged and the event was slightly delayed.
This "deafness" was specific to rhythmic motor sequencing tasks, not single-key pitch production.
Reversing key-to-pitch mappings did not alter the observed selective deafness.

Conclusions:

Results suggest a specific "deafness" to response-congruent delayed feedback during sequence production.
This phenomenon supports theories of motor control involving the suppression of previously planned events.