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Psychophysiological responses to auditory change.

Lorraine Chuen¹, David Sears², Stephen McAdams²

¹Department of Psychology, McGill University, Montreal, Quebec, Canada.

Psychophysiology

|March 2, 2016

Summary

This summary is machine-generated.

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Simple auditory changes, like those in music, can alter heart rate, skin conductance, and respiration. These physiological responses may be influenced by acoustic factors, not just emotions.

Area of Science:

Auditory Neuroscience
Psychophysiology
Music Cognition

Background:

A detailed understanding of autonomic and somatic responses to auditory stimuli is limited.
Auditory changes are frequent in music listening and may elicit physiological reactions.

Purpose of the Study:

To investigate if basic auditory changes can induce measurable physiological responses.
To differentiate acoustic influences from emotional responses in psychophysiological studies of music.

Main Methods:

Participants listened to isochronous tone sequences with variations in pitch, timbre, duration, intensity, or tempo.
Physiological measures included heart rate, skin conductance, respiration rate, and facial motor activity.

Main Results:

Keywords:

Auditory change Facial EMG Heart rate Respiration rate Skin conductance

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All tested auditory changes increased heart rate.
Skin conductance responses varied with changes in timbre, intensity, and tempo.
Respiratory rate changes were linked to rhythmic deviations (isochrony).

Conclusions:

Acoustic properties of sound, independent of emotional content, significantly impact physiological responses.
Researchers should account for acoustic factors when interpreting physiological data as indicators of emotion in music perception.