Why the study?
Do very low frequency sounds affect heart rate, peripheral temperature, and subjective sensations in human subjects?
Do very low frequency sounds affect heart rate, peripheral temperature, and subjective sensations in human subjects?
Very low frequency sounds did not significantly affect heart rate or peripheral temperature, but did produce significant differences in subjective evaluations.
Very low frequency sounds lack detectable effects on heart rate or temperature; extends evidence by dissociating subjective from physiological responses.
25 subjects were randomly assigned to 4 experimental conditions ‐10 Hz/110 dB, 20 Hz/97 dB, 40 Hz/89 dB and 80 Hz/68 dB‐ and a control condition without sound. The effects on heart rate and peripheral temperature, subjective evaluation of sound and body sensations were measured. A Threshold curve plotted for 10, 20 and 40 Hz indicated similarities with results obtained by other authors. ANOVA results showed the following: a) Non‐significant differences among groups for the physiological variables; and b) significant differences among groups in some of the subjective evaluations of sounds. Body sensations produced by the different sounds on the subjects are reported.
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Fuchs et al. (1995) studied this question.
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