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Vocal cues to deception: a comparative channel approach.

K R Scherer, S Feldstein, R N Bond

Journal of Psycholinguistic Research

|July 1, 1985

Summary

Vocal cues leak emotional information, even when masked. Voice quality cues are particularly important for detecting deception in speech, with potential gender differences in decoding ability.

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Area of Science:

Psychology
Linguistics
Communication Studies

Background:

Understanding the leakage of emotional information in speech is crucial for accurate interpersonal communication.
Previous research has explored vocal cues but often lacks controlled masking designs to isolate specific cue types.

Purpose of the Study:

To investigate the leakage potential of various voice and speech cues.
To determine which specific vocal cues are most implicated in conveying emotional information.
To examine potential gender differences in the ability to decode vocal emotional leakage.

Main Methods:

Utilized speech samples from 15 female nursing students who either faked negative affect or told the truth about positive affect.
Employed a cue isolation and masking design with conditions including electronic filtering, random splicing, backwards speech, pitch inversion, and tone-silence sequences.
Judges rated speech samples across these varied masking conditions to assess information leakage.

Main Results:

Vocal cues were confirmed to carry significant leakage information.
Voice quality cues emerged as centrally implicated in conveying emotional leakage, as indicated by differences across masking conditions.
Gender differences in decoding abilities were observed and discussed.

Conclusions:

Vocal cues are a reliable source of emotional leakage, even under conditions designed to obscure them.
Voice quality is a key channel for emotional information transmission in speech.
Further research into gender-specific decoding abilities for vocal emotional cues is warranted.

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