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Hemispheric asymmetry and deception detection.
Sarah Malcolm1, Julian Paul Keenan
1Cognitive Neuroimaging Laboratory, Montclair State University, Upper Montclair, NJ 07043, USA.
Laterality
|April 26, 2005
Summary
This study found a significant left ear advantage in deception detection. Participants more accurately identified true and false statements when presented to their left ear, supporting a right hemisphere role.
Area of Science:
- Cognitive Neuroscience
- Psychology
Background:
- Previous research suggests a right hemisphere advantage in deception detection.
- A left ear advantage has been noted for decoding deceptive statements.
Purpose of the Study:
- To investigate the role of the right hemisphere in deception detection.
- To examine left ear advantage in identifying true and false statements.
Main Methods:
- 32 undergraduate students listened to 112 true/false statements.
- Statements were presented unilaterally to the left or right ear.
- Participants responded using left/right hand to indicate truthfulness.
Main Results:
- A significant advantage (p < .004) was found for the left ear.
- The left ear facilitated more accurate detection of true and false statements.
Conclusions:
- Findings support a left ear/right hemisphere advantage in deception detection.
- Results replicate and extend prior research on auditory processing and deception.