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Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique

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On sex-related differences in auditory and visual sensory functioning.

Thomas H Rammsayer¹, Stefan J Troche

¹Department of Psychology, University of Bern, Muesmattstrasse 45, 3000, Bern 9, Switzerland. thomas.rammsayer@psy.unibe.ch

Archives of Sexual Behavior

|December 21, 2011

Summary

Men show better pitch and loudness discrimination than women, with intelligence and musical training influencing these sensory functions. Brightness discrimination showed no significant sex differences.

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Area of Science:

Sensory neuroscience
Human perception
Psychophysics

Background:

Sensory discrimination of pitch, loudness, and brightness are crucial for daily life.
Limited research exists on sex-related differences in these fundamental sensory functions.

Purpose of the Study:

To investigate sex-related differences in pitch, loudness, and brightness discrimination.
To explore the relationship between sensory discrimination, psychometric intelligence, and musical background.

Main Methods:

100 men and 100 women (ages 18-30) participated.
Sensory discrimination tasks for pitch, loudness, and brightness were administered.
Measures of psychometric intelligence and musical background were collected.

Main Results:

Men outperformed women in pitch and loudness discrimination.
No significant sex differences were observed in brightness discrimination.
Pitch discrimination correlated positively with intelligence and musical training; loudness discrimination correlated positively with intelligence.

Conclusions:

Sex, intelligence, and musical training significantly predict pitch discrimination.
Sex significantly predicts loudness discrimination, while intelligence shows a near-significant trend.
The findings suggest potential sex hormone influences on sensory perception differences.