Transient sex differences during adolescence on auditory perceptual tasks

Area of Science:

• Neuroscience
• Developmental Psychology
• Auditory Perception

Background:

• Perceptual abilities often exhibit sex differences, traditionally attributed to distinct neural circuitry developed and maintained throughout life.
• Previous research has primarily focused on adult populations, limiting understanding of the developmental origins of these sex differences.

Purpose of the Study:

• To investigate alternative origins of behavioral sex differences in perception beyond fixed neural circuitry.
• To examine developmental trajectories of auditory perception tasks in males and females.

Main Methods:

• Compared performance of males and females aged 8–30 years on auditory temporal-interval discrimination and tone-in-noise detection tasks.
• Analyzed data for emergence and resolution of sex differences across developmental stages.

Main Results:

• Sex differences emerged during adolescence and resolved by adulthood in two of six auditory tasks, with a similar trend in a third.
• Males achieved mature performance earlier than females, creating temporary sex-based disparities in perceptual abilities.
• No sex differences were observed in adults on these specific tasks, contrasting with developmental findings.

Conclusions:

• Sex differences in perception may stem from variations in the maturational timing of shared neural circuitry, rather than sex-specific circuits.
• These findings suggest that sex differences in perceptual abilities might be more widespread than previously recognized, especially during developmental periods.