Dissociating the processing of operatic and natural vocal sounds through interference effects on working memory

Area of Science:

• Cognitive Neuroscience
• Auditory Perception
• Music Cognition

Background:

• Operatic singing training profoundly impacts brain structure and function.
• The neural representation of operatic versus natural singing voices in opera singers is not well understood.

Purpose of the Study:

• Investigate differential neural representation of operatic and natural singing styles in working memory (WM).
• Compare opera singers and amateur choir singers' WM performance for distinct vocal styles.

Main Methods:

• Used a distractor interference paradigm to assess WM for operatic and natural singing styles.
• Tested professionally trained opera singers and amateur choir singers.

Main Results:

• Distractor effects on WM for operatic voices differed significantly based on distractor type (P=0.0011).
• WM performance for operatic voices was higher with congruent operatic distractors versus incongruent natural distractors (P=0.0043).

Conclusions:

• Operatic and natural voice distractors differentially affect WM performance for operatic voices.
• Partially separate neural resources may maintain natural and operatic voices in WM, regardless of training.