Relationships between vocal pitch perception and production: a developmental perspective

Area of Science:

• Speech and Hearing Sciences
• Developmental Psychology
• Neuroscience

Background:

• Vocal production relies on auditory feedback for real-time adjustments.
• Auditory perception and vocal motor control develop throughout childhood.
• Individual differences in pitch discrimination may impact vocal responses.

Purpose of the Study:

• To investigate the relationship between vocal pitch discrimination and vocal responses to auditory pitch-shifts in children and adults.
• To explore how varying auditory feedback affects vocal production in different age groups.
• To determine if children with less sensitive pitch discrimination exhibit distinct vocal control strategies.

Main Methods:

• Participants (children and adults) completed auditory tasks assessing vocal fundamental frequency (f_o) discrimination.
• Real-time auditory pitch-shifts (unexpected and sustained) were applied during vocalization tasks.
• Children were grouped based on auditory pitch discrimination relative to adult norms.

Main Results:

• Children with less sensitive pitch discrimination showed larger vocal responses to unexpected pitch-shifts.
• These children exhibited smaller vocal responses to sustained pitch-shifts.
• Significant differences in vocal response magnitude were observed based on discrimination ability.

Conclusions:

• Less sensitive pitch discrimination in children is linked to altered vocal responses to pitch perturbations.
• Children with poorer pitch discrimination may depend more heavily on auditory feedback.
• These findings suggest potential difficulties in updating motor programs for vocalization in children with less sensitive auditory discrimination.