Differential effects of perturbation direction and magnitude on the neural processing of voice pitch feedback

Hanjun Liu, Michelle Meshman, Roozbeh Behroozmand, Charles R. Larson*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

65 Scopus citations


Objective: The present study examined the differential effects of voice auditory feedback perturbation direction and magnitude on voice fundamental frequency (F0) responses and event-related potentials (ERPs) from EEG electrodes on the scalp. Methods: The voice F0 responses and N1 and P2 components of ERPs were examined from 12 right-handed speakers when they sustained a vowel phonation and their mid-utterance voice pitch feedback was shifted ±100, ±200, and ±500cents with 200ms duration. Results: Downward voice pitch feedback perturbations led to larger voice F0 responses than upward perturbations. The amplitudes of N1 and P2 components were larger for downward compared with upward pitch-shifts for 200 and 500cents stimulus magnitudes. Shorter N1 and P2 latencies were also associated with larger magnitudes of pitch feedback perturbations. Conclusions: Corresponding changes in vocal and neural responses to upward and downward voice pitch feedback perturbations suggest that the N1 and P2 components of ERPs reflect neural concomitants of the vocal responses. Significance: The findings of interactive effects between the magnitude and direction of voice feedback pitch perturbation on N1 and P2 ERP components indicate that the neural mechanisms underlying error detection and correction in voice pitch auditory feedback are differentially sensitive to both the magnitude and direction of pitch perturbations.

Original languageEnglish (US)
Pages (from-to)951-957
Number of pages7
JournalClinical Neurophysiology
Issue number5
StatePublished - May 2011


  • Auditory feedback
  • Event-related potential (ERP)
  • N1-P2 complex
  • Pitch feedback perturbation
  • Vocalization

ASJC Scopus subject areas

  • Sensory Systems
  • Neurology
  • Clinical Neurology
  • Physiology (medical)


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