• Publications
  • Influence
Voice F0 responses to manipulations in pitch feedback.
It was found that neither the absolute level of feedback intensity nor the presence of pink masking noise significantly affect magnitude or latency of the voice F0 response, and the existence of a second F1 response with a longer latency than the first was suggested. Expand
Instructing subjects to make a voluntary response reveals the presence of two components to the audio-vocal reflex
Results demonstrate that there are two responses to pitch-shift stimuli, the first is relatively automatic but may be modulated by instructions to the participant, and the second response is probably a voluntary one. Expand
Voice F0 responses to pitch-shifted auditory feedback: a preliminary study.
Results indicate people normally rely on pitch feedback to control voice F0, and they increased their F0 when the feedback pitch was decreased and decreased when the pitch feedback was increased. Expand
The effects of taste and consistency on swallow physiology in younger and older healthy individuals: a surface electromyographic study.
Results revealed that the start of submental muscle activation was significantly later in older participants than in younger participants, and a more pronounced effect of taste was manifested as earlier submental or infrahyoid muscle activation when the three tastants were added to a thicker consistency. Expand
Vocalization-induced enhancement of the auditory cortex responsiveness during voice F0 feedback perturbation
Results indicate that the human auditory cortex is more responsive to voice F(0) feedback perturbations during vocalization than passive listening, which support previous suggestions regarding the enhanced auditory sensitivity to feedback alterations during self-vocalization. Expand
Understanding the neural mechanisms involved in sensory control of voice production
This study uses neuroimaging to identify regions of the brain responsible for sensory control of the voice and hypothesizes that the STG activity is related to error detection by auditory error cells located in the superior temporal cortex and efference copy mechanisms whereby this region is responsible for the coding of a mismatch between actual and predicted voice F0. Expand
Cross-modality influences in speech motor control: the use of pitch shifting for the study of F0 control.
  • C. Larson
  • Psychology, Medicine
  • Journal of communication disorders
  • 1 November 1998
Error-dependent modulation of speech-induced auditory suppression for pitch-shifted voice feedback
Findings of the present study suggest that the brain utilizes the motor predictions (efference copies) to determine the source of incoming stimuli and maximally suppresses the auditory responses to unaltered feedback of self-vocalizations. Expand
Early pitch-shift response is active in both steady and dynamic voice pitch control.
  • T. Burnett, C. Larson
  • Computer Science, Medicine
  • The Journal of the Acoustical Society of America
  • 4 September 2002
Results indicate that the early pitch-shift response is a general component of voice control that serves to automatically bring phonation pitch into agreement with an intended target, whether that target is constant or changing in time. Expand
Vocal responses to unanticipated perturbations in voice loudness feedback: an automatic mechanism for stabilizing voice amplitude.
Data from the present study suggest that voice loudness feedback can be used in a similar manner to monitor and stabilize voice amplitude around a desired loudness level. Expand