Laterality Differences in the Auditory Feedback Control of Speech

1970 ◽  
Vol 13 (2) ◽  
pp. 298-303 ◽  
Author(s):  
James H. Abbs ◽  
Karl U. Smith

Proceeding from prior experimental evidence that better speech-sound identification most often occurs with right-ear presentation, an experiment was conducted to test for differences in speech production with right-ear and left-ear auditory feedback of one’s own speech. A hybrid-computer system and techniques of experimental programing were employed to control the intervals of aural delay. Presentation of delayed auditory feedback to the right ear during speech, with white noise masking the left ear, resulted in a significantly greater number of articulatory errors than did delayed feedback to the left ear with white noise masking the right ear. With a measure of total speaking time, however, similar differences between ears during delayed hearing were not found. The findings were interpreted as an indication of differences in aural function during auditory feedback control of speech. Such differences are consistent with aural laterality differences reported with speech identification.

2020 ◽  
Author(s):  
Muge Ozker ◽  
Werner Doyle ◽  
Orrin Devinsky ◽  
Adeen Flinker

AbstractAccurate and fluent production of speech strongly depends on hearing oneself which allows for the detection and correction of vocalization errors in real-time. When auditory feedback is disrupted with a time delay (e.g. echo on a conference call), it causes slowed and stutter-like speech in humans. Impaired speech motor control during delayed auditory feedback is implicated in various neurological disorders ranging from stuttering to aphasia, however the underlying neural mechanisms are poorly understood. Here, we investigated auditory feedback control in human speech by obtaining electrocorticographic recordings from neurosurgical subjects performing a delayed auditory feedback (DAF) task. We observed a significant increase in neural activity in auditory sites that scaled with the duration of feedback delay and correlated with response suppression during normal speech, providing direct evidence for a shared mechanism between sensitivity to altered feedback and speech-induced auditory suppression in humans. Furthermore, we find that when subjects robustly slowed down their speech rate to compensate for the delay, the dorsal division of the precentral gyrus was preferentially recruited to support articulation during an early time frame. This recruitment was accompanied by response enhancement across a large speech network commencing in temporal cortex and then engaging frontal and parietal sites. Our results highlight the critical components of the human speech network that support auditory feedback control of speech production and the temporal evolution of their recruitment.


Neuroreport ◽  
2020 ◽  
Vol 31 (4) ◽  
pp. 325-331
Author(s):  
Xiuqin Wu ◽  
Baofeng Zhang ◽  
Lirao Wei ◽  
Hanjun Liu ◽  
Peng Liu ◽  
...  

1971 ◽  
Vol 14 (2) ◽  
pp. 271-282 ◽  
Author(s):  
Sylvia A. Gammon ◽  
Philip J. Smith ◽  
Raymond G. Daniloff ◽  
Chin W. Kim

Eight subjects, half of them naive and the other half aware of the purpose of the experiment, spoke 30 pairs of sentences involving the production of intricate stress/juncture patterns along with a passage containing all major consonant phonemes in English in various intraword positions. All subjects spoke all materials under: (1) normal conditions, (2) 110 dB re: 0.0002 ubar white noise masking, (3) extensive local anesthesia of the oral cavity, and (4) masking and anesthesia combined. Stress and juncture patterns were correctly produced despite all feedback disruption, and there was no difference between naive and aware subjects. Noise masking produced a decline in speech quality and a disruption of normal rhythm, both of which were even more seriously affected by anesthesia and anesthesia plus masking. There were no significant vowel misarticulations under any condition, but there was nearly a 20% rate of consonant misartiqulation under anesthesia and anesthesia and noise. Mis-articulation was most severe for fricatives and affricates in the labial and alveolar regions, presumably because these productions demand a high degree of precision of articulate shape and location and hence, intact feedback. Results are discussed in terms of feedback-control mechanisms for speech production.


NeuroImage ◽  
2008 ◽  
Vol 39 (3) ◽  
pp. 1429-1443 ◽  
Author(s):  
Jason A. Tourville ◽  
Kevin J. Reilly ◽  
Frank H. Guenther

2009 ◽  
Vol 23 (14) ◽  
pp. 1849-1871 ◽  
Author(s):  
Jorge Solis ◽  
Koichi Taniguchi ◽  
Takeshi Ninomiya ◽  
Klaus Petersen ◽  
Tetsuro Yamamoto ◽  
...  

1988 ◽  
Vol 66 (2) ◽  
pp. 487-493 ◽  
Author(s):  
James Cantrell ◽  
Linda Petrosino ◽  
Donald Fucci ◽  
Rita Nance

Individual speakers vary widely in their reactions to delayed auditory feedback. In this pilot investigation, 21 adults with normal speech and hearing completed standardized readings under simultaneous and 200-msec. delayed auditory feedback. Minimally and maximally affected speakers were identified. Vibrotactile thresholds were obtained from the tongue and thenar eminence of the right hand for a group of five minimally and a group of five maximally affected speakers. Analysis showed that vibrotactile thresholds were lower (more sensitive) at both assessment sites for the group of maximally affected speakers. This finding is discussed in relation to the possible implications of heightened tactile sensitivity in the control of speech under delayed auditory feedback.


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