Cortical processing mechanism for vocalization with auditory verbal feedback

Hirano, Shigeru; Kojima, Hisayoshi; Naito, Yasushi; Honjo, Iwao; Kamoto, Yoko; Okazawa, Hidehiko; Ishizu, Koji; Yonekura, Yoshiharu; Nagahama, Yasuhiro; Fukuyama, Hidenao; Konishi, Junji

doi:10.1097/00001756-199707070-00055

Cited by 101 publications

(66 citation statements)

References 3 publications

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“…Our results indicate, however, that its role might be different than previously suggested [Hirano et al, 1997;McGuire et al, 1996]. We found no evidence that the STG is more activated when the feedback was present than when it was masked.…”

Section: Discussioncontrasting

confidence: 99%

“…This explanation provides an alternative account for the lack of STG activity reported by Hirano et al [1996] when comparing reading aloud short sentences and syllables to the resting baseline. Hirano et al [1997] suggested that no speech-monitoring takes place for speaking of familiar sentences to explain the lack of STG activity in that study. This seems unlikely, since in our study only single high-frequency words were produced.…”

Section: Discussionmentioning

confidence: 70%

“…In contrast, no STG activity was found in a PET study during articulation of common sentences [Hirano et al, 1996]. However, in a later study, feedback was manipulated by filtering and delaying the verbal output, which resulted in more bilateral activation of the STG [Hirano et al, 1997]. More recently, using fMRI, Hashimoto and Sakai [2003] reported more activation in the temporo-parietal regions for delayed auditory feedback conditions than for normal feedback.…”

Section: Introductionmentioning

confidence: 90%

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Neural correlates of verbal feedback processing: An fMRI study employing overt speech

Christoffels

Formisano

Schiller

2007

Human Brain Mapping

190

174

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Speakers use external auditory feedback to monitor their own speech. Feedback distortion has been found to increase activity in the superior temporal areas. Using fMRI, the present study investigates the neural correlates of processing verbal feedback without distortion. In a blocked design, the following conditions were presented: (1) overt picture-naming, (2) overt picture-naming while pink noise was presented to mask external feedback, (3) covert picture-naming, (4) listening to the picture names (previously recorded from participants' own voices), and (5) listening to pink noise. The results show that auditory feedback processing involves a network of different areas related to general performance monitoring and speech-motor control. These include the cingulate cortex and the bilateral insula, supplementary motor area, bilateral motor areas, cerebellum, thalamus and basal ganglia. Our findings suggest that the anterior cingulate cortex, which is often implicated in error-processing and conflict-monitoring, is also engaged in ongoing speech monitoring. Furthermore, in the superior temporal gyrus, we found a reduced response to speaking under normal feedback conditions. This finding is interpreted in the framework of a forward model according to which, during speech production, the sensory consequence of the speech-motor act is predicted to attenuate the sensitivity of the auditory cortex. Hum Brain Mapp 28: [868][869][870][871][872][873][874][875][876][877][878][879] 2007. V V C 2007 Wiley-Liss, Inc.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 70%

Section: Introductionmentioning

confidence: 90%

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Neural correlates of verbal feedback processing: An fMRI study employing overt speech

Christoffels

Formisano

Schiller

2007

Human Brain Mapping

190

174

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“…4A). Increased bilateral activation of posterior temporal regions during perturbation speech is consistent with previous results from studies of auditory feedback disruption, including delayed auditory feedback (Hirano et al, 1997;Hashimoto and Sakai, 2003), pitch perturbation (McGuire et al, 1996;Zarate and Zatorre, 2005;Fu et al, 2006) and noise masking (Christoffels et al, 2007) Numerous lines of evidence support the hypothesis that the expected consequences of articulation and resulting auditory feedback are compared in posterior temporal cortex (see Guenther et al, 2006 for detailed discussion). Portions of posterior left PT and lateral pSTg bilaterally have been shown to respond during both speech perception and speech production in several studies (Hickok et al, 2003;Buchsbaum et al, 2005).…”

Section: The Auditory Feedback Control Networksupporting

confidence: 85%

Neural mechanisms underlying auditory feedback control of speech

2008

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The neural substrates underlying auditory feedback control of speech were investigated using a combination of functional magnetic resonance imaging (fMRI) and computational modeling. Neural responses were measured while subjects spoke monosyllabic words under two conditions: (i) normal auditory feedback of their speech, and (ii) auditory feedback in which the first formant frequency of their speech was unexpectedly shifted in real time. Acoustic measurements showed compensation to the shift within approximately 135 ms of onset. Neuroimaging revealed increased activity in bilateral superior temporal cortex during shifted feedback, indicative of neurons coding mismatches between expected and actual auditory signals, as well as right prefrontal and Rolandic cortical activity. Structural equation modeling revealed increased influence of bilateral auditory cortical areas on right frontal areas during shifted speech, indicating that projections from auditory error cells in posterior superior temporal cortex to motor correction cells in right frontal cortex mediate auditory feedback control of speech.

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“…A positron emission tomography (PET) study has reported activation increases in the bilateral superior temporal gyri (STG) for reading aloud single words with modified feedback (by pitch elevation or in someone else's voice) [McGuire et al, 1996]. Another PET study has reported that activation in the bilateral STG was observed during the overtspeech processing under DAF compared to the resting condition, but not during the overt-speech processing under RAF compared to the resting condition [Hirano et al, 1997]. These results suggest that the bilateral STG is recruited under speech conditions with abnormal feedback, but this activation may be confounded by either enhanced attention to altered speech sounds or by slower speech rates under DAF.…”

Section: Introductionmentioning

confidence: 99%

Brain activations during conscious self‐monitoring of speech production with delayed auditory feedback: An fMRI study

Hashimoto

Sakai

2003

Human Brain Mapping

158

141

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Abstract:When a speaker's voice returns to one's own ears with a 200-ms delay, the delay causes the speaker to speak less fluently. This phenomenon is called a delayed auditory feedback (DAF) effect. To investigate neural mechanisms of speech processing through the DAF effect, we conducted a functional magnetic resonance imaging (fMRI) experiment, in which we designed a paradigm to explore the conscious overt-speech processing and the automatic overt-speech processing separately, while reducing articulatory motion artifacts. The subjects were instructed to (1) read aloud visually presented sentences under real-time auditory feedback (NORMAL), (2) read aloud rapidly under real-time auditory feedback (FAST), (3) read aloud slowly under real-time auditory feedback (SLOW), and (4) read aloud under DAF (DELAY). In the contrasts of DELAY-NORMAL, DELAY-FAST, and DELAY-SLOW, the bilateral superior temporal gyrus (STG), the supramarginal gyrus (SMG), and the middle temporal gyrus (MTG) showed significant activation. Moreover, we found that the STG activation was correlated with the degree of DAF effect for all subjects. Because the temporo-parietal regions did not show significant activation in the comparisons among NORMAL, FAST, and SLOW conditions, we can exclude the possibility that its activation is due to speech rates or enhanced attention to altered speech sounds. These results suggest that the temporo-parietal regions function as a conscious self-monitoring system to support an automatic speech production system. Hum. Brain Mapping 20:22-28, 2003.

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Cortical processing mechanism for vocalization with auditory verbal feedback

Cited by 101 publications

References 3 publications

Neural correlates of verbal feedback processing: An fMRI study employing overt speech

Neural correlates of verbal feedback processing: An fMRI study employing overt speech

Neural mechanisms underlying auditory feedback control of speech

Brain activations during conscious self‐monitoring of speech production with delayed auditory feedback: An fMRI study

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