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Contributors:
  1. Daniel J. Acheson
  2. Frank Eisner

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Description: When talking, speakers continuously monitor and use the auditory feedback of their own voice to control and inform speech production processes. When speakers are provided with auditory feedback that is perturbed in real time, most of them compensate for this by opposing the feedback perturbation. But some speakers follow the perturbation. In the current study we investigated whether the state of the speech system at perturbation onset may determine what type of response (opposing or following) is given. The results suggest that whether a perturbation-related response is opposing or following depends on ongoing fluctuations of the speech system: The motor system initially responds by doing the opposite of what it was doing. This effect and the non-trivial proportion of following responses suggest that current production models are inadequate: They need to account for why responses to unexpected sensory feedback depend on the production-system’s state at the time of perturbation.

License: CC-By Attribution 4.0 International

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Analysis scripts: Opposing and following responses in sensorimotor speech control

Analysis scripts for project "Opposing and following responses in sensorimotor speech control: Why responses go both ways"

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