Sensorimotor Adaptation of Speech I: Compensation and Adaptation

Houde, John F.; Jordan, Michael I.
April 2002
Journal of Speech, Language & Hearing Research;Apr2002, Vol. 45 Issue 2, p295
Academic Journal
When motor actions (e.g., reaching with your hand) adapt to altered sensory feedback (e.g., viewing a shifted image of your hand through a prism), the phenomenon is called sensorimotor adaptation (SA). In the study reported here, SA was observed in speech. In two 2-hour experiments (adaptation and control), participants whispered a variety of CVC words. For those words containing the vowel /ε/, participants heard auditory feedback of their whispering. A DSP-based vocoder processed the participants' auditory feedback in real time, allowing the formant frequencies of participants' auditory speech feedback to be shifted. In the adaptation experiment, formants were shifted along one edge of the vowel triangle. For half the participants, formants were shifted so participants heard /a/ when they produced /ε/; for the other half, the shift made participants hear /I/ when they produced /ε/. During the adaptation experiment, participants altered their production of /ε/ to compensate for the altered feedback, and these production changes were retained when participants whispered with auditory feedback blocked by masking noise. In a control experiment, in which the formants were not shifted, participants' production changes were small and inconsistent. Participants exhibited a range of adaptations in response to the altered feedback, with some participants adapting almost completely, and other participants showing very little or no adaptation.


Related Articles

  • Speech recognition and sensory integration. Massaro, Dominic W.; Stork, David G. // American Scientist;May/Jun98, Vol. 86 Issue 3, p236 

    Describes the elements of integrating sensory information to recognize speech. Demonstration of a bimodal nature of speech understanding; Description of the McGurk effect; Study of a bimodal speech perception; Important research benefits of complementarity; Assumptions of the fuzzy-logical...

  • Spatiotemporal stability of lip movements in older adult speakers. Wohlert, Amy B.; Smith, Anne // Journal of Speech, Language & Hearing Research;Feb1998, Vol. 41 Issue 1, p41 

    Examines the effects of age-related changes that occur in the sensorimotor system of adults on the variability of their speech movements. Analysis of oral peripheral abilities; Speech rate; Speech kinematics; Discussion of the spatiotemporal index; Impact of the sensorimotor changes in old age...

  • The effects of sensory integration therapy on verbal expression and engagement in children with autism. Preis, Janet; McKenna, Meaghan // International Journal of Therapy & Rehabilitation;Oct2014, Vol. 21 Issue 10, p476 

    Background/Aim: Sensory-based interventions, including sensory integration therapy (SIT), are one of the most highly requested and provided services for children with autism spectrum disorders (ASDs). Although SIT is predominantly provided by occupational therapists, other service providers,...

  • Somatosensory Gating Is Dependent on the Rate of Force Recruitment in the Human Orofacial System. Andreatta, Richard D.; Barlow, Steven M. // Journal of Speech, Language & Hearing Research;Dec2009, Vol. 52 Issue 6, p1566 

    Purpose: Functional orofacial behaviors vary in their force endpoint and rate of recruitment. This study assessed the gating of orofacial cutaneous somatosensation during different cyclic lip force recruitment rates. Understanding how differences in the rate of force recruitment influences...

  • A Meme's Eye View of Speech-Language Pathology.  // Language, Speech & Hearing Services in Schools;Apr2004, Vol. 35 Issue 2, p105 

    In this article, the reason why certain terms, labels, and ideas prevail, whereas others fail to gain acceptance, will be considered. Borrowing the concept of "meme" from the study of evolution of ideas, it will be clear why language-based and phonological disorders have less widespread appeal...

  • Computational Neural Modeling of Speech Motor Control in Childhood Apraxia of Speech (CAS). Terband, Hayo; Maassen, Ben; Guenther, Frank H.; Brumberg, Jonathan // Journal of Speech, Language & Hearing Research;Dec2009, Vol. 52 Issue 6, p1595 

    Purpose: Childhood apraxia of speech (CAS) has been associated with a wide variety of diagnostic descriptions and has been shown to involve different symptoms during successive stages of development. In the present study, the authors attempted to associate the symptoms of CAS in a particular...

  • Intersensory integration: A kinesthetic bias. Kerr, Robert // Perceptual & Motor Skills;Dec94, Vol. 79 Issue 3, p1068 

    Focuses on intersensory or sensorimotor integration. Results of intramodal and cross-modal tasks performed by four groups of five subjects. Stimuli to be matched; Positions of a moveable intercept; Practice of matching one combination and giving knowledge; Relation between having received...

  • Auditory cortical deactivation during speech production and following speech perception: an EEG investigation of the temporal dynamics of the auditory alpha rhythm. Jenson, David; Harkrider, Ashley W.; Thornton, David; Bowers, Andrew L.; Saltuklaroglu, Tim // Frontiers in Human Neuroscience;Oct2015, Vol. 9, p1 

    Sensorimotor integration (SMI) across the dorsal stream enables online monitoring of speech. Jenson et al. (2014) used independent component analysis (ICA) and event related spectral perturbation (ERSP) analysis of electroencephalography (EEG) data to describe anterior sensorimotor (e.g.,...

  • Suppression of the µ Rhythm during Speech and Non-Speech Discrimination Revealed by Independent Component Analysis: Implications for Sensorimotor Integration in Speech Processing. Bowers, Andrew; Saltuklaroglu, Tim; Harkrider, Ashley; Cuellar, Megan // PLoS ONE;Aug2013, Vol. 8 Issue 8, p1 

    Background: Constructivist theories propose that articulatory hypotheses about incoming phonetic targets may function to enhance perception by limiting the possibilities for sensory analysis. To provide evidence for this proposal, it is necessary to map ongoing, high-temporal resolution changes...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics