Enhancement of naming in nonfluent aphasia through gesture

Hanlon, Robert E.; Brown, Jason W.; Gerstman, Louis J.

doi:10.1016/0093-934x(90)90116-x

Cited by 108 publications

(37 citation statements)

References 25 publications

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“…Recently it has been reported that stimulation of a site in primary motor cortex of monkeys produced mouth opening and also caused the fingers to clench into a grip and move to the mouth (Graziano, Taylor, & Moore, 2002). It has also been shown that BrocaÕs area for speech production is activated by non-linguistic hand movements (Gallese et al, 1996) and in aphasics picture perception and naming is improved by simultaneous hand movements (Hanlon, Brown, & Gerstman, 1990). The preceding implies that hand gestures facilitate speech gestures.…”

Section: Introductionmentioning

confidence: 95%

Intentional and attentional dynamics of speech–hand coordination

Treffner

Peter

2002

Human Movement Science

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Interest is rapidly growing in the hypothesis that natural language emerged from a more primitive set of linguistic acts based primarily on manual activity and hand gestures. Increasingly, researchers are investigating how hemispheric asymmetries are related to attentional and manual asymmetries (i.e., handedness). Both speech perception and production have origins in the dynamical generative movements of the vocal tract known as articulatory gestures. Thus, the notion of a ''gesture'' can be extended to both hand movements and speech articulation. The generative actions of the hands and vocal tract can therefore provide a basis for the (direct) perception of linguistic acts. Such gestures are best described using the methods of dynamical systems analysis since both perception and production can be described using the same commensurate language. Experiments were conducted using a phase transition paradigm to examine the coordination of speech-hand gestures in both left-and right-handed individuals. Results address coordination (in-phase vs. anti-phase), hand (left vs. right), lateralization (left vs. right hemisphere), focus of attention (speech vs. tapping), and how dynamical constraints provide a foundation for human communicative acts. Predictions from the asymmetric HKB equation confirm the attentional basis of functional asymmetry. Of significance is a new understanding of the role of perceived synchrony (p-centres) during intentional cases of gestural coordination.

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Section: Introductionmentioning

confidence: 95%

Intentional and attentional dynamics of speech–hand coordination

Treffner

Peter

2002

Human Movement Science

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“…Second, both listening and observing speech movements causes an increase of motor evoked potentials recorded from tongue and lip muscles (Watkins, Strafella, & Paus, 2003;Pulvermüller & Fadiga, 2010). Finally, evidence for a link between gesturing and the speech system also comes from clinical studies: Hanlon, Brown and Gerstman (1990) showed that aphasic patients' object naming benefits from pointing with the right hand to the referents.…”

Section: Introductionmentioning

confidence: 99%

Vision, action and language unified through embodiment

Caligiore

Fischer

2012

Psychological Research

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“…It is well accepted that TOT retrieval failures in normal subjects tend to be phonological rather than semantic (Brown and McNeill 1966;Jones and Langford 1987;Kohn et al 1987;Jones 1989;Brown 1991;Meyer and Bock 1992), and there is some evidence that preventing gesturing increases retrieval failures in the TOT situation (Frick-Horbury and Guttentag, in press). In the same vein, Broca's aphasics tend to produce very high proportions of lexical gestures (Cicone et al 1979;McNeill 1992), and their ability to name also seems to benefit from intentionally performing a gesture prior to naming (Hanlon et al 1990). However, there is some disagreement on the nature of naming problems in Broca's aphasia.…”

Section: The Input From Gesture To Speechmentioning

confidence: 99%

“…In a very different kind of study, Hanlon et al (1990) showed that aphasic patients' word retrieval in a picture naming task could be improved by training them to perform gestures just prior to their naming attempt.…”

Section: Gesture and Word Retrievalmentioning

confidence: 99%