The visual regulation of goal-directed reaching movements in adults with Williams syndrome, Down syndrome, and other developmental delays.
Williams syndrome (WS) is a genetic disorder that causes general cognitive and developmental delays. Compared to persons with Down syndrome (DS) at the same developmental level, individuals with WS generally exhibit superior expressive language abilities, but have difficulty with tasks that require...
| Publicado en: | Motor Control Vol. 10; no. 1; pp. 34 - 55 |
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| Autores principales: | , , , , , , , , , |
| Formato: | clinical trial pictorial research tables/charts Journal Article |
| Publicado: |
Human Kinetics Publishers, Inc.
Jan2006
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106018711&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106018711 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10871640 IX5 jtl: Motor Control issn: 10871640 maglogo: N pubinfo: dt: Jan2006 vid: 10 iid: 1 pid: 553 pub: Human Kinetics Publishers, Inc. place: Champaign, Illinois artinfo: ui: 106018711 106018711 NLM16571907 2009332510 10.1123/mcj.10.1.34 NLM16571907 106018711 ppf: 34 ppct: 21 formats: tig: atl: The visual regulation of goal-directed reaching movements in adults with Williams syndrome, Down syndrome, and other developmental delays. aug: au: Elliott D Welsh TN Lyons J Hansen S Wu M Elliott, Digby Welsh, Timothy N Lyons, James Hansen, Steve Wu, Melinda affil: Department of Kinesiology, McMaster University, Hamilton, ON, Canada sug: subj: Down Syndrome Physiopathology Intellectual Disability Physiopathology Movement Psychomotor Performance Visual Perception Williams Syndrome Physiopathology Adult Analysis of Variance Biomechanics Clinical Trials Female Male Perception Reaction Time Human Adult: 19-44 years Female Male ab: Williams syndrome (WS) is a genetic disorder that causes general cognitive and developmental delays. Compared to persons with Down syndrome (DS) at the same developmental level, individuals with WS generally exhibit superior expressive language abilities, but have difficulty with tasks that require the visual control of movement. Recently it has been suggested that this latter problem reflects a deficit in dorsal stream function. In the present study, this hypothesis was investigated by examining the kinematics of rapid aiming movements. The performance of the participants with WS (n=4) was compared to the performance of participants with DS (n=8), with undifferentiated developmental delays (n=8), and from the general population (n=8). In partial support of the dorsal deficit hypothesis, the results suggest that, compared to people from the other groups, the participants with WS had difficulty in preparing their movements on the basis of the visual and other information available to them. This was particularly evident in their inability to properly scale movement velocities to the amplitude of the movements and in the number of discrete corrections made during movement execution. pubtype: Academic Journal doctype: clinical trial pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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