|
Research article summary:
Gaze pursuit and arm control of adolescent males diagnosed with attention deficit hyperactivity disorder (ADHD) and normal controls: evidence of a dissociation in processing visual information of short and long duration.
Abstract Extract:
Three-dimensional kinematic analysis of line of gaze, arm and ball was used to describe the visual and motor behaviour of male adolescents diagnosed with attention deficit hyperactivity disorder (ADHD). The ADHD participants were tested when both on ... (Full abstract text below) Published 2002Mar
in Journal: J Sports Sci
(Language : eng)
Full Pubmed Extract
This information was retrieved, real-time, on your behalf from the public area of the Pubmed website:
1. J Sports Sci.
2002 Mar;20(3):201-16
Gaze pursuit and arm control of adolescent males diagnosed with attention deficit hyperactivity disorder (ADHD) and normal controls: evidence of a dissociation in processing visual information of short and long duration.
Vickers JN, Rodrigues ST, Brown LN
Neuro-Motor Psychology Laboratory, The University of Calgary, Alberta, Canada. vickers@ucalgary.ca
Three-dimensional kinematic analysis of line of gaze, arm and ball was used to describe the visual and motor behaviour of male adolescents diagnosed with attention deficit hyperactivity disorder (ADHD). The ADHD participants were tested when both on (ADHD-On) and off (ADHD-Off) their medication and compared to age-matched normal controls in a modified table tennis task that required tracking the ball and hitting to cued right and left targets. Long-duration information was provided by a pre-cue, in which the target was illuminated approximately 2 s before the serve, and short-duration information by an early-cue illuminated about 350 ms after the serve, leaving approximately 500 ms to select the target and perform the action. The ADHD groups differed significantly from the control group in both the pre-cue and early-cue conditions in being less accurate, in having a later onset and duration of pursuit tracking, and a higher frequency of gaze on and off the ball. The use of medication significantly reduced the gaze frequency of the ADHD participants, but surprisingly this did not lead to an increase in pursuit tracking, suggesting a barrier was reached beyond which ball flight information could not be processed. The control and ADHD groups did not differ in arm movement onset, duration and velocity in the short-duration early-cue condition; in the long-duration pre-cue condition, however, the ADHD group's movement time onset and arm velocity differed significantly from controls. The results show that the ADHD groups were able to process short-duration information without experiencing adverse effects on their motor behaviour; however, long-duration information contributed to irregular movement control.
PMID : 11999476 [PubMed - Indexed for MEDLINE]
This information is obtained from the National Library of Medicine (NLM). Abstract text and other information may be subject to copyright. Type "NLM copyright" into Google for more information.
Full Author Information
| First Name | LastName | Initials |
| Joan N | Vickers | JN |
| Sergio T | Rodrigues | ST |
| Lenora N | Brown | LN |
Affiliation: Neuro-Motor Psychology Laboratory, The University of Calgary, Alberta, Canada. vickers@ucalgary.ca
3rd Party provider links
Click the links below to go to related 3rd party information:
MESH categories and related page links
This article was linked to the MESH categories shown on the left below. The links on the right are related Memletics pages.
Category links from this article: | | Related Memletics topics: |
Links for this articleFor links to places where you can get the full text of this article see links. Note there may be a subscription or fee required for access to the full text. New! Using similar technology to this site, we have launched find-health-articles.com, targeting over 1 million health research article abstracts. Related ArticlesHere are some articles related to this one (by title keywords): Keywords in this article:accurate, action, adhd, adolescents, adverse, after, age, analysis, approximately, arm, attention, ball, barrier, behaviour, beyond, compared, conditions, contributed, controls, cued, deficit, describe, diagnosed, differed, dimensional, disorder, duration, early, effects, experiencing, flight, frequency, gaze, groups, higher, hitting, hyperactivity, illuminated, increase, information, irregular, kinematic, later, lead, leaving, left, less, line, long, male, matched, medication, modified, motor, movement, ms, normal, not, off, onset, participants, perform, pre, processed, provided, pursuit, reached, reduced, required, results, right, select, serve, short, suggesting, surprisingly, table, targets, task, tennis, tested, three, time, tracking, velocity, visual
|
