title: Eye movements show similar adaptations in temporal coordination to movement planning conditions in both people with and without cerebral palsy.
abstract: The effects of cerebral palsy on movement planning for simple reaching tasks are not well understood. Movement planning is complex and entails many processes which could be affected. This study specifically sought to evaluate integrating task information, decoupling movements, and adjusting to altered mapping. For a reaching task, the asynchrony between the eye onset and the hand onset was measured across different movement planning conditions for participants with and without cerebral palsy. Previous research shows people without cerebral palsy vary this temporal coordination for different planning conditions. Our measurements show similar adaptations in temporal coordination for groups with and without cerebral palsy, to three of the four variations in planning condition tested. However, movement durations were still longer for the participants with cerebral palsy. Hence for simple goal-directed reaching, movement execution problems appear to limit activity more than movement planning deficits.
authors.affiliation: University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand. apay876@aucklanduni.ac.nz.
authors.forename: Alexander R
authors.initials: AR
authors.lastname: Payne
authors.affiliation: University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
authors.forename: Beryl
authors.initials: B
authors.lastname: Plimmer
authors.affiliation: University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
authors.forename: Andrew
authors.initials: A
authors.lastname: McDaid
authors.affiliation: University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
authors.forename: T Claire
authors.initials: TC
authors.lastname: Davies
mesh_terms: D000222:Adaptation, Physiological / Q000502:physiology*; D000293:Adolescent; D000328:Adult; D002547:Cerebral Palsy / Q000503:physiopathology*; D002648:Child; D005133:Eye Movements / Q000502:physiology*; D005260:Female; D007839:Functional Laterality; D006040:Goals; D006225:Hand; D006801:Humans; D008297:Male; D009068:Movement / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology; D013997:Time Factors; D055815:Young Adult
keywords: Cerebral palsy; Eye movements; Eye-hand coordination; Goal-directed reaching; Onset asynchrony