Aged-related differences in the attentional cost of pointing movements.
The aim of the present study was to analyze, in children aged 6, 8 and 11, the developmental trend of the attentional cost related to the programming and execution of pointing movements, using a dual-task paradigm. Our results showed that the attentional cost associated to the programming and the first phase of the pointing movement decreased non linearly with age, in particular a plateau between 8 and 11 was observed. This confirmed that the developmental trend of the control of pointing movements is characterized by a no monotonic evolution in which feedforward processes were predominantly used in the younger children, feedback processes were predominantly used in older children (since age 8), and one-line over feedforward processes were used in adults.
Olivier
Isabelle
I
Laboratoire Sport et Performance Motrice, Université Joseph Fourier, UFRAPS BP 53, 38041, Grenoble, France. isabelle@olivier@ujf-grenoble.fr
Rival
Christina
C
Bard
Chantal
C
Fleury
Michelle
M
D000328:Adult; D000367:Age Factors; D001288:Attention; D002648:Child; D030141:Feedback, Psychological; D006801:Humans; D009068:Movement; D011597:Psychomotor Performance