Dynamics of the learning of a morphokinetic movement sequence in humans.
We studied the dynamics of the process through which subjects build a visuomotor representation in memory as they learn a morphokinetic movement sequence presented on videotape. It was hypothesized that recall accuracy is closely tied to the dynamics of the movement-representation process. When analyzed in the form of time series, recall performance should exhibit a deterministic inter-trial relationship reflecting the memorization activity. Twelve subjects divided into two groups recalled a sequence of arm movements 60 times. The model was presented to Group 1 (G1) on all 60 trials, whereas Group 2 only saw the model on the first 30 trials. During these first 30 trials, the analysis of accuracy time series pointed out the short-term historicity of the deterministic inter-trials relationship. For the last 30 trials, this deterministic relationship disappeared in both experimental conditions, except for two subjects of G1, and was replaced by a white-noise process suggesting that a stable representation of the sequence has been built in long-term memory.
Delcor
Lorène
L
Laboratoire Sport, Performance, Santé, Université Montpellier I, 700 avenue du Pic Saint Loup, 34090 Montpellier, France.
Cadopi
Marielle
M
Delignières
Didier
D
Mesure
Serge
S
D000704:Analysis of Variance; D006801:Humans; D007699:Kinesthesis / Q000502:physiology; D007858:Learning / Q000502:physiology*; D008433:Mathematics; D008960:Models, Psychological; D009068:Movement / Q000502:physiology*; D011214:Practice, Psychological; D011897:Random Allocation; D013997:Time Factors