Movement coding and memory in the developmentally young.
| Number | 264 |
|---|---|
| Year | 1979 |
| Drawer | 5 |
| Entry Date | 06/03/1999 |
| Authors | Kelso, J. A. S., Goodman, D., Hayes, C., & Stamm C. F. |
| Contact | |
| Publication | American Journal of Mental Deficiency, 83, 601-611 |
| url | http://www.haskins.yale.edu/Reprints/HL0264.pdf |
| Abstract | Conducted 3 experiments on the coding and retention of movement-generated information with 2 groups of mildly retarded children varying in MA. The cue to be reproduced was the terminal position of the limb that studies with adults have shown to require central processing activity for maintained performance. In Experiment I, although the older MA group was superior, both groups showed similar decrements in performance over a 15-sec interval. In Experiment II, procedures were adopted in an attempt to overcome performance deficits. The 3 Subjects were allowed to choose (i.e., preselect) their own movements in addition to performing constrained movements. Preselected reproduction was superior to constrained at all 3 retention intervals (0, 7, and 15 sec) but was not statistically different among age groups. Also, performance was maintained for both groups over 7 sec but deteriorated over 15 sec. These results were replicated with 24 Ss in Exp III, which also showed that an interpolated motor task designed to block rehearsal processes interfered with reproduction at the 7- and 15-sec retention-interval conditions. Results indicate that mildly retarded children can maintain motor information over brief time periods and also illustrate the important contribution of the planning component in facilitating the coding of motoric information. |
| Notes |
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