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Dynamic properties of human goal-directed arm movements
| Content Provider | Semantic Scholar |
|---|---|
| Author | Bock, Otmar |
| Copyright Year | 1990 |
| Abstract | In the present study, the velocity of pointing movements towards visual targets was analyzed. In accordance with the literature, tangential velocity was found to exhibit rather smooth, single-peaked profiles. In contrast, however, the profiles of the velocity components in the Cartesian coordinates of space were conspicuously multi-peaked, and suggestive of sums of a smooth curve and an oscillation. Oscillation frequency was 4-6 Hz, and its amplitude 200-600 mm/s; the phase shift between horizontal and vertical oscillation was about 180 degrees. The oscillation remained unaltered when the external load of the arm, the size of the visual target, or the required movement direction were changed. The relationship between the present findings and previously documented rhythmic properties of motor control is discussed, and it is concluded that the oscillations may have been generated by neural circuits with inherent oscillatory properties. |
| Starting Page | 240 |
| Ending Page | 248 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/0166-4328(90)90030-I |
| PubMed reference number | 2244970 |
| Journal | Medline |
| Volume Number | 39 |
| Alternate Webpage(s) | https://api.elsevier.com/content/article/pii/016643289090030I |
| Alternate Webpage(s) | https://www.sciencedirect.com/science/article/pii/016643289090030I?dgcid=api_sd_search-api-endpoint |
| Alternate Webpage(s) | https://doi.org/10.1016/0166-4328%2890%2990030-I |
| Journal | Behavioural Brain Research |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
