Kinematic study of reaching-grasping movements in the monkey
Fogassi, L.; Gallese, V.; Gentilucci, M.; Chieffi, S.; Rizzolatti, G.
Bollettino della Societa Italiana di Biologia Sperimentale 67(7): 715-721
1991
ISSN/ISBN: 0037-8771 PMID: 1818597 Document Number: 374923
Kinematics of reaching-grasping movement towards stimuli of three different sizes located at two different distances were studied in one monkey (Macaca nemestrina). Transport and manipulation components were analyzed using the ELITE system. Transport time, peak velocity and deceleration phase of velocity were influenced by stimulus size, whilst acceleration phase remained unmodified. Peak velocity clearly increased with distance, while transport time remained constant (isochrony ). The main parameters of manipulation component were all influenced by stimulus size but they did not vary with distance. A comparison with kinematic data obtained from human subjects was made.