The activity of 156 neurons was recorded in the premotor cortex (Weinrich and Wise 1982) and in an adjoining rostral region of area 6 (area 6 DR; Barbas and Pandya 1987) while monkeys made visually-guided arm movements of similar direction within different parts of space. The activity of individual neurons varied most for a given preferred direction of movement within each part of space. These neurons (152/156, 97.4\%) were labeled as directional. The spatial orientation of their preferred directions shifted in space to "follow" the rotation of the shoulder joint necessary to bring the arm into the different parts of the work-space. These results suggest that the cortical areas studied represent arm movement direction within a coordinate system rotating with the arm and where signals about the movement direction relate to the motor plan through a simple invariant relationship, that between cell preferred direction and arm orientation in space.

Shift of preferred directions of premotor cortical cells with arm movements performed across the workspace / R., Caminiti; P. B., Johnson; Y., Burnod; C., Galli; Ferraina, Stefano. - In: EXPERIMENTAL BRAIN RESEARCH. - ISSN 0014-4819. - STAMPA. - 83:(1990), pp. 228-232.

Shift of preferred directions of premotor cortical cells with arm movements performed across the workspace

FERRAINA, Stefano
1990

Abstract

The activity of 156 neurons was recorded in the premotor cortex (Weinrich and Wise 1982) and in an adjoining rostral region of area 6 (area 6 DR; Barbas and Pandya 1987) while monkeys made visually-guided arm movements of similar direction within different parts of space. The activity of individual neurons varied most for a given preferred direction of movement within each part of space. These neurons (152/156, 97.4\%) were labeled as directional. The spatial orientation of their preferred directions shifted in space to "follow" the rotation of the shoulder joint necessary to bring the arm into the different parts of the work-space. These results suggest that the cortical areas studied represent arm movement direction within a coordinate system rotating with the arm and where signals about the movement direction relate to the motor plan through a simple invariant relationship, that between cell preferred direction and arm orientation in space.
1990
Animals, Arm, Macaca nemestrina, Motor Activity, Motor Cortex; cytology/physiology, Motor Neurons; physiology, Motor Skills, Movement
01 Pubblicazione su rivista::01a Articolo in rivista
Shift of preferred directions of premotor cortical cells with arm movements performed across the workspace / R., Caminiti; P. B., Johnson; Y., Burnod; C., Galli; Ferraina, Stefano. - In: EXPERIMENTAL BRAIN RESEARCH. - ISSN 0014-4819. - STAMPA. - 83:(1990), pp. 228-232.
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/459341
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 20
  • Scopus 53
  • ???jsp.display-item.citation.isi??? 52
social impact