Combination of hand and gaze signals during reaching: Activity in parietal area 7m of the monkey

S. Ferraina, P. B. Johnson, M. R. Garasto, A. Battaglia-Mayer, L. Ercolani, L. Bianchi, F. Lacquaniti, R. Caminiti

Research output: Contribution to journalArticle

Abstract

The role of area 7m has been studied by recording the activity of single neurons of monkeys trained to fixate and reach toward peripheral targets. The target was randomly selected from eight possible locations on a virtual circle, of radius 30°visual angle from a central target. Three tasks were employed to dissociate hand- from eye-related contributions. In the first task, animals looked and reached to the peripheral target. In a second task, the animal reached to the peripheral larger while maintaining fixation on the central target. In the third task, the monkey maintained fixation on peripheral targets that were spatially coincident with those of the reaching tasks. The results show that cell activity in area 7m relates, for some cells to eye position, for others to hand position and movement, and for the majority of cells to a combination of visuomanual and oculomotor information. This area, therefore, seems to perform an early combination of information in the processing leading from target localization to movement generation.

Original languageEnglish
Pages (from-to)1034-1038
Number of pages5
JournalJournal of Neurophysiology
Volume77
Issue number2
Publication statusPublished - 1997

ASJC Scopus subject areas

  • Physiology
  • Neuroscience(all)

Fingerprint Dive into the research topics of 'Combination of hand and gaze signals during reaching: Activity in parietal area 7m of the monkey'. Together they form a unique fingerprint.

  • Cite this

    Ferraina, S., Johnson, P. B., Garasto, M. R., Battaglia-Mayer, A., Ercolani, L., Bianchi, L., Lacquaniti, F., & Caminiti, R. (1997). Combination of hand and gaze signals during reaching: Activity in parietal area 7m of the monkey. Journal of Neurophysiology, 77(2), 1034-1038.