Prediction of arm trajectory from a small number of neuron activities in the primary motor cortex

Yasuharu Koike, Hideaki Hirose, Yoshio Sakurai, Toshio Iijima

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

Monkey arm movement was reconstructed from neuron activities recorded in the primary motor cortex (Ml). We recorded single neuron activities from a monkey's Ml, while the animal performed an arm reaching task. We also recorded electromyographic (EMG) activity and movement trajectories during the task. First, we reconstructed the EMG signals from the neuron activities. The EMG signals were reliably reconstructed with a linear summation of the neuron activities. Next, we reconstructed joint angles from the reconstructed EMG signals with an artificial neural network model. The reconstructed trajectories of the hand position and elbow position showed good correlation with the actual arm movement. This model appropriately reflected the anatomical characteristics.

Original languageEnglish
Pages (from-to)146-153
Number of pages8
JournalNeuroscience Research
Volume55
Issue number2
DOIs
Publication statusPublished - 2006 Jun
Externally publishedYes

Keywords

  • BMI
  • EMG
  • Ml
  • Neuron activity
  • Reaching movement

ASJC Scopus subject areas

  • Neuroscience(all)

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