ECoG Recorded from rhesus macaque monkey’s brain (motor cortex, dorsolateral prefrontal cortex, ventrolateral prefrontal cortex) during ipsilateral, contralateral, and bilateral movements.

The experiments were conducted on an adult healthy male rhesus macaque monkey. The monkey was trained to retrieve food from experimenter at random locations. Three different experimental paradigms were considered in this study: the ipsilateral, contralateral, and bilateral movements. During ipsilateral and contralateral movements, the monkey was trained to retrieve food with his right hand and left hand, respectively, while the other hand was touched with the experimenter to inform him not to use it. The bilateral movement consisted of getting foot by the right or left hand, putting food to the mouth, and returning the hand to the initial position. The ECoG signals were recorded at a sampling rate of 1 kHz using a custom-made 64-channel electrode array implanted in the subdural space of the cortex of the brain of a male Rhesus monkey. The array covers the right hemisphere of the brain surface from the motor to the frontal cortex. The wrist positions were simultaneously recorded with an optical motion capture. The following paper describes results from these experiments: A state-based probabilistic method for decoding hand position during movement from ECoG signals in non-human primate. Behraz Farrokhi & Abbas Erfanian, J Neural Eng. 17 026042 (2020). DOI: 10.1088/1741-2552/ab848b