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Supporting Information Canolty et al. 10.1073/pnas.1008306107
 

Summary: Supporting Information
Canolty et al. 10.1073/pnas.1008306107
SI Methods
1. Surgery, Electrophysiology, and Experimental Setup for the Brain­
Machine Interface Task. See ref. 1 for full experimental details. Two
adult male rhesus monkeys (Macaca mulatta) were chronically
implanted with multiple microelectrode arrays. Each array con-
sisted of 64 Teflon-coated tungsten microelectrodes (35 m in di-
ameter, 500-m interelectrode spacing) arranged in an 8 × 8 array
(CD Neural Engineering). Subject P was implanted bilaterally in
the arm area of primary motor cortex (M1) and in the arm area of
left hemisphere dorsal premotor cortex (PMd), for a total of 192
electrodes across three implants. One hundred thirty-eight identi-
fied single units from this subject were examined. Subject R had
bilateral implants in the arm area of M1 and PMd, for a total of
256 electrodes across four implants. Eighty-four identified single
units from this subject were examined. Localization was performed
using stereotactic coordinates (2). Implants targeted layer-5 pyra-
midal tract neurons and were positioned at a depth of 3 mm
(M1) or 2.5 mm (PMd). Intraoperative monitoring of spike activity

  

Source: Andrzejak, Ralph Gregor - Departament de Tecnologia, Universitat Pompeu Fabra

 

Collections: Computer Technologies and Information Sciences