A roadmap for implanting microelectrode arrays to evoke tactile sensations through intracortical microstimulation.
Document Type
Article
Abstract
Intracortical microstimulation (ICMS) is a method for restoring sensation to people with paralysis as part of a bidirectional brain-computer interface to restore upper limb function. Evoking tactile sensations of the hand through ICMS requires precise targeting of implanted electrodes. Here we describe the presurgical imaging procedures used to generate functional maps of the hand area of the somatosensory cortex and subsequent planning that guided the implantation of intracortical microelectrode arrays. In five participants with cervical spinal cord injury, across two study locations, this procedure successfully enabled ICMS-evoked sensations localized to at least the first four digits of the hand. The imaging and planning procedures developed through this clinical trial provide a roadmap for other brain-computer interface studies to ensure successful placement of stimulation electrodes.
Publication Date
4-28-2024
Publication Title
medRxiv
PubMed ID
38712177
Digital Object Identifier (DOI)
10.1101/2024.04.26.24306239
Recommended Citation
Downey, John E; Schone, Hunter R; Foldes, Stephen T.; Greenspon, Charles; Liu, Fang; Verbaarschot, Ceci; Biro, Daniel; Satzer, David; Moon, Chan Hong; Coffman, Brian A; Youssofzadeh, Vahab; Fields, Daryl; Hobbs, Taylor G; Okorokova, Elizaveta; Tyler-Kabara, Elizabeth C; Warnke, Peter C; Gonzalez-Martinez, Jorge; Hatsopoulos, Nicholas G; Bensmaia, Sliman J; Boninger, Michael L; Gaunt, Robert A; and Collinger, Jennifer L, "A roadmap for implanting microelectrode arrays to evoke tactile sensations through intracortical microstimulation." (2024). Translational Neuroscience. 2380.
https://scholar.barrowneuro.org/neurobiology/2380