Abstract
Implantable brain-computer interface (BCI) systems, promising for neurological disorder treatment, often en counter high technical barriers. Our fully-implanted CorTec BrainInterchange-BCI2000 ecosystem, aimed for widespread open-source adoption, demonstrates func tionality through a year-post-implant canine study, us ing a brain surface electrocorticography (ECoG) con struct. Broadband power-spectrum increases have been shown to track neural population activity in humans, and we find that they reveal distinct functional representa tion for processing of visual, somatosensory, and audi tory reinforcement stimuli in the canine (captured at 65 150Hz). Canine visual and somatosensory rhythms re semble human alpha and beta rhythms but at different fre quencies: a ∼15Hz visual rhythm in the occipital analog (marginal gyrus) suppresses with light exposure, and a ∼24Hz somatosensory rhythm diminishes upon petting. These findings indicate a unique canine neurophysiology and confirm the BCI2000-BrainInterchange ecosystem’s robustness a year after the implantation. This ecosystem holds promise for developing open-source BCI devices to assist patients with neurological conditions.
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Source: Lampert, F., Mivalt, F., Kim, I., Ince, N. F., Kim, J., Okkabaz, J. L., ... & Miller, K. J. (2024). Functional representation of somatosensory, visual, and reinforcement processing on the canine brain surface. doi, 10, 978-3.
