These datasets contain electrocorticography recordings from the brains of pigs and rats, utilizing a 1024-channel intracranial electroencephalography (iEEG) microdisplay. These recordings were obtained from animals that participated in the study documented in the paper titled 'An electroencephalogram microdisplay to visualize neuronal activity on the brain surface'. The data includes noise that can be filtered out. For detailed instructions on this process, please consult the accompanying journal article.

This dataset contains recordings from PtNRGrids, which are devices designed to record electrocorticography (ECoG) activities from the brain surface at high-spatial resolution. PtNRGrids used here were a square-shaped array with 1024 channels and a 150-µm pitch, which was implanted to record neural activity from the entire right primary somatosensory barrel cortex. The sensory response on the brain was evoked by delivering air puffs through a microcapillary tube to individually stimulate individual whiskers on the contralateral side. This dataset demonstrates the high-spatial resolution recording capability of PtNRGrids isolate functional cortical columns in sub-mm resolution from the surface of the brain.[Publication corresponding to this dataset] Tchoe, Youngbin, et al. "Human brain mapping with multithousand-channel PtNRGrids resolves spatiotemporal dynamics." Science translational medicine 14.628 (2022): eabj1441.[Electrode mapping information & Basic analysis codes] Github: https://ytchoe.github.io/

This dataset contains recordings from PtNRGrids, which are devices designed to record electrocorticography (ECoG) activities from the brain surface at high-spatial resolution. PtNRGrids used here were a square-shaped array with 1024 channels and a 150-µm pitch, which was implanted to record neural activity from the entire right primary somatosensory barrel cortex. The sensory response on the brain was evoked by delivering air puffs through a microcapillary tube to individually stimulate individual whiskers on the contralateral side. This dataset demonstrates the high-spatial resolution recording capability of PtNRGrids isolate functional cortical columns in sub-mm resolution from the surface of the brain.[Publication corresponding to this dataset] Tchoe, Youngbin, et al. "Human brain mapping with multithousand-channel PtNRGrids resolves spatiotemporal dynamics." Science translational medicine 14.628 (2022): eabj1441.[Electrode mapping information & Basic analysis codes] Github: https://ytchoe.github.io/

The Utah array powers cutting-edge projects for restoration of neurological function, such as BrainGate, but the underlying electrode technology has itself advanced little in the last three decades. Here, advanced dual-side lithographic microfabrication processes is exploited to demonstrate a 1024-channel penetrating silicon microneedle array (SiMNA) that is scalable in its recording capabilities and cortical coverage and is suitable for clinical translation. The SiMNA is the first penetrating microneedle array with a flexible backing that affords compliancy to brain movements. In addition, the SiMNA is optically transparent permitting simultaneous optical and electrophysiological interrogation of neuronal activity. The SiMNA is used to demonstrate reliable recordings of spontaneous and evoked field potentials and of single unit activity in chronically implanted mice for up to 196 days in response to optogenetic and to whisker air-puff stimuli. Significantly, the 1024-channel SiMNA establishes detailed spatiotemporal mapping of broadband brain activity in rats. This novel scalable and biocompatible SiMNA with its multimodal capability and sensitivity to broadband brain activity will accelerate the progress in fundamental neurophysiological investigations and establishes a new milestone for penetrating and large area coverage microelectrode arrays for brain–machine interfaces.