Update on the multimodal pathophysiological dataset of gradual cerebral ischemia in a cohort of juvenile pigs: auditory, sensory and high-frequency sensory evoked potentials

Building upon the previously shared data set, here we expand from a spontaneous to an evoked responses data set containing brain electrical activities in the form of electrocorticogram (ECOG) and electrothalamogram (EThG). This evoked responses data set includes auditory (AEP) and sensory (SEP) stimulation paradigms. This permits derivation of electroencephalogram (EEG) biomarkers of corticothalamic communication under normal, sedation, and hypoxic/ischemic conditions with ensuing recovery. The data set is presented in full band sampled at 2000 Hz. A unique feature is the additional measurement of the high-frequency oscillations in response to sensory stimulation (HFO SEPs). We provide technical validation of the evoked responses for the composite states of sedation, ischemia and recovery, as before. This extended data set now permits mutual inferences between spontaneous and evoked activities across the recorded modalities. Future studies on the dataset may contribute to the development of new brain monitoring technologies, which will facilitate the prevention of neurological injuries.