Neural Substrates of External and Internal Visual Sensations Induced by Human Intracranial Electrical Stimulation.

ABSTRACT: Offline perceptions are self-generated sensations that do not involve physical stimulus. These perceptions can be induced by external hallucinated objects or internal imagined objects. However, how the brain dissociates these visual sensations remains unclear. We aimed to map the brain areas involved in internal and external visual sensations induced by intracranial electrical stimulation and further investigate their neural differences. In this study, we collected subjective reports of internal and external visual sensations elicited by electrical stimulation in 40 drug-refractory epilepsy during presurgical evaluation. The response rate was calculated and compared to quantify the dissociated distribution of visual responses. We found that internal and external visual sensations could be

SUBMITTER: Li Y 

PROVIDER: S-EPMC9355733 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature