Visuomotor mismatch EEG responses over occipital cortex of freely moving human subjects.

Humans exhibit robust visuomotor mismatch EEG responses over occipital cortex, with greater signal power than visual and oddball responses, indicating strong prediction errors.

• Why it matters: Understanding these responses bridges the gap between mouse models and human brain mechanisms, crucial for translating circuit insights into clinical applications and improving predictive coding paradigms.
• What they did: Researchers combined wireless EEG with virtual reality in freely moving humans, inducing visuomotor mismatches and measuring the resulting cortical responses, which showed reversed polarity and high power.
• The result: This work demonstrates that humans produce strong visuomotor mismatch signals, enabling more efficient, ecologically valid studies of prediction errors and informing future clinical and neuroscientific research.