Consciousness may be inferred in others through observable behaviours such as facial expressions and vocalizations. However, such overt reporting has limitations, leading to research on physiological signals that disclose consciousness without relying on overt behaviour. In this Review, Kronemer, Bandettini and Gonzalez-Castillo explore such covert measures of consciousness in humans.
- Sharif I. Kronemer
- Peter A. Bandettini
- Javier Gonzalez-Castillo