1. (psychology) perception of or reaction to a stimulus that occurs without awareness or consciousness
   "Subliminal perception or cognition is a subset of unconscious cognition where the forms of unconscious cognition also include attending to one signal in a noisy environment while unconsciously keeping track of other signals (e.g one voice out of many in a crowded room) and tasks done automatically (e.g. driving a car)";
   - subception

Type of: aesthesis, esthesis [US], sensation, sense datum, sense experience, sense impression

Encyclopedia: Subliminal perception