title: The subjective perception of two aspects of time: duration and timelessness.
mesh_terms: D000883:Anthropology; D004532:Ego; D006801:Humans; D008542:Melanesia; D010465:Perception; D010507:Periodicity; D010684:Philosophy; D011573:Psychoanalytic Interpretation; D012649:Self Concept; D013995:Time