title: A source of error in attempts to distinguish coactivation from separate activation in the perception of redundant targets.
authors.forename: C W
authors.initials: CW
authors.lastname: Eriksen
mesh_terms: D001143:Arousal; D001288:Attention; D001307:Auditory Perception; D006801:Humans; D011601:Psychophysics; D011930:Reaction Time; D014796:Visual Perception