Anchor referral: a new technique.
D000161:Acoustic Stimulation; D000328:Adult; D001288:Attention; D001307:Auditory Perception; D001766:Blindness; D003657:Decision Making; D004192:Discrimination, Psychological; D004423:Ear / Q000502:physiology; D007839:Functional Laterality; D006429:Hemiplegia; D006801:Humans; D007600:Judgment; D008297:Male; D008875:Middle Aged; D011601:Psychophysics; D013060:Speech