Spatial effects in speech perception in the absence of spatial competition.
Two synthetic speech syllables, differing in pitch, were presented over one loudspeaker situated at one of the following azimuths: 0 degrees (in from of the subject); 45 degrees, 90 degrees, and 135 degrees to the left or to the right; and 180 degrees. The subject's task was to report the high-pitch syllable. The pattern of performance can be described in terms of two component effects: a decreasing anterior-posterior gradient, and right-side advantage. Competition between messages from one direction only appears to be as effective in determining auditory spatial effects as competition between spatially distinct sources.
D000293:Adolescent; D000328:Adult; D001307:Auditory Perception; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D009949:Orientation; D010897:Pitch Discrimination; D013028:Space Perception; D013060:Speech