Detection of shift in binaural images: A rating method approach

Two practiced listeners were run in a lateralization task in which a rating method was employed. The detection of right and left shifts from the center position was determined. The effect of frequency of the signal was also assessed in the lateralization task. In addition, nine naive listeners were run in a similar situation in order to determine the feasibility of the use of the rating method approach with untrained Ss. First-half, second-half comparisons were determined to check reliability of the technique and also to evaluate the effect of number of trials. The experimental results indicate the procedure is a promising one for the study of directional shifts in binaural stimuli with practiced listeners.