Fig. 8

Bar charts showing distributions of the difference in the mean (“dMean FSL (ms)” in (a)) and the difference in the SD FSL (“dSD FSL (ms)” in (b)) between responses elicited by the same location-fixed sound when the location-changeable sound was presented at i90° and when it was omitted from presentation. Comparisons were made in two subgroups of neurons that didn’t and did generate suprathreshold responses to a location-changeable sound presented at i90° (Open vs. filled bars). Left, middle, and right panels are based responses elicited by a location-fixed sound when it was presented as Odd, Eql, and Std. Two sets of data based on responses elicited by TL and TH, respectively, were combined in the figure. A vertical dashed line indicates no difference between responses to a location-fixed sound obtained under two conditions (i,e., location-fixed sound was at i90° and omitted). Numbers of neurons that had negative and positive differences are shown on the left and right sides of the dashed line. “NSub” and “NSup” indicate incidences in two subgroups of neurons that didn’t and did generate a suprathreshold response when stimulated by a location changeable sound at i90°. χ2 test results that compare incidences of positive and negative differences between the two subgroups of neurons: Top left panel: χ2= 0.250, p=0.617; Top middle panel: χ2= 2.788, p=0.095; Top right panel: χ2= 0.004, p=0.950; Bottom left panel: χ2= 0.293, p=0.594; Bottom middle panel: χ2= 0.133, p=0.715; Bottom right panel: χ2= 0.198, p=0.656.