Figure 3
From: A novel concept for dynamic adjustment of auditory space
Adapter ITD selectively modulates ITD perception. Median difference scores over 18 subjects (solid line) and interquartile ranges (shaded area) for the three different adapter ITDs as a function of the test ITD are shown. Significant perceptual shifts are indicated by symbols (see legend in panel (b), p-values derived from two-sided Wilcoxon signed rank test). (a) When a central adapter is presented, the perception of target tones with test ITDs to the left and right of the adapter are affected in different ways: the perception of target tones presented left of the adapter are shifted to the left (negative difference scores), whereas target tones presented right of the adapter are shifted to the right (positive difference scores). (b) The presentation of a semi-lateral adapter (ITD of −181.4 µs) leads to a shift to the right (positive difference scores) for target tones with test ITDs ranging from −272.1 to +272.1 µs (except for −90.7 µs). (c) The presentation of a preceding adapter with an ITD of +634.9 µs shifts the perception of target tones with test ITDs ranging from −181.4 µs to +634.9 µs to the left (negative difference scores).
