Fig. 7.

SR (black lines) and square root of RR coherence (grey lines) for stimuli of 10 and 50 Hz bandwidths for three different units (a–c). Afferents were stimulated with 10 identical 30 s segments of Gaussian noise band limited to 10 (left column) or 50 (right column) Hz. Total stimulus power was held constant. Stimulus intensities (Gaussian SD) were 5.28 µm in a1, 5.08 µm in a2, 2.79 µm in b1, 2.08 µm in b2, 0.9 µm in c1, and 0.85 µm in c2. Values of performance index (PI) and cv* are indicated. Units a and b were BM units; unit c was a BT unit.