Figure 8.
A Contour plot of tone delay functions (TDFs) as a function of fcar constructed from binaural beat data for the neuron also illustrated in Figure 7A and B. Spike rate has been normalized so that white indicates a value of 1 and black a value of 0. Dashed white horizontal lines indicate the approximate ethological ITD range of the chinchilla. White hyperbolic solid and dashed lines indicate the π-limit and 1/4 π-limit, respectively. B, Difcor of responses to binaural beat data. The white patch indicates the approximate ethological ITD range. For comparison, the difcor obtained from noise delay functions (NDFs) of the same neuron is shown as a thin line. For this neuron, there is good agreement between the BD obtained from the composite tonal (TDF difcor) and noise (NDF difcor) data.