Figure 6
Raster plots and neurometric functions of four exemplary cortical neurons presented with phase-randomized aggression calls. (A–D) Each block within the spike raster plot shows neuronal responses to one (increasingly phase-randomized) version of the stimulus. For the topmost block, the original call was presented, and for the bottommost block, the respective degraded version with the longest phase-randomization window was presented, respectively. Note that the number of phase-randomization steps varied with call length. Each stimulus version was presented 20 times in total. The unit in A and C shows a distinct temporal response pattern, the unit in (B,D) shows a more tonic response pattern. (E,F) Neurometric functions as obtained from ROC analysis show significant discrimination performance by the two units from A-B and yield discrimination thresholds of 12.9 ms and 14.2 ms, respectively. (G,H) Neurometric functions show no significant discrimination performance by the two units from (C,D).
