FIG. 7.

GABAergic transmission does not shape frequency tuning in NCM. Tuning functions based on normalized phasic (0–50 ms) responses to tone stimuli (250–5,000 Hz) before (blue) and after (red) BIC application are shown for 4 recording sites (2 left hemisphere—control; 2 right hemisphere—BIC). Bottom traces in each graph show background levels of activity. Different sites show different best frequencies and tuning widths, but BIC does not cause any changes in the overall shape of the tuning functions.