Fig. 2.

Sound localization performance in the approach-to-target task for 2 representative cases (F0140, left column, which received extensive bilateral cortical lesions, and F0317, right column, which received smaller bilateral lesions that were restricted to the primary auditory cortex). Data were obtained at 2 different sound durations: 1,000 (A) and 40 ms (B). The size of the dots indicates, for each of the 12 target locations, the proportion of responses to different loudspeaker/reward-spout locations. For each plot, the value of the overall mutual information (MI) between response and target location is shown at the bottom right. A: localization performance at 1,000 ms was slightly impaired after extensive cortical lesions, but remained unaltered after restricted lesions. B: this difference was also apparent at 40 ms, where a modest disruption was seen after restricted cortical lesions and a much more substantial impairment was found after extensive cortical lesions.