Figure 1.

The perimetry apparatus. Arrays of 3 red LEDs and 2 speakers were embedded in the perimetry wall along the horizontal meridian at 15° intervals. Only the middle LED at a given location was used here. During behavioral assessments and training the animal fixated on the central visual stimulus (i.e., the illuminated LED at 0°), then oriented toward, and approached, the visual stimulus appearing at a random location (single‐stimulus) or chose between two visual stimuli appearing simultaneously at −45° and 45° of fixation (choice‐stimulus) with or without a congruent auditory stimulus. The animal was rewarded for approaching any of the LED targets and for remaining at the start position during auditory‐only and catch trials adapted from (Rowland et al., 2007). Inset: Tracing of lesion produced in animal F3. Size and shape of lesion were uniform across all animals