Fig. 2.

The relationship between muscimol concentration and normalized OMR. Eleven concentrations of muscimol from 0.01 µM to 1 mM were used (n=5 for each concentration). At certain concentrations, the same goldfish showed both negative and positive OMR. To account for this, each fish treated with concentrations ranging from 0.1~30 µM was measured twice as much. Therefore, the total number of fish used in the experiment was 55, but 30 of were tested and measured twice as much as the remaining 25. As the muscimol concentration increased, there were 3 distinctive OMR results: reduction in anterograde rotation, coexistence of retrograde rotation and reduced anterograde rotation, and retrograde rotation only. The diagram, which shows the anterograde and retrograde rotation, is shown on the graph for reference and clarity.