Figure 3

Behavioral response to menthol and vehicle treatment. Stimulus contacts (A), reward/stimulus success ratio (B), and stimulus duration/contact (C) at 24, 10, and -4°C in the presence of menthol (solid lines) or vehicle (dotted lines), expressed as a percent change from untreated baseline temperatures. Data points indicate average change from baseline, + indicates significant increase, and * indicates a significant decrease. The change in reward/stimulus success ratio over time (D) is also given for menthol (blue), vehicle (orange), baseline at 10°C (green), and baseline at 37°C (pink).