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Figure 2 | Molecular Pain

Figure 2

From: Characterization of cold sensitivity and thermal preference using an operant orofacial assay

Figure 2

Behavioral response to thermal preference. Rats were first placed in the thermal preference testing box (A) with left and right thermodes set at 37°C to ensure that there was not a side preference (B). In two additional testing sessions, rats chose between -4 and 48°C (C) and their reward/stimulus (D) and stimulus duration/contact ratios were found to be no different for -4°C and 48°C, but significantly lower for -4°C and 48°C relative to 37°C (ratios calculated from temperature choice trials). * indicates significant decrease, P < 0.05.

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