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. Author manuscript; available in PMC: 2014 May 24.
Published in final edited form as: Neurosci Lett. 2013 Apr 2;543:37–41. doi: 10.1016/j.neulet.2013.02.060

Fig. 1.

Fig. 1

Behavioral assessment of thermal hyperalgesia and mechanical allodynia. Rats rested comfortably in a restrainer with a covering over the head and face that exposed the chin. The covering was sufficiently loose to allow limited upward and lateral head movements. The restrainer was angled so that the chin rested on a warmed glass surface and could be stimulated with radiant heat to elicit head withdrawals. This also allowed mechanical von Frey stimulation to record head withdrawal thresholds.