Cerebral Activation during Von Frey Filament Stimulation in Subjects with Endothelin-1-Induced Mechanical Hyperalgesia: A Functional MRI Study

<table>A picture that displays the central pallor zone (adjacent to the injection site), surrounded by a larger area of flare after injection of ET-1. Von Frey filament stimulation sites are indicated by the arrows (&lt;).</table>

BioMed Research International

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Figure 1

Figure 1: Cerebral Activation during Von Frey Filament Stimulation in Subjects with Endothelin-1-Induced Mechanical Hyperalgesia: A Functional MRI Study 

Figure 1 | Cerebral Activation during Von Frey Filament Stimulation in Subjects with Endothelin-1-Induced Mechanical Hyperalgesia: A Functional MRI Study 