Itch processing in the brain

Itch is a sensation defined as the urge to scratch. The central mechanisms of itch are being increasingly studied. These studies are usually based on experimental itch induction methods, which can be classified into the following categories: histamine‐induced, induction by other non‐histamine chemicals (e.g. cowhage), physically induced (e.g. electrical) and mentally induced (e.g. audio‐visual). Because pain has been more extensively studied,...