Brain Chemical Shown To Induce Both Desire And Dread

The chemical dopamine induces both desire and dread, according to new animal research in the Journal of Neuroscience. Although dopamine is well known to motivate animals and people to seek positive rewards, the study indicates that it also can promote negative feelings like fear. The finding may help explain why dopamine dysfunction is implicated not only in drug addiction, which involves excessive desire, but in schizophrenia and some phobias, which involve excessive fear.

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