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    reward stimulus tagged posts

    Both Sides now: Brain Reward Molecule helps Learning to Avoid Unpleasant Experience, too

    March 1, 2016, Categories  Biology/Biotechnology, Health/Medical

    Dopamine innervation into the hippocampus. Green denotes general catecholamine -- a general name for dopamine -- innervation of the CA1 region of the hippocampus. Yellows denotes dopamine nerve endings in the same region. Scale bar is 50 microns. Credit: John Dani, Ph.D., Perelman School of Medicine, University of Pennsylvania

    Dopamine innervation into the hippocampus. Green denotes general catecholamine — a general name for dopamine — innervation of the CA1 region of the hippocampus. Yellows denotes dopamine nerve endings in the same region. Scale bar is 50 microns. Credit: John Dani, Ph.D., Perelman School of Medicine, University of Pennsylvania

    Dopamine regulates how mice learn to avoid a disagreeable encounter, according to new research from the Perelman School of Medicine at the University of Pennsylvania. “We know that dopamine reinforces ‘rewarding’ behaviors, but to our surprise, we have now shown that situations that animals learn to avoid are also regulated by dopamine,” said John Dani, PhD, chair of the department of Neuroscience.

    Special neurons in the brain send out a burst of dopamine in both negat...

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