AI Article Synopsis

  • Previous research indicates that certain brain areas may activate dopamine pathways when electrically stimulated, providing a sense of reward.
  • This study found that dopamine also influences the enjoyment or "hedonic quality" of natural rewards, like sugar, in rats.
  • Using specific drugs, haloperidol decreased and apomorphine increased the perceived reward of a saccharin solution, without affecting overall performance in the rats.

Article Abstract

Previous studies suggest a dopaminergic basis for the apparent reward properties of self-stimulation of certain brain areas with electrical current. The data of this present study indicate that there may be a dopaminergic role in the perceived hedonic quality of natural reinforcers. Using a classical behavioral contrast paradigm, we observed in rats that the perceived reward of a saccharin solution was decreased by haloperidol and increased by apomorphine, in doses that did not cause non-specific performance effects.

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http://dx.doi.org/10.1016/0304-3940(81)90386-4DOI Listing

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