Mood Matters: MHERA by Karin Pienaar

Author:Karin Pienaar [Pienaar, Karin]
Language: eng
Format: epub
ISBN: 9781617813320
Publisher: Dogwise Publishing
Published: 2022-11-22T09:52:05+00:00

To determine what was going on, Berridge and colleagues conducted experiments which manipulated the level of dopamine in the brains of mice to see how this affected the impact of different rewards (Berridge, Robinson, and Aldridge, 2009). They discovered that changing dopamine levels in these so-called pleasure centres didn’t seem to affect how much mice actually ‘liked’ or ‘enjoyed’ a particular sweet treat. However, the amount of dopamine present in the animal’s brain did affect how motivated mice were to obtain the same sweet treat (i.e., how much they ‘wanted’ it). Berridge also discovered much smaller brain areas that specifically seemed to modulate liking but not wanting. In other words, the research suggested that liking and wanting are psychologically and neurobiologically distinct processes in the brain (Berridge, Robinson, and Aldridge, 2009). In the words of Berridge, “getting what you want is different from liking what you got and getting what you want is not always pleasurable.”

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