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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Am Psychol. 2016 Nov;71(8):670–679. doi: 10.1037/amp0000059

Figure 1.

Figure 1

‘Liking’ and ‘wanting’ in brain and in addiction. ‘Wanting’ is mediated by a robust brain system including dopamine projections (left, dark gray), whereas ‘liking’ is mediated by a restricted brain system of small hedonic hotspots (white) (described in Berridge & Kringelbach, 2015). The incentive-sensitization theory of addiction (right) shows how ‘wanting’ may grow over time independently of ‘liking’ as an individual becomes an addict, due to sensitization of brain mesolimbic systems. (The figure was adapted by Shannon Cole and Daniel Castro from Robinson & Berridge, 1993).