Linking Responses to Reward

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Science  11 Mar 2005:
Vol. 307, Issue 5715, pp. 1529
DOI: 10.1126/science.307.5715.1529k

If the size and probability of rewards are variable, efficient neural coding would argue that our responses would be adjusted to center somewhere in the mid-range of possible reward magnitudes and that the response would be modulated to take into account how wide the range of probable rewards is. Tobler et al. (p. 1642) present data that suggest these adjusted responses are in fact encoded within the patterns of activity of dopamine neurons in monkeys as the animals adapted to a schedule of varying rewards.

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