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. 2017 Feb 21;11:77. doi: 10.3389/fnins.2017.00077

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Copyright © 2017 Fragale, Beck and Pang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Relief (Q₀) and motivation (α) were positively correlated at high shock intensities. The relationship between Q₀ and α was assessed in Sprague Dawley (SD) rats (n = 13) at each shock intensity. (A) At 0.5 mA, relief experienced from shock cessation was uncorrelated to motivation. (B,C) However, at 1.0 mA (B) and 2.0 mA (C), rats that experienced greater relief from shock cessation showed greater motivation.