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. 2012 May 4;7(5):e36781. doi: 10.1371/journal.pone.0036781

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Broos et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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In rats (n = 22), there was no correlation between impulsive action, based on premature responses in the 5-CSRTT, and impulsive choice, based on (A) the indifference point (r = −.22) or (B) the log k-value (r = .09) in the DRT. Within the 5-CSRTT (C) there was a correlation (r = .77) between impulsive action with a standard inter trial interval (ITI 5 s) and lengthened inter trial interval (ITI 7 s).