Sign-tracking predicts increased choice of cocaine over food in rats

@article{Tunstall2015SigntrackingPI,
  title={Sign-tracking predicts increased choice of cocaine over food in rats},
  author={Brendan J Tunstall and David N Kearns},
  journal={Behavioural Brain Research},
  year={2015},
  volume={281},
  pages={222-228}
}
The purpose of this study was to determine whether the tendency to sign-track to a food cue was predictive of rats' choice of cocaine over food. First, rats were trained on a procedure where insertion of a retractable lever was paired with food. A sub-group of rats - sign-trackers - primarily approached and contacted the lever, while another sub-group - goal-trackers - approached the site of food delivery. Rats were then trained on a choice task where they could choose between an infusion of… CONTINUE READING
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