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This study examines the development of sign-tracking and goal-tracking conditioned responses in high-responder (bHR) and low-responder (bLR) rats. The researchers explore the behavioral differences between these rat types and their implications. The findings shed light on individual variation in reward-seeking behaviors and potential correlation with personality traits in rodents.
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Development of sign-tracking versus goal-tracking CRs in bHR and bLR rats. SB Flagel et al.Nature000, 1-5 (2010) doi:10.1038/nature09588