Chronic psychosocial stress makes rats more 'pessimistic' in the ambiguous-cue interpretation paradigm.

@article{Papciak2013ChronicPS,
  title={Chronic psychosocial stress makes rats more 'pessimistic' in the ambiguous-cue interpretation paradigm.},
  author={Justyna Papciak and Piotr Popik and Eberhard Fuchs and Rafal Rygula},
  journal={Behavioural brain research},
  year={2013},
  volume={256},
  pages={305-10}
}
Human decisions are often biased by emotions. Stressed and depressed individuals tend to make negative, pessimistic judgements while those in positive affective states are often more optimistic. Chronic psychosocial stress has previously been shown to induce a spectrum of behavioural and physiological changes in rats that are considered the correlates of depressive symptoms in humans. In this study, we investigate whether chronic social defeat makes animals more 'pessimistic'. To measure the… CONTINUE READING

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