Context blocking in rat autoshaping : Sign-tracking versus goal-tracking

  title={Context blocking in rat autoshaping : Sign-tracking versus goal-tracking},
  author={Daniel S. J. Costa and Robert A. Boakes},
Prior experience of unsignaled food can interfere with subsequent acquisition by birds of autoshaped key-pecking at a signal light. This has been understood to indicate that unsignaled food results in context conditioning, which blocks subsequent learning about the keylight–food relationship. In the present experiment with rats lever insertion as the conditioned stimulus (CS) preceded sucrose delivery as the unconditioned stimulus (US). Half the rats initially received unsignaled USs in the… CONTINUE READING
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