Belinda Po Pyn Lay

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An array of pharmacological and environmental factors influence the development and maintenance of tobacco addiction. The nature of these influences likely changes across the course of an extended smoking history, during which time drug seeking can become involuntary and uncontrolled. The present study used an animal model to examine the factors that drive(More)
A series of experiments used rats to examine renewal and reinstatement of extinguished second-order conditioned fear (freezing) responses. The initial experiment demonstrated that freezing responses to a stimulus (S2) were contingent on its pairings with a second stimulus (S1) and on the prior pairings of S1 and an aversive unconditioned stimulus (US).(More)
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