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In order to determine which conditioning stimuli activate the hippocampus and the amygdala, subjects received an aversive (shock) US in a PET study. In one condition, a discrete cue (visual stimulus) was presented before the US. In a second condition, the subjects were shocked randomly, without presentation of a discrete cue. How did the neurons in the hippocampus and amygdala respond? (2 answers)
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Which of the following drugs increases wakefulness by blocking adenosine receptors?
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Rodents were trained in separate sessions that CS1 predicts a positive US, leading to conditioned response 1 (CR1) and CS2 predicts an aversive US, leading to conditioned response 2 (CR2). It is impossible to perform both responses at the same time, so the animal can respond to stimuli by showing CR1, CR2 or no response. How did they react when presented simultaneously with CS1 and CS2?
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Luria’s research, tracking eye movements in patients with frontal lobe damage revealed that they had this deficit:
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