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Background. Previous studies of the effects of attention on prepulse inhibition (PPI) have not accounted for the effects of attention on control (i.e. pulse alone) trials. In addition, there have been no studies of the effects of alcohol on the attentional modulation of PPI, even though alcohol putatively influences attentional mechanisms. The objective of the present study was to examine the effects...
Abstract. Rationale: Several previous investigations with animals and humans have suggested that nicotine enhances prepulse inhibition of the startle reflex (PPI). However, the administration of nicotine activates mesolimbic dopamine, and activation of mesolimbic dopamine is known to attenuate prepulse inhibition of the startle reflex (PPI), which might suggest that nicotine would decrease PPI. Objective:...
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