A stimulus-control account of dysregulated drug intake

Drug discrimination: stimulus control during repeated testing in extinction.

Rats were trained, under a two-lever drug-discrimination procedure, to respond differentially depending upon whether lorazepam (1.0 mg/kg) or no injection had been administered before the session. Responses on the appropriate lever produced a food pellet under a modified fixed-ratio (FR) 10 schedule, in which the 10 responses had to be emitted consecutively. In reinforcement tests, completing a...

Drug-Induced Suppression of Conditioned Stimulus Intake: Reward, Aversion, and Addiction

One of the surprising findings of conditioned taste aversion (CTA) research is the ability of drugs of abuse to support CTA learning. First reported in the early 1970s, this ability to induce taste aversions has been reported for every drug of abuse that has been investigated. Several attempts have been made to resolve this apparent “paradox”; however, none has proved successful. The present ch...

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

A Compensatory Control Account of Meritocracy

Why are people motivated to support social systems that claim to distribute resources based on hard work and effort, even when those systems seem unfair? Recent research on compensatory control shows that lowered perceptions of personal control motivate a greater endorsement of external systems (e.g., God, government) that compensate for a lack of personal control. The present studies demonstra...

Investigation of Submerged Vanes Array for Sediment Control at Intake Using a Physical Model