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The delay-discounting task

The delay-discounting task we use is adapted from that first designed by Evenden and Ryan (1996). Each session typically lasts 100 minutes and consists of five blocks of 12 trials, each lasting 100 seconds. Each block begins with a pair of forced choice trials which consists of one presentation of the left lever and one […]

Five hole box

The five-hole box is an operant chamber which is fitted with an array of five response apertures into which the rat can make a “nosepoke” response. Each hole can also be illuminated by a stimulus light located inside it which often signals to the rat when a nosepoke response is required. Such nosepokes are detected […]