An Exploration of Responses to Drug Conditioned Stimuli during Treatment for Substance Dependence
Figure 2
CRT performance in volunteers tested at Stonehenge Therapeutic Community. Mean and sem total number of responses made on computer keys by groups created on the basis of drug of choice ((a) = crack/cocaine, ; (b) = heroin, ; and (c) = alcohol, ). A progressive ratio schedule of reinforcement controlled the relationship between responses on the keys and a 1 sec activation of pictures. Four different keys generated images of cocaine/crack, heroin, marijuana, or alcohol look-alike substances use, and paraphernalia. Two additional keys generated control images of buildings and random colors. The * indicates a significant difference, within group, between responding a specific key and all other keys. In (a) responses to the crack/cocaine and heroin keys were not significantly different from each other.
