Cognitive processing of drug-related stimuli: the role of memory and attention
Aviv Weinstein1*
W. Miles Cox2
1 Department of Medical Biophysics and Nuclear Medicine, Hadassah
University Hospital, Ein Kerem, Jerusalem, Israel
2 School of Psychology, University of Wales, Bangor, Wales, UK
* To whom correspondence should be addressed.
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Abstract |
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Recent studies have investigated the role of attentional biases and memory in
alcohol and other drugs of dependence and the relationship between the motivation to use
alcohol or other drugs and vigilance for relevant stimuli in alcohol and drug
dependence. Based on this research, we describe relationships among motivation, memory,
and attentional biases in order to enable better understanding of their multiple and
interacting roles in the maintenance and development of alcohol and other drug
dependence. We argue that memory and attentional processes are critical in the
development and maintenance of addiction processes. Furthermore, we assume that
attentional bias is not simply a by-product of an addiction disorder but plays a vital
role in its development and maintenance, and it serves to enhance actual drug use.
Finally, we predict that the motivation to use alcohol or other drugs will increase
vigilance for substance-related stimuli, which in turn can lead to actual use. Future
research is needed to fill gaps in our knowledge and lead to a more defined and
articulated cognitive-behavioural model of drug dependence.
Key Words:
attention, memory, drug-dependence, craving