Recreational cocaine use is associated with attenuated latent inhibition

Article


Soar, K., Dawkins, Lynne, Page, Frederick and Wooldridge, Joseph 2015. Recreational cocaine use is associated with attenuated latent inhibition. Addictive Behaviors. 50, pp. 34-39.
AuthorsSoar, K., Dawkins, Lynne, Page, Frederick and Wooldridge, Joseph
Abstract

Introduction: Evidence has linked chronic cocaine use with various cognitive deficits; however few studies have investigated the effects of recreational (non-dependent) use. The present study aimed to assess whether recreational users show deficits in latent inhibition (LI: a measure of delayed learning of an association between 2 stimuli, one of which has been previously exposed (PE) without consequence and thus deemed irrelevant).
Methods: Using a quasi-experimental between groups design, recreational cocaine users (n = 21), poly-drug users (n = 17) and drug-naive controls (n = 18) were compared on a LI task. Questionnaires assessing psychological health and drug use were also completed.
Results: There was a statistically significant interaction between condition (PE vs non PE) and group (cocaine, polydrug and control); cocaine users scored lower in the PE condition compared to polydrug users and controls, indicating quicker learning.
Conclusions: Recreational cocaine users show attenuated LI reflecting reduced ability to filter out irrelevant stimuli enabling faster learning of a PE irrelevant and novel stimuli association. This does not appear to be a result of schizotypy and/or other drug use. Thus even at recreational levels, cocaine use may be sufficient to affect inhibitory attentional processes.

JournalAddictive Behaviors
Journal citation50, pp. 34-39
ISSN03064603
Year2015
PublisherElsevier
Accepted author manuscript
License
CC BY-NC-ND
Digital Object Identifier (DOI)doi:10.1016/j.addbeh.2015.06.010
Publication dates
Print11 Jun 2015
Publication process dates
Deposited23 Jun 2015
Accepted11 Jun 2015
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https://repository.uel.ac.uk/item/855w4

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