Psychedelic drug flashbacks: Attentional deficits?

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Tested the validity of theories explaining psychedelic flashbacks as manifestations of deficits in attentional processes caused directly or indirectly by a drug. 34 psychedelic drug users experiencing flashbacks were compared with 29 psychedelic drug users not experiencing flashbacks and with 24 non-drug-using controls on a reaction time task with various preparatory intervals. Findings indicate that the flashbackers' attention was comparable to the attention of the nonflashbacking drug users; both drug-using groups did substantially better than the non-drug-using controls. (19 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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