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Cognitive consequences of cannabis use: comparison with abuse of stimulants and heroin with regard to attention, memory and executive functions.
Pharmacol Biochem Behav. 2005 Jun; 81(2):319-30.PB

Abstract

This review aims to compare cognitive consequence between cannabis, and stimulants and heroin with regards to attention, memory and executive functions. The available studies using brain imaging techniques and neuropsychological tests show that acutely, all drugs create a disharmony in the neuropsychological network, causing a decrease of activity in areas responsible for short-term memory and attention, with the possible exception of heroin. Cannabis induces loss of internal control and cognitive impairment, especially of attention and memory, for the duration of intoxication. Heavy cannabis use is associated with reduced function of the attentional/executive system, as exhibited by decreased mental flexibility, increased perserveration, and reduced learning, to shift and/or sustain attention. Recent investigations on amphetamine/methamphetamine have documented deficits in learning, delayed recall, processing speed, and working memory. MDMA users exhibit difficulties in coding information into long-term memory, display impaired verbal learning, are more easily distracted, and are less efficient at focusing attention on complex tasks. The degree of executive impairment increases with the severity of use, and the impairments are relatively lasting over time. Chronic cocaine users display impaired attention, learning, memory, reaction time and cognitive flexibility. Heroin addiction may have a negative effect on impulse control, and selective processing.

Authors+Show Affiliations

Drug Addiction Treatment Centre, Lund University Hospital, SE-221 85 Lund, Sweden. thomas.lundqvist@med.lu.se

Pub Type(s)

Comparative Study
Journal Article
Review

Language

eng

PubMed ID

15925403

Citation

Lundqvist, Thomas. "Cognitive Consequences of Cannabis Use: Comparison With Abuse of Stimulants and Heroin With Regard to Attention, Memory and Executive Functions." Pharmacology, Biochemistry, and Behavior, vol. 81, no. 2, 2005, pp. 319-30.
Lundqvist T. Cognitive consequences of cannabis use: comparison with abuse of stimulants and heroin with regard to attention, memory and executive functions. Pharmacol Biochem Behav. 2005;81(2):319-30.
Lundqvist, T. (2005). Cognitive consequences of cannabis use: comparison with abuse of stimulants and heroin with regard to attention, memory and executive functions. Pharmacology, Biochemistry, and Behavior, 81(2), 319-30.
Lundqvist T. Cognitive Consequences of Cannabis Use: Comparison With Abuse of Stimulants and Heroin With Regard to Attention, Memory and Executive Functions. Pharmacol Biochem Behav. 2005;81(2):319-30. PubMed PMID: 15925403.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cognitive consequences of cannabis use: comparison with abuse of stimulants and heroin with regard to attention, memory and executive functions. A1 - Lundqvist,Thomas, PY - 2004/06/18/received PY - 2005/01/24/revised PY - 2005/02/27/accepted PY - 2005/6/1/pubmed PY - 2005/9/9/medline PY - 2005/6/1/entrez SP - 319 EP - 30 JF - Pharmacology, biochemistry, and behavior JO - Pharmacol. Biochem. Behav. VL - 81 IS - 2 N2 - This review aims to compare cognitive consequence between cannabis, and stimulants and heroin with regards to attention, memory and executive functions. The available studies using brain imaging techniques and neuropsychological tests show that acutely, all drugs create a disharmony in the neuropsychological network, causing a decrease of activity in areas responsible for short-term memory and attention, with the possible exception of heroin. Cannabis induces loss of internal control and cognitive impairment, especially of attention and memory, for the duration of intoxication. Heavy cannabis use is associated with reduced function of the attentional/executive system, as exhibited by decreased mental flexibility, increased perserveration, and reduced learning, to shift and/or sustain attention. Recent investigations on amphetamine/methamphetamine have documented deficits in learning, delayed recall, processing speed, and working memory. MDMA users exhibit difficulties in coding information into long-term memory, display impaired verbal learning, are more easily distracted, and are less efficient at focusing attention on complex tasks. The degree of executive impairment increases with the severity of use, and the impairments are relatively lasting over time. Chronic cocaine users display impaired attention, learning, memory, reaction time and cognitive flexibility. Heroin addiction may have a negative effect on impulse control, and selective processing. SN - 0091-3057 UR - https://www.unboundmedicine.com/medline/citation/15925403/Cognitive_consequences_of_cannabis_use:_comparison_with_abuse_of_stimulants_and_heroin_with_regard_to_attention_memory_and_executive_functions_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0091-3057(05)00133-4 DB - PRIME DP - Unbound Medicine ER -