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Decreased Spontaneous Eye Blink Rates in Chronic Cannabis Users: Evidence for Striatal Cannabinoid-Dopamine Interactions

Publication Date: November 18, 2011
Journal: PLOS ONE
Authors: Mikael A. Kowal, Lorenza S. Colzato & Bernhard Hommel
Volume: 6
Issue: 11
Pages: e26662
DOI: https://dx.plos.org/10.1371/journal.pone.0026662
Publisher URL: http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0026662
PubMed: http://www.ncbi.nlm.nih.gov/pubmed/22125599
PubMed Central: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3220669
Europe PMC: http://europepmc.org/abstract/MED/22125599
Web of Science: 000297789200004
Scopus: 81355132231
Mendeley: http://www.mendeley.com/research/decreased-spontaneous-eye-blink-rates-chronic-cannabis-users-evidence-striatal-cannabinoiddopamine-i

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{"title"=>"Decreased spontaneous eye blink rates in chronic cannabis users: Evidence for striatal cannabinoid-dopamine interactions", "type"=>"journal", "authors"=>[{"first_name"=>"Mikael A.", "last_name"=>"Kowal", "scopus_author_id"=>"54395559700"}, {"first_name"=>"Lorenza S.", "last_name"=>"Colzato", "scopus_author_id"=>"6507926993"}, {"first_name"=>"Bernhard", "last_name"=>"Hommel", "scopus_author_id"=>"7005738313"}], "year"=>2011, "source"=>"PLoS ONE", "identifiers"=>{"issn"=>"19326203", "pui"=>"362947329", "doi"=>"10.1371/journal.pone.0026662", "pmid"=>"22125599", "sgr"=>"81355132231", "scopus"=>"2-s2.0-81355132231", "isbn"=>"1932-6203 (Electronic)\\r1932-6203 (Linking)"}, "id"=>"dde90387-41b1-3644-8c88-71aede70a4a5", "abstract"=>"Chronic cannabis use has been shown to block long-term depression of GABA-glutamate synapses in the striatum, which is likely to reduce the extent to which endogenous cannabinoids modulate GABA- and glutamate-related neuronal activity. The current study aimed at investigating the effect of this process on striatal dopamine levels by studying the spontaneous eye blink rate (EBR), a clinical marker of dopamine level in the striatum. 25 adult regular cannabis users and 25 non-user controls matched for age, gender, race, and IQ were compared. Results show a significant reduction in EBR in chronic users as compared to non-users, suggesting an indirect detrimental effect of chronic cannabis use on striatal dopaminergic functioning. Additionally, EBR correlated negatively with years of cannabis exposure, monthly peak cannabis consumption, and lifetime cannabis consumption, pointing to a relationship between the degree of impairment of striatal dopaminergic transmission and cannabis consumption history.", "link"=>"http://www.mendeley.com/research/decreased-spontaneous-eye-blink-rates-chronic-cannabis-users-evidence-striatal-cannabinoiddopamine-i", "reader_count"=>58, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>6, "Student > Doctoral Student"=>7, "Researcher"=>7, "Student > Ph. D. Student"=>13, "Student > Postgraduate"=>4, "Other"=>5, "Student > Master"=>6, "Student > Bachelor"=>7, "Lecturer"=>1, "Lecturer > Senior Lecturer"=>1, "Professor"=>1}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>6, "Student > Doctoral Student"=>7, "Researcher"=>7, "Student > Ph. D. Student"=>13, "Student > Postgraduate"=>4, "Other"=>5, "Student > Master"=>6, "Student > Bachelor"=>7, "Lecturer"=>1, "Lecturer > Senior Lecturer"=>1, "Professor"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>1, "Biochemistry, Genetics and Molecular Biology"=>2, "Agricultural and Biological Sciences"=>7, "Medicine and Dentistry"=>7, "Neuroscience"=>7, "Philosophy"=>1, "Pharmacology, Toxicology and Pharmaceutical Science"=>2, "Physics and Astronomy"=>1, "Psychology"=>24, "Social Sciences"=>3, "Computer Science"=>3}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>7}, "Neuroscience"=>{"Neuroscience"=>7}, "Social Sciences"=>{"Social Sciences"=>3}, "Physics and Astronomy"=>{"Physics and Astronomy"=>1}, "Psychology"=>{"Psychology"=>24}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>7}, "Computer Science"=>{"Computer Science"=>3}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>2}, "Unspecified"=>{"Unspecified"=>1}, "Pharmacology, Toxicology and Pharmaceutical Science"=>{"Pharmacology, Toxicology and Pharmaceutical Science"=>2}, "Philosophy"=>{"Philosophy"=>1}}, "reader_count_by_country"=>{"Canada"=>1, "Netherlands"=>1, "United States"=>6, "Italy"=>1}, "group_count"=>4}

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PMC Usage Stats 211917 Feb 16:43 UTC

PMC Usage Stats | Further Information

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Relative Metric 48737110 May 16:27 UTC

Relative Metric

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F1000Prime24 Feb 12:13 UTC

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