Evidence map›Paper›PMID 33241479›Full record

ArticlePsychopharmacology2021

Altered fronto-occipital connectivity during visual selective attention in regular cannabis users.

Abril Rangel-Pacheco, Brandon J Lew, Mikki D Schantell, Michaela R Frenzel, Jacob A Eastman, Alex I Wiesman, Tony W Wilson

Open access · greenAbstract read
In one paragraph

Article in Psychopharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.2field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Article
  3. Motor-Related Neural Dynamics are Modulated by Regular Cannabis Use Among People with HIV.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. The Effects of THC and Nicotine on Attention: A Narrative Review.Current topics in behavioral neurosciences · 2025
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. The neural oscillations serving task switching are altered in cannabis users.Journal of psychopharmacology (Oxford, England) · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. THC and CBD: Villain versus Hero? Insights into Adolescent Exposure.International journal of molecular sciences · 2023
    Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Abril Rangel-PachecoInstitute for Human Neuroscience, Boys Town National Research Hospital, 378 Bucher Circle, Boys Town, NE, 68010, USA.
Brandon J LewInstitute for Human Neuroscience, Boys Town National Research Hospital, 378 Bucher Circle, Boys Town, NE, 68010, USA.
Mikki D SchantellInstitute for Human Neuroscience, Boys Town National Research Hospital, 378 Bucher Circle, Boys Town, NE, 68010, USA.
Michaela R FrenzelInstitute for Human Neuroscience, Boys Town National Research Hospital, 378 Bucher Circle, Boys Town, NE, 68010, USA.
Jacob A EastmanInstitute for Human Neuroscience, Boys Town National Research Hospital, 378 Bucher Circle, Boys Town, NE, 68010, USA.
Alex I WiesmanCollege of Medicine, University of Nebraska Medical Center, Omaha, NE, USA.
Tony W WilsonInstitute for Human Neuroscience, Boys Town National Research Hospital, 378 Bucher Circle, Boys Town, NE, 68010, USA. tony.w.wilson@gmail.com.ORCID http://orcid.org/0000-0002-5053-8306
Boys Town National Research Hospital · USBoys Town · USMontreal Neurological Institute and Hospital · CAUniversity of Nebraska–Lincoln · US

Funding

Translational Imaging and Behavioral Assessment (TIBA) CoreP20GM130447 · NIGMS · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI Haiying Shen · 2020 to 2026
$20.7M
SIGNATURES OF CANNABIS ABUSE IN NEUROHIV (SCAN): AN INTEGRATED MOLECULAR AND IMAGING APPROACHR01DA047828 · NIDA · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI BECKER, JAMES T., FOX, HOWARD S · 2018 to 2022
$4.5M
THE PROGRESSIVE ELEVATION OF SPONTANEOUS CORTICAL ACTIVITY IN HAND (PESCAH) PROJECTR01MH116782 · NIMH · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI WILSON, TONY W · 2018 to 2022
$3.4M
Neurophysiological markers of HAND and the impact of aging: Evidence from MEGR01MH103220 · NIMH · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI WILSON, TONY W · 2014 to 2018
$2.5M
The impact of marijuana use on brain and cognitive function in HIV-infected patientsR03DA041917 · NIDA · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI WILSON, TONY W · 2016 to 2017
$306k
The impact of chronic cannabis use on neuromagnetic activity in persons living with HIVF30DA048713 · NIDA · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI LEW, BRANDON J. · 2019 to 2022
$179k
Oscillatory markers of cognitive deficits in patients with Alzheimer's diseaseF31AG055332 · NIA · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI WIESMAN, ALEX I · 2017 to 2019
$119k
National Science Foundation (US) 1539067NIA NIH HHS F31 AG055332NIA NIH HHS F31-AG055332NIDA NIH HHS F30 DA048713NIDA NIH HHS F30-DA048713NIDA NIH HHS R01 DA047828NIDA NIH HHS R01-DA047828NIDA NIH HHS R03 DA041917NIDA NIH HHS R03-DA041917NIGMS NIH HHS P20 GM130447NIGMS NIH HHS P20-GM130447NIMH NIH HHS R01 MH103220NIMH NIH HHS R01 MH116782NIMH NIH HHS R01-MH116782
6 · The paper itself

Abstract

RATIONALE AND

objectivesCognitive processing impairments have been associated with acute cannabis use, but there is mixed evidence regarding the cognitive effects of chronic cannabis use. Several neuroimaging studies have noted selective-attention processing differences in those who chronically use cannabis, but the neural dynamics governing the altered processing is unclear.

methodsTwenty-four adults reporting at least weekly cannabis use in the past 6 months on the Cannabis Use Disorder Identification Test - Revised were compared to 24 demographically matched controls who reported no prior cannabis use. All participants completed a visual selective attention processing task while undergoing magnetoencephalography. Time-frequency windows of interest were identified using a data-driven method, and spectrally specific neural activity was imaged using a beamforming approach.

resultsAll participants performed within normal range on the cognitive task. Regular cannabis users displayed an aberrant cognitive interference effect in the theta (4-8 Hz) frequency range shortly after stimulus onset (i.e., 0-250 ms) in the right occipital cortex. Cannabis users also exhibited altered functional connectivity between the right prefrontal cortex and right occipital cortices in comparison to controls.

conclusionsIndividuals with a history of regular cannabis use exhibited abnormal theta interference activity in the occipital cortices, as well as altered prefrontal-occipital functional connectivity in the theta range during a visual selective attention task. Such differences may reflect compensatory processing, as these participants performed within normal range on the task. Understanding the neural dynamics in chronic, regular cannabis users may provide insight on how long-term and/or frequent use may affect neural networks underlying cognitive processes.

Indexed as

MagnetoencephalographyAdultAttentionCognitionFemaleHumansMaleMarijuana UseMiddle AgedOccipital LobePrefrontal CortexVisual PerceptionYoung AdultMagnetoencephalographyMarijuanaMEGOscillationsTheta

Identifiers

PMID33241479
PMCPMC8068572
OpenAlexW3106640702

What OpenQuestion holds

Textmetadata
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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.