Evidence map›Paper›PMID 30069079›Full record

ArticleApplied cognitive psychology

Effects of cannabis on eyewitness memory: A field study.

Annelies Vredeveldt, Steve D Charman, Aukje den Blanken, Maren Hooydonk

Abstract read
In one paragraph

Article in Applied cognitive psychology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Cannabis increases susceptibility to false memory.Proceedings of the National Academy of Sciences of the United States of America · 2020
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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

4 authors.

Annelies VredeveldtDepartment of Criminal Law and Criminology, Faculty of Law Vrije Universiteit Amsterdam Amsterdam The Netherlands.ORCID 0000-0003-1925-4062
Steve D CharmanDepartment of Psychology Florida International University Miami USA.ORCID 0000-0002-5367-3124
Aukje den BlankenDepartment of Criminal Law and Criminology, Faculty of Law Vrije Universiteit Amsterdam Amsterdam The Netherlands.
Maren HooydonkDepartment of Criminal Law and Criminology, Faculty of Law Vrije Universiteit Amsterdam Amsterdam The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Eyewitnesses to crimes are regularly under the influence of drugs, such as cannabis. Yet there is very little research on how the use of cannabis affects eyewitness memory. In the present study, we assessed the effects of cannabis on eyewitness recall and lineup identification performance in a field setting. One hundred twenty visitors of coffee shops in Amsterdam viewed a videotaped criminal event, were interviewed about the event, and viewed a target-present or target-absent lineup. Witnesses under the influence of cannabis remembered significantly fewer correct details about the witnessed event than did sober witnesses, with no difference in incorrect recall. Cannabis use was not significantly associated with lineup identification performance, but intoxicated witnesses were significantly better at judging whether their lineup identification was accurate. Theoretical and practical implications of the findings are discussed.

Indexed as

cannabisdrugseyewitness memorylineup identification

Identifiers

PMID30069079
PMCPMC6055797

What OpenQuestion holds

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Registered trials

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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.