Evidence map›Paper›PMID 26824701›Full record

ArticlePloS one2016

Neuropsychological Impairment and Its Association with Violence Risk in Japanese Forensic Psychiatric Patients: A Case-Control Study.

Hirofumi Nishinaka, Jun Nakane, Takako Nagata, Atsushi Imai, Noriomi Kuroki, Noriko Sakikawa, Mayu Omori, Osamu Kuroda, Naotsugu Hirabayashi, Yoshito Igarashi and 1 more

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 8% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

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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

11 authors at 4 institutions in 1 country.

Hirofumi NishinakaDivision of Clinical Neuroscience, Center for Forensic Mental Health, Chiba University, Chiba, Japan.
Jun NakaneNational Hospital Organization Shimofusa Psychiatric Medical Center, Chiba, Japan.
Takako NagataDepartment of Psychiatry, National Center of Neurology and Psychiatry, Tokyo, Japan.
Atsushi ImaiDepartment of Psychiatry, Tokyo Metropolitan Matsuzawa Hospital, Tokyo, Japan.
Noriomi KurokiDepartment of Psychiatry, Tokyo Metropolitan Matsuzawa Hospital, Tokyo, Japan.
Noriko SakikawaDepartment of Psychiatry, Tokyo Metropolitan Matsuzawa Hospital, Tokyo, Japan.
Mayu OmoriDepartment of Psychiatry, National Center of Neurology and Psychiatry, Tokyo, Japan.
Osamu KurodaDepartment of Psychiatry, Tokyo Metropolitan Matsuzawa Hospital, Tokyo, Japan.
Naotsugu HirabayashiDepartment of Psychiatry, National Center of Neurology and Psychiatry, Tokyo, Japan.
Yoshito IgarashiDivision of Law and Psychiatry, Center for Forensic Mental Health, Chiba University, Chiba, Japan.
Kenji HashimotoDivision of Clinical Neuroscience, Center for Forensic Mental Health, Chiba University, Chiba, Japan.
Tokyo Metropolitan Matsuzawa Hospital · JPCenter for Forensic Mental Health, Chiba University · JPNational Center of Neurology and Psychiatry · JPNational Hospital Organization · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn Japan, the legislation directing treatment of offenders with psychiatric disorders was enacted in 2005. Neuropsychological impairment is highly related to functional outcomes in patients with psychiatric disorders, and several studies have suggested an association between neuropsychological impairment and violent behaviors. However, there have been no studies of neuropsychological impairment in forensic patients covered by the Japanese legislation. This study is designed to examine the neuropsychological characteristics of forensic patients in comparison to healthy controls and to assess the relationship between neuropsychological impairment and violence risk.

methodsSeventy-one forensic patients with psychiatric disorders and 54 healthy controls (matched by age, gender, and education) were enrolled. The CogState Battery (CSB) consisting of eight cognitive domains, the Iowa Gambling Task (IGT) to test emotion-based decision making, and psychological measures of violence risk including psychopathy were used.

resultsForensic patients exhibited poorer performances on all CSB subtests and the IGT than controls. For each group, partial correlational analyses indicated that poor IGT performance was related to psychopathy, especially antisocial behavior. In forensic patients, the CSB composite score was associated with risk factors for future violent behavior, including stress and noncompliance with remediation attempts.

conclusionForensic patients with psychiatric disorders exhibit a wide range of neuropsychological impairments, and these findings suggest that neuropsychological impairment may increase the risk of violent behavior. Therefore, the treatment of neuropsychological impairment in forensic patients with psychiatric disorders is necessary to improve functional outcomes as well as to prevent violence.

Indexed as

AdultAgedAntipsychotic AgentsAntisocial Personality DisorderCase-Control StudiesFemaleForensic PsychiatryGamblingHumansJapanMaleMiddle AgedNeuropsychological TestsPhysical AbusePsychotic DisordersRiskAntipsychotic Agents

Identifiers

PMID26824701
PMCPMC4732612
OpenAlexW2345491570

What OpenQuestion holds

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LicenceCC BY
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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.