Evidence map›Paper›PMID 29587688›Full record

Trial reportBMC psychiatry2018

Computer-assisted cognitive remediation therapy increases hippocampal volume in patients with schizophrenia: a randomized controlled trial.

Tsubasa Morimoto, Yasuhiro Matsuda, Kiwamu Matsuoka, Fumihiko Yasuno, Emi Ikebuchi, Hiroyuki Kameda, Toshiaki Taoka, Toshiteru Miyasaka, Kimihiko Kichikawa, Toshifumi Kishimoto

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC psychiatry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 pooled it
2.8field-weighted citation impact, top 9% 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

18 citing papers in PubMed, 3 syntheses or guidelines pooled it, 45 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

10 authors at 4 institutions in 1 country.

Tsubasa MorimotoDepartment of Psychiatry, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan.
Yasuhiro MatsudaDepartment of Psychiatry, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan. yasu-matsuda@naramed-u.ac.jp.
Kiwamu MatsuokaDepartment of Psychiatry, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan.
Fumihiko YasunoDepartment of Psychiatry, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan.
Emi IkebuchiDepartment of Psychiatry, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan.
Hiroyuki KamedaSchool of Computer Science, Tokyo University of Technology, 1404-1 Katakuramachi, Hachioji City, Tokyo, 192-0982, Japan.
Toshiaki TaokaDepartment of Radiology, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.
Toshiteru MiyasakaDepartment of Radiology, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan.
Kimihiko KichikawaDepartment of Radiology, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan.
Toshifumi KishimotoDepartment of Psychiatry, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan.
Nara Medical University · JPNagoya University Hospital · JPTeikyo University · JPTokyo University of Technology · JP

Funding

Japan Society for the Promotion of Science JP16H05377Japan Society for the Promotion of Science JP16K19779Japan Society for the Promotion of Science JP25861024
6 · The paper itself

Abstract

backgroundCognitive remediation therapy (CRT) effectively reduces neurocognitive impairment in patients with schizophrenia, but few studies have used structural neuroimaging methods to assess its neuroanatomical effects. We investigated these effects, as well as the association between changes in cortical volume and neurocognitive performance.

methodBetween August 2013 and September 2016, we performed a randomized controlled study comprising a CRT group (16 individuals) and a treatment-as-usual (TAU) group (15 individuals) of patients with schizophrenia. CRT participants engaged in twice-weekly computer-assisted CRT sessions and weekly group meetings for 12 weeks. T1-weighted magnetic resonance imaging was performed before and after the intervention period, and whole-brain voxel-based morphometric analysis was used to detect significant cortical gray matter volume changes. We also assessed the correlation between cortical volume changes and CRT-derived neurocognitive improvements.

resultsThe CRT group exhibited significantly greater improvements than the TAU group in verbal fluency (P = 0.012) and global cognitive scores (P = 0.049). The CRT group also exhibited significantly greater increases in right hippocampal volume than the TAU group (P < 0.001). Changes in verbal fluency scores and right hippocampal volumes were positively correlated (r = 0.53, P = 0.001).

conclusionWe found that CRT significantly increased right hippocampal volumes and that these enhancements were positively correlated with changes in verbal fluency scores. Our results indicate that CRT induces cognitive improvement through hippocampal plasticity.

trial registrationRegistration number: UMIN000026146 , 2017/02/15, retrospectively registered.

Indexed as

Schizophrenic PsychologyAdultBrainCognitive RemediationFemaleHippocampusHumansMagnetic Resonance ImagingMaleSchizophreniaTemporal LobeTherapy, Computer-AssistedTreatment OutcomeCognitive remediationHippocampusJcoresRehabilitationSchizophreniaStructural neuroimaging

Identifiers

PMID29587688
PMCPMC5870916
OpenAlexW2801370020

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.