Evidence map›Paper›PMID 29719398›Full record

ArticleNeuropsychiatric disease and treatment2018

Comparison of changes in oxygenated hemoglobin during the tree-drawing task between patients with schizophrenia and healthy controls.

Shinya Nakano, Yoshihisa Shoji, Kiichiro Morita, Hiroyasu Igimi, Mamoru Sato, Youhei Ishii, Akihiko Kondo, Naohisa Uchimura

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

Article in Neuropsychiatric disease and treatment, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.5field-weighted citation impact, top 37% 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

5 citing papers in PubMed, 7 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

8 authors at 1 institution in 1 country.

Shinya NakanoCognitive and Molecular Research Institute of Brain Diseases, Kurume University, Kurume, Japan.
Yoshihisa ShojiCognitive and Molecular Research Institute of Brain Diseases, Kurume University, Kurume, Japan.
Kiichiro MoritaCognitive and Molecular Research Institute of Brain Diseases, Kurume University, Kurume, Japan.
Hiroyasu IgimiCognitive and Molecular Research Institute of Brain Diseases, Kurume University, Kurume, Japan.
Mamoru SatoCognitive and Molecular Research Institute of Brain Diseases, Kurume University, Kurume, Japan.
Youhei IshiiCognitive and Molecular Research Institute of Brain Diseases, Kurume University, Kurume, Japan.
Akihiko KondoCognitive and Molecular Research Institute of Brain Diseases, Kurume University, Kurume, Japan.
Naohisa UchimuraCognitive and Molecular Research Institute of Brain Diseases, Kurume University, Kurume, Japan.
Kurume University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTree-drawing test is used as a projective psychological test that expresses the abnormal internal experience in patients with schizophrenia (SZ). Despite the widely accepted view that the cognitive function is involved in characteristic tree-drawing in patients with SZ, no study has psychophysiologically examined it. The present study aimed to investigate the involvement of cognitive function during tree-drawing in patients with SZ. For that purpose, we evaluated the brain function in patients with SZ during a tree-drawing task by using near-infrared spectroscopy (NIRS) and compared them with those in healthy controls. PATIENTS AND

methodsThe subjects were 28 healthy controls and 28 patients with SZ. Changes in the oxygenated hemoglobin ([oxy-Hb]) concentration in both the groups during the task of drawing a tree imagined freely (free-drawing task) and the task of copying an illustration of a tree (copying task) were measured by using NIRS.

resultsBecause of the difference between the task conditions, [oxy-Hb] levels in controls during the free-drawing task were higher than that during the copying task at the bilateral frontal pole regions and left inferior frontal region. Because of the difference between the groups, [oxy-Hb] levels at the left middle frontal region, bilateral inferior frontal regions, bilateral inferior parietal regions, and left superior temporal region during the free-drawing task in patients were lower than that in controls.

conclusion[oxy-Hb] during the tree-drawing task in patients with SZ was lower than that in healthy controls. Our results suggest that brain dysfunction in patients with SZ might be associated with their tree-drawing.

Indexed as

attentioncognitive functionexecutive functionmnemonic retrievalnear-infrared spectroscopytree-drawing testworking memory

Identifiers

PMID29719398
PMCPMC5916263
OpenAlexW2801977751

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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.