Evidence map›Paper›PMID 19165524›Full record

ArticleEuropean archives of psychiatry and clinical neuroscience2009

Exploratory eye movement dysfunction as a discriminator for schizophrenia : a large sample study using a newly developed digital computerized system.

Masahiro Suzuki, Sakae Takahashi, Eisuke Matsushima, Masahiko Tsunoda, Masayoshi Kurachi, Takashi Okada, Takuji Hayashi, Yohei Ishii, Kiichiro Morita, Hisao Maeda and 10 more

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Article in European archives of psychiatry and clinical neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
–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

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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

20 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  19. Do we have any solid evidence of clinical utility about the pathophysiology of schizophrenia?World psychiatry : official journal of the World Psychiatric Association (WPA) · 2011
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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

20 authors.

Masahiro SuzukiDept. of Neuropsychiatry, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Tokyo 173-8610, Japan.
Sakae Takahashi
Eisuke Matsushima
Masahiko Tsunoda
Masayoshi Kurachi
Takashi Okada
Takuji Hayashi
Yohei Ishii
Kiichiro Morita
Hisao Maeda
Seiji Katayama
Ryuzou Kawahara
Tatsui Otsuka
Yoshio Hirayasu
Mizuho Sekine
Yoshiro Okubo
Mai Motoshita
Katsuya Ohta
Makoto Uchiyama
Takuya Kojima

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In our previous studies, we identified that exploratory eye movement (EEM) dysfunction appears to be specific to schizophrenia. The availability of a biological marker specific to schizophrenia would be useful for clinical diagnosis of schizophrenia. Consequently, we performed the discriminant analysis between schizophrenics and non-schizophrenics on a large sample using the EEM test data and examined an application of the EEM for clinical diagnosis of schizophrenia. EEM performances were recorded in 251 schizophrenics and 389 non-schizophrenics (111 patients with mood disorders, 28 patients with neurotic disorders and 250 normal controls). The patients were recruited from eight university hospitals and three affiliated hospitals. For this study with a large sample, we developed a new digital computerized version of the EEM test, which automatically handled large amounts of data. We measured four parameters: number of eye fixations (NEF), total eye scanning length (TESL), mean eye scanning length (MESL) and responsive search score (RSS). These parameters of schizophrenics differed significantly from those of the other three groups. The stepwise regression analysis selected the TESL and the RSS as the valid parameters for discriminating between schizophrenics and non-schizophrenics. In the discriminant analysis using the RSS and TESL as prediction parameters, 184 of the 251 clinically diagnosed schizophrenics were discriminated as having schizophrenia (sensitivity 73.3%); and 308 of the 389 clinically diagnosed non-schizophrenic subjects were discriminated as non-schizophrenics (specificity 79.2%). Based on our findings we believe that the EEM measures may be useful for the clinical diagnosis of schizophrenia.

Indexed as

Exploratory BehaviorEye MovementsFixation, OcularPsychomotor PerformanceAdultDiagnosis, DifferentialEye Movement MeasurementsFemaleHumansMaleMiddle AgedMood DisordersNeuropsychological TestsNeurotic DisordersPsychiatric Status Rating ScalesRegression Analysis

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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.