Evidence map›Paper›PMID 34149345›Full record

ArticleFrontiers in neuroscience2021

Classification of Schizophrenia by Combination of Brain Effective and Functional Connectivity.

Zongya Zhao, Jun Li, Yanxiang Niu, Chang Wang, Junqiang Zhao, Qingli Yuan, Qiongqiong Ren, Yongtao Xu, Yi Yu

Abstract read
In one paragraph

Article in Frontiers in neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

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

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

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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

9 authors.

Zongya ZhaoSchool of Medical Engineering, Xinxiang Medical University, Xinxiang, China.
Jun LiSchool of International Education, Xinxiang Medical University, Xinxiang, China.
Yanxiang NiuSchool of Medical Engineering, Xinxiang Medical University, Xinxiang, China.
Chang WangSchool of Medical Engineering, Xinxiang Medical University, Xinxiang, China.
Junqiang ZhaoSchool of Medical Engineering, Xinxiang Medical University, Xinxiang, China.
Qingli YuanSchool of Medical Engineering, Xinxiang Medical University, Xinxiang, China.
Qiongqiong RenSchool of Medical Engineering, Xinxiang Medical University, Xinxiang, China.
Yongtao XuSchool of Medical Engineering, Xinxiang Medical University, Xinxiang, China.
Yi YuSchool of Medical Engineering, Xinxiang Medical University, Xinxiang, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

At present, lots of studies have tried to apply machine learning to different electroencephalography (EEG) measures for diagnosing schizophrenia (SZ) patients. However, most EEG measures previously used are either a univariate measure or a single type of brain connectivity, which may not fully capture the abnormal brain changes of SZ patients. In this paper, event-related potentials were collected from 45 SZ patients and 30 healthy controls (HCs) during a learning task, and then a combination of partial directed coherence (PDC) effective and phase lag index (PLI) functional connectivity were used as features to train a support vector machine classifier with leave-one-out cross-validation for classification of SZ from HCs. Our results indicated that an excellent classification performance (accuracy = 95.16%, specificity = 94.44%, and sensitivity = 96.15%) was obtained when the combination of functional and effective connectivity features was used, and the corresponding optimal feature number was 15, which included 12 PDC and three PLI connectivity features. The selected effective connectivity features were mainly located between the frontal/temporal/central and visual/parietal lobes, and the selected functional connectivity features were mainly located between the frontal/temporal and visual cortexes of the right hemisphere. In addition, most of the selected effective connectivity abnormally enhanced in SZ patients compared with HCs, whereas all the selected functional connectivity features decreased in SZ patients. The above results showed that our proposed method has great potential to become a tool for the auxiliary diagnosis of SZ.

Indexed as

classificationeffective connectivityfunctional connectivitymachine learningschizophrenia

Identifiers

PMID34149345
PMCPMC8209471

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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.