Evidence map›Paper›PMID 35982362›Full record

SynthesisNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2022

N200 and P300 component changes in Parkinson's disease: a meta-analysis.

Hui Xu, Lihua Gu, Shiyao Zhang, Yuchen Wu, Xiaojin Wei, Caiyan Wang, Yuhan Xu, Yijing Guo

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.7field-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

17 citing papers in PubMed, 26 citations in OpenAlex.

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  5. N200 and P300 as neurophysiological markers of the cognitive continuum in Parkinson's disease: insights from an inhibitory control task.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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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.

Hui Xu *Department of Neurology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, 210009, Jiangsu Province, China.
Lihua Gu *Department of Neurology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, 210009, Jiangsu Province, China.
Shiyao ZhangDepartment of Neurology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, 210009, Jiangsu Province, China.
Yuchen WuDepartment of Neurology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, 210009, Jiangsu Province, China.
Xiaojin WeiDepartment of Neurology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, 210009, Jiangsu Province, China.
Caiyan WangDepartment of Neurology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, 210009, Jiangsu Province, China.
Yuhan XuDepartment of Neurology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, 210009, Jiangsu Province, China.
Yijing GuoDepartment of Neurology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, 210009, Jiangsu Province, China. guoyijingseu@126.com.ORCID http://orcid.org/0000-0002-6638-8963
Zhongda Hospital Southeast University · CN

Funding

Natural Science Foundation of China 81901108
6 · The paper itself

Abstract

backgroundCognitive impairment can seriously affect the quality of life of Parkinson's disease (PD) patients. Although numerous studies showed that N200, P300 latency and amplitude are correlated with cognitive functions, there is a sufficient amount of controversial results. Therefore, it is necessary to conduct a meta-analysis of N200, P300 latency and amplitude data of event-related potential (ERP) in PD.

methodsWe systematically searched on PubMed and Web of Science for PD-related ERP studies published before December 2021. Standard mean difference (SMD) and 95% confidence interval (CI) estimates of N200 and P300 components were compared among PD patients, PD dementia (PDD) patients, PD non-dementia (PDND) patient, and healthy control (HC).

resultsOur meta-analysis showed prolonged N200 latency at the Fz, Cz electrode sites, prolonged P300 latency at the Fz sites in PD patients, compared to HC; prolonged N200 latency at the Cz, Pz electrode sites in PDND patients, compared to HC; prolonged P300 latency at the Cz site in PDD patients, compared to PDND patients; and reduced P300 amplitude at the Fz electrode site in PDND patients, compared to HC.

conclusionsN200 and P300 component may be potential electrophysiological biomarkers of early cognitive impairment in PD patients. Future studies are needed to confirm this conclusion. Estimates of N200 and P300 component can be a valuable support for clinicians in diagnosis of early cognitive impairment in PD patients due to the simplicity and non-invasiveness of the procedure.

Indexed as

Cognitive DysfunctionParkinson DiseaseEvent-Related Potentials, P300Evoked PotentialsHumansQuality of LifeEvent-related potentialParkinson’s Disease

Identifiers

PMID35982362
OpenAlexW4293067675

What OpenQuestion holds

Textmetadata
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.