Evidence map›Paper›PMID 29722099›Full record

ArticleHuman brain mapping2018

Deficient supplementary motor area at rest: Neural basis of limb kinetic deficits in Parkinson's disease.

Stefanie Kübel, Katharina Stegmayer, Tim Vanbellingen, Sebastian Walther, Stephan Bohlhalter

Open access · bronzeAbstract read
In one paragraph

Article in Human brain mapping, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 3 pooled it
1.4field-weighted citation impact, top 18% 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, 3 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Altered regional spontaneous brain activity in Parkinson's disease: a meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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  6. Assessing Limb Apraxia in Quebec: Normative Study of the Brief Battery for the Evaluation of Praxis in Healthy French-Speaking Adults.Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 2026
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  9. Role of Diffusion Tensor Tractography in Diagnosis of Limb-Kinetic Apraxia in Stroke Patients: A Mini-Narrative Review.Medical science monitor : international medical journal of experimental and clinical research · 2022
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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

5 authors at 3 institutions in 1 country.

Stefanie KübelNeurocenter, Luzerner Kantonsspital, Spitalstrasse 31, Luzern 16, 6000, Switzerland.ORCID 0000-0001-5142-5955
Katharina StegmayerUniversity Hospital of Psychiatry, Bolligenstrasse 111, Bern 60, 3000, Switzerland.
Tim VanbellingenNeurocenter, Luzerner Kantonsspital, Spitalstrasse 31, Luzern 16, 6000, Switzerland.
Sebastian WaltherUniversity Hospital of Psychiatry, Bolligenstrasse 111, Bern 60, 3000, Switzerland.
Stephan BohlhalterNeurocenter, Luzerner Kantonsspital, Spitalstrasse 31, Luzern 16, 6000, Switzerland.
University Hospital of Bern · CHUniversity of Bern · CHLuzerner Kantonsspital · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Parkinson's disease (PD) patients frequently suffer from limb kinetic apraxia (LKA) affecting quality of life. LKA denotes an impairment of precise and independent finger movements beyond bradykinesia, which is reliably assessed by coin rotation (CR) task. BOLD fMRI detected activation of a left inferior parietal-premotor praxis network in PD during CR. Here, we explored which network site is most critical for LKA using arterial spin labeling (ASL). Based on a hierarchical model, we hypothesized that LKA would predominantly affect the functional integrity of premotor areas including supplementary motor areas (SMA). Furthermore, we suspected that for praxis function with higher demand on temporal-spatial processing such as gesturing, inferior parietal lobule (IPL) upstream to premotor areas would be essential. A total of 21 PD patients and 20 healthy controls underwent ASL acquisition during rest. Behavioral assessment outside the scanner involved the CR, finger tapping task, and the test of upper limb apraxia (TULIA). Whole-brain analysis of activity at rest showed a significant reduction of CR-related perfusion in the left SMA of PD. Furthermore, the positive correlation between SMA perfusion and CR, seen in controls, was lost in patients. By contrast, TULIA was significantly associated with the perfusion of left IPL in both patients and controls. In conclusion, the findings suggest that LKA in PD are linked to an intrinsic disruption of the left SMA function, which may only be overcome by compensatory network activation. In addition, gestural performance relies on IPL which remains available for functional recruitment in early PD.

Indexed as

Magnetic Resonance ImagingNeuroimagingAgedApraxia, IdeomotorFemaleFingersGesturesHumansMaleMiddle AgedMotor CortexParkinson DiseasePsychomotor PerformanceRestSpin LabelsSpin Labelsapraxiafunctional magnetic resonance imagingfunctional neuroimagingresting perfusion

Identifiers

PMID29722099
PMCPMC6866284
OpenAlexW2800113075

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.