Evidence map›Paper›PMID 34789832›Full record

ArticleScientific reports2021

Spontaneous eye blinking as a diagnostic marker in prolonged disorders of consciousness.

Alfonso Magliacano, Martin Rosenfelder, Nina Hieber, Andreas Bender, Anna Estraneo, Luigi Trojano

2 registry-linked trialsOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.1field-weighted citation impact, top 12% 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.

NCT06323031 recruitingnot on this mapstarted 2025, after this paper: background citation

Spontaneous Eye Blinking as a Diagnostic and Prognostic Marker in Patients With Disorders of Consciousness After Severe Acquired Brain Injury

TypeobservationalSponsorFondazione Don Carlo Gnocchi ETSRan2025 to 2026Enrolled70ConditionsDisorders of Consciousness
NCT06464549 completednot on this mapstarted 2025, after this paper: background citation

Spontaneous Eye Blinking Evaluation for Cognitive Assessment of Individuals With Severe Acquired Brain Injury

TypeobservationalSponsorAlfonso MagliacanoRan2025 to 2025Enrolled44ConditionsDisorders of Consciousness, Acquired Brain InjuryArmsEEG-EOG recording at rest and during an auditory oddball paradigm
3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 27 citations in OpenAlex.

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  18. Towards modern post-coma care based on neuroscientific evidence.International journal of clinical and health psychology : IJCHP
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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

6 authors at 4 institutions in 2 countries.

Alfonso Magliacano *IRCCS Fondazione Don Carlo Gnocchi, Florence, 50143, Italy.
Martin Rosenfelder *Therapiezentrum Burgau, 89331, Burgau, Germany.
Nina HieberTherapiezentrum Burgau, 89331, Burgau, Germany.
Andreas BenderTherapiezentrum Burgau, 89331, Burgau, Germany.
Anna EstraneoIRCCS Fondazione Don Carlo Gnocchi, Florence, 50143, Italy.
Luigi TrojanoDepartment of Psychology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy. luigi.TROJANO@unicampania.it.
Don Carlo Gnocchi Foundation · ITTherapiezentrum Burgau · DEUniversität Ulm · DEUniversity of Campania "Luigi Vanvitelli" · IT

Funding

H2020 Marie Skłodowska-Curie Actions 778234 - DoCMA project
6 · The paper itself

Abstract

Clinical diagnosis of patients with prolonged disorders of consciousness is very challenging. As spontaneous eye blink rate (EBR) is reliably correlated with cognitive activity in healthy individuals, we investigated whether EBR could serve as a marker of patients' level of consciousness. We assessed ten patients in prolonged Vegetative State/Unresponsive Wakefulness Syndrome (VS/UWS; three females; mean age = 50.3 ± 17.8 years) and fourteen patients in Minimally Conscious State (MCS; three females; mean age = 52.9 ± 17.5 years) at their admission to a rehabilitation unit after the acute phase. During two separate 3-min rest conditions, we recorded patients' EBR by integrating on-line visual and off-line electro-oculographic count. We also assessed EBR during two auditory oddball tasks, i.e. passive listening and active counting of target tones in a sub-group of patients. EBR was significantly higher in MCS than in VS/UWS; moreover, EBR positively correlated with a validated index of responsiveness derived from the Coma Recovery Scale-Revised. Patients' mean EBR showed no significant differences within sessions and across experimental conditions of the oddball task, in both VS/UWS and MCS. Our findings suggest that, at least in the post-acute phase, observing patients' EBR for 3 min at rest could help to discriminate between VS/UWS and MCS, improving accuracy of clinical diagnosis.

Indexed as

BiomarkersBlinkingAdultAgedCognitionConsciousness DisordersElectroencephalographyEvoked PotentialsFemaleHumansMaleMiddle AgedPersistent Vegetative StatePhysical StimulationPrognosisRestBiomarkers

Identifiers

PMID34789832
PMCPMC8599689
OpenAlexW3212280217

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.