Evidence map›Paper›PMID 31156180›Full record

ArticleJournal of Alzheimer's disease : JAD2019

Gamma Band Light Stimulation in Human Case Studies: Groundwork for Potential Alzheimer's Disease Treatment.

Marggie Jones, Barry McDermott, Bárbara Luz Oliveira, Aoife O'Brien, Declan Coogan, Mark Lang, Niamh Moriarty, Eilis Dowd, Leo Quinlan, Brian Mc Ginley and 6 more

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06889025 (Electric and Physiological Markers, Underlying Mechanisms and Modulation of Cognitive Functioning and Therapeutic Improvement in Response to tACS/CBTp), which is not on this map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.2field-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.

NCT06889025 nanot yet recruitingnot on this mapstarted 2025, after this paper: background citation

Electric and Physiological Markers, Underlying Mechanisms and Modulation of Cognitive Functioning and Therapeutic Improvement in Response to tACS/CBTp (Transcranial Alternating Current Stimulation Applied at the Beginning of the Cognitive Behavioral Therapy for Psychosis Session) in Combination With the Usual Pharmacological Treatment in Schizophrenia

TypeinterventionalSponsorFelicia IfteneRan2025 to 2027Enrolled28ConditionsSchizophrenia, Schizoaffective DisorderArmsExperimental: tASC/CBTp: gamma band electric stimulation for 20 minutes at the beginning of the CBTp session, Sham Comparator
3 · Its place in the literature

Who cites it

36 citing papers in PubMed, 73 citations in OpenAlex.

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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

16 authors at 1 institution in 1 country.

Marggie JonesTranslational Medical Device Lab (TMD Lab), National University of Ireland Galway, Ireland.
Barry McDermottTranslational Medical Device Lab (TMD Lab), National University of Ireland Galway, Ireland.
Bárbara Luz OliveiraTranslational Medical Device Lab (TMD Lab), National University of Ireland Galway, Ireland.
Aoife O'BrienSchool of Psychology, National University of Ireland Galway, Ireland.
Declan CooganSchool of Psychology, National University of Ireland Galway, Ireland.
Mark LangSchool of Physics, National University of Ireland Galway, Ireland.
Niamh MoriartyDiscipline of Pharmacology, National University of Ireland Galway, Ireland.
Eilis DowdDiscipline of Pharmacology, National University of Ireland Galway, Ireland.
Leo QuinlanDiscipline of Physiology, National University of Ireland Galway, Ireland.
Brian Mc GinleyTranslational Medical Device Lab (TMD Lab), National University of Ireland Galway, Ireland.
Eoghan DunneTranslational Medical Device Lab (TMD Lab), National University of Ireland Galway, Ireland.
David NewellTranslational Medical Device Lab (TMD Lab), National University of Ireland Galway, Ireland.
Emily PorterTranslational Medical Device Lab (TMD Lab), National University of Ireland Galway, Ireland.
Muhammad Adnan ElahiTranslational Medical Device Lab (TMD Lab), National University of Ireland Galway, Ireland.
Martin O' HalloranTranslational Medical Device Lab (TMD Lab), National University of Ireland Galway, Ireland.
Atif ShahzadTranslational Medical Device Lab (TMD Lab), National University of Ireland Galway, Ireland.
Ollscoil na Gaillimhe – University of Galway · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIt is known that proteins associated with Alzheimer's disease (AD) pathogenesis are significantly reduced by 40 Hz entrainment in mice. If this were to translate to humans, verifying that such a light stimulus can induce a 40 Hz entrainment response in humans and harnessing insights from these case studies could be one step in the development of a multisensory device to prevent and treat AD.

objectiveVerify the inducement of a 40 Hz response in the human brain by a 40 Hz light stimulus and obtain insights that could potentially aid in the development of a multisensory device for the prevention and treatment of AD.

methodsElectroencephalographic brain activity was recorded simultaneously with application of stimulus at different frequencies and intensities. Power spectral densities were analyzed.

resultsEntrainment to visual stimuli occurred with the largest response at 40 Hz. The high intensity 40 Hz stimulus caused widespread entrainment. The number of electrodes demonstrating entrainment increased with increasing light intensity. Largest amplitudes for the high intensity 40 Hz stimulus were consistently found at the primary visual cortex. There was a harmonic effect at double the frequency for the 40 Hz stimulus. An eyes-open protocol caused more entrainment than an eyes-closed protocol.

conclusionIt was possible to induce widespread entrainment using a 40 Hz light stimulus in this sample cohort. Insights gleaned from these case studies could potentially aid in the development of a multisensory medical device to prevent and treat AD.

Indexed as

AdultAlzheimer DiseaseElectroencephalographyGamma RhythmHumansLightPhotic StimulationVisual Cortex40 HzAlzheimer’s diseasegamma bandhuman studylight stimulus

Identifiers

PMID31156180
PMCPMC6700637
OpenAlexW2947842732

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.