Evidence map›Paper›PMID 34635149›Full record

ArticleAlzheimer's research & therapy2021

Protocols for cognitive enhancement. A user manual for Brain Health Services-part 5 of 6.

Andrea Brioschi Guevara, Melanie Bieler, Daniele Altomare, Marcelo Berthier, Chantal Csajka, Sophie Dautricourt, Jean-François Démonet, Alessandra Dodich, Giovanni B Frisoni, Carlo Miniussi and 4 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.9field-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

20 citing papers in PubMed, 26 citations in OpenAlex.

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  5. Subjective cognitive decline: Memory complaints, cognitive awareness, and metacognition.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
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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

14 authors at 7 institutions in 5 countries.

Andrea Brioschi Guevara *Centre Leenaards de la Mémoire, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland. Andrea.Brioschi-Guevara@chuv.ch.
Melanie Bieler *Centre Leenaards de la Mémoire, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
Daniele AltomareLaboratory of Neuroimaging of Aging (LANVIE), University of Geneva, Geneva, Switzerland.ORCID http://orcid.org/0000-0003-1905-8993
Marcelo BerthierUnit of Cognitive Neurology and Aphasia, Centro de Investigaciones Médico-Sanitarias, University of Malaga, Malaga, Spain.
Chantal CsajkaCenter for Research and Innovation in clinical Pharmaceutical Sciences, University Hospital and University of Lausanne, Lausanne, Switzerland.
Sophie DautricourtNormandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France.
Jean-François DémonetCentre Leenaards de la Mémoire, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
Alessandra DodichCenter for Mind/Brain Sciences - CIMeC, University of Trento, Rovereto, Italy.
Giovanni B FrisoniLaboratory of Neuroimaging of Aging (LANVIE), University of Geneva, Geneva, Switzerland.
Carlo MiniussiCenter for Mind/Brain Sciences - CIMeC, University of Trento, Rovereto, Italy.
José Luis MolinuevoBarcelonaβeta Brain Research Center, Pasqual Maragall Foundation, Barcelona, Spain.
Federica RibaldiLaboratory of Neuroimaging of Aging (LANVIE), University of Geneva, Geneva, Switzerland.
Philip ScheltensAlzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands.
Gael ChételatNormandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", Institut Blood and Brain @ Caen-Normandie, Cyceron, 14000, Caen, France.
University of Geneva · CHUniversity Hospital of Lausanne · CHInserm · FRUniversity of Trento · ITAmsterdam Neuroscience · NLInstituto de Investigación Biomédica de Málaga · ESPasqual Maragall Foundation · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cognitive complaints in the absence of objective cognitive impairment, observed in patients with subjective cognitive decline (SCD), are common in old age. The first step to postpone cognitive decline is to use techniques known to improve cognition, i.e., cognitive enhancement techniques.We aimed to provide clinical recommendations to improve cognitive performance in cognitively unimpaired individuals, by using cognitive, mental, or physical training (CMPT), non-invasive brain stimulations (NIBS), drugs, or nutrients. We made a systematic review of CMPT studies based on the GRADE method rating the strength of evidence.CMPT have clinically relevant effects on cognitive and non-cognitive outcomes. The quality of evidence supporting the improvement of outcomes following a CMPT was high for metamemory; moderate for executive functions, attention, global cognition, and generalization in daily life; and low for objective memory, subjective memory, motivation, mood, and quality of life, as well as a transfer to other cognitive functions. Regarding specific interventions, CMPT based on repeated practice (e.g., video games or mindfulness, but not physical training) improved attention and executive functions significantly, while CMPT based on strategic learning significantly improved objective memory.We found encouraging evidence supporting the potential effect of NIBS in improving memory performance, and reducing the perception of self-perceived memory decline in SCD. Yet, the high heterogeneity of stimulation protocols in the different studies prevent the issuing of clear-cut recommendations for implementation in a clinical setting. No conclusive argument was found to recommend any of the main pharmacological cognitive enhancement drugs ("smart drugs", acetylcholinesterase inhibitors, memantine, antidepressant) or herbal extracts (Panax ginseng, Gingko biloba, and Bacopa monnieri) in people without cognitive impairment.Altogether, this systematic review provides evidence for CMPT to improve cognition, encouraging results for NIBS although more studies are needed, while it does not support the use of drugs or nutrients.

Indexed as

Cognitive DysfunctionQuality of LifeAcetylcholinesteraseBrainClinical ProtocolsCognitionHealth ServicesHumansSystematic Reviews as TopicAcetylcholinesteraseBrain Health ServiceCognitive enhancementCognitive interventionDrugsMindfulness meditationNon-invasive brain stimulationPhysical trainingSubjective cognitive decline

Identifiers

PMID34635149
PMCPMC8507160
OpenAlexW3206687130

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.