Evidence map›Paper›PMID 25857946›Full record

ArticleBrain research bulletin2015

In vivo evidence for neuroplasticity in older adults.

Fábio Henrique de Gobbi Porto, Anne Murphy Fox, Erich S Tusch, Farzaneh Sorond, Abdul H Mohammed, Kirk R Daffner

Open access · greenAbstract read
In one paragraph

Article in Brain research bulletin, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

14 citing papers in PubMed, 41 citations in OpenAlex.

  1. Trial
  2. Radical Imagination: An Afrofuturism and Creative Aging Program for Black Women's Brain Health and Wellness.International journal of environmental research and public health · 2025
    Article
  3. Repeated spaced paired-associative stimulation to the parietal-motor pathway maintains corticomotor excitability in older adults.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2025
    Article
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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 2 institutions in 2 countries.

Fábio Henrique de Gobbi PortoLaboratory of Healthy Cognitive Aging, Division of Cognitive and Behavioral Neurology and Center for Brain/Mind Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. Electronic address: portofhg@gmail.com.
Anne Murphy FoxLaboratory of Healthy Cognitive Aging, Division of Cognitive and Behavioral Neurology and Center for Brain/Mind Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. Electronic address: afox4@partners.org.
Erich S TuschLaboratory of Healthy Cognitive Aging, Division of Cognitive and Behavioral Neurology and Center for Brain/Mind Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. Electronic address: etusch@partners.org.
Farzaneh SorondDivision of Stroke and Cerebrovascular Disease, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. Electronic address: fsorond@partners.org.
Abdul H MohammedDepartment of Psychology, Linnaeus University, Växjö, Sweden; Center for Alzheimer Research, Department of NVS, Karolinska Institutet, Huddinge, Sweden. Electronic address: Abdul.mohammed@lnu.se.
Kirk R DaffnerLaboratory of Healthy Cognitive Aging, Division of Cognitive and Behavioral Neurology and Center for Brain/Mind Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. Electronic address: kdaffner@partners.org.
Brigham and Women's Hospital · USLinnaeus University · SE

Funding

ERP Investigations of Novelty Processing in Different Patterns of Cognitive AgingR01AG017935 · NIA · BRIGHAM AND WOMEN'S HOSPITAL · PI DAFFNER, KIRK R · 2002 to 2012
$4.5M
NIA NIH HHS R01 AG017935
6 · The paper itself

Abstract

Neuroplasticity can be conceptualized as an intrinsic property of the brain that enables modification of function and structure in response to environmental demands. Neuroplastic strengthening of synapses is believed to serve as a critical mechanism underlying learning, memory, and other cognitive functions. Ex vivo work investigating neuroplasticity has been done on hippocampal slices using high frequency stimulation. However, in vivo neuroplasticity in humans has been difficult to demonstrate. Recently, a long-term potentiation-like phenomenon, a form of neuroplastic change, was identified in young adults by differences in visual evoked potentials (VEPs) that were measured before and after tetanic visual stimulation (TVS). The current study investigated whether neuroplastic changes in the visual pathway can persist in older adults. Seventeen healthy subjects, 65 years and older, were recruited from the community. Subjects had a mean age of 77.4 years, mean education of 17 years, mean MMSE of 29.1, and demonstrated normal performance on neuropsychological tests. 1Hz checkerboard stimulation, presented randomly to the right or left visual hemi-field, was followed by 2min of 9Hz stimulation (TVS) to one hemi-field. After 2min of rest, 1Hz stimulation was repeated. Temporospatial principal component analysis was used to identify the N1b component of the VEPs, at lateral occipital locations, in response to 1Hz stimulation pre- and post-TVS. Results showed that the amplitude of factors representing the early and late N1b component was substantially larger after tetanic stimulation. These findings indicate that high frequency visual stimulation can enhance the N1b in cognitively high functioning old adults, suggesting that neuroplastic changes in visual pathways can continue into late life. Future studies are needed to determine the extent to which this marker of neuroplasticity is sustained over a longer period of time, and is influenced by age, cognitive status, and neurodegenerative disease.

Indexed as

AgedAgingBrainElectroencephalographyEvoked Potentials, VisualFemaleHumansMaleNeuronal PlasticityNeuropsychological TestsPhotic StimulationPrincipal Component AnalysisSignal Processing, Computer-AssistedNeuroplasticityNormal cognitive agingTetanic visualVisual evoked potentials (VEPs)

Identifiers

PMID25857946
PMCPMC4666311
OpenAlexW2074398523

What OpenQuestion holds

Textmetadata
LicenceTDM
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.