Cited by 127Transcranial Magnetic Stimulation StudiesTreatment of Major DepressionNeuroscience and Neuropharmacology Research

Neuroplasticity in Depressed Individuals Compared with Healthy Controls

Open access
Player, Michael J, Taylor, Janet L, Weickert, Cynthia Shannon, Alonzo, Angelo, Sachdev, Perminder, Martin, Donel, Mitchell, Philip B, Loo, Colleen K·2013·Neuropsychopharmacology

Abstract

Several lines of evidence suggest that neuroplasticity is impaired in depression. This study aimed to compare neuroplasticity in 23 subjects with DSM-IV major depressive episode and 23 age- and gender-matched healthy controls, using an objective test that is independent of subject effort and motivation. Neuroplasticity was assessed in the motor cortex using a brain stimulation paradigm known as paired associative stimulation (PAS), which induces transient changes in motor cortical function. Motor cortical excitability was assessed before and after PAS using single-pulse transcranial magnetic stimulation (TMS) to induce motor evoked potentials (MEPs) in a hand muscle. After PAS, MEP amplitudes significantly increased in healthy controls compared with depressed subjects (P=0.002). The functional significance of motor cortical changes was assessed using a motor learning task-a computerized version of the rotor pursuit task. Healthy controls also performed better on motor learning (P=0.02). BDNF blood levels and genotype were assayed to determine any relationship with motor cortical plasticity. However, PAS results did not correlate with motor learning, nor appear to be related to BDNF measures. The significance of these findings is that it provides one of the first direct demonstrations of reduced neuroplasticity in depressed subjects, using an objective test.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/npp.2013.126

Cites

4 of 4 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • In humans, paired associative stimulation-induced increases in motor-evoked potential amplitudes are attenuated during major depressive episodes compared with healthy controls and normalize during remission.

    “However, proxy measurements such as paired associative stimulation (PAS) using a transcranial magnetic stimulation protocol have shown that PAS-induced increases in motor-evoked potential amplitudes were attenuated during major depressive episodes compared with healthy controls and normalized during remission151, 152.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Player, M. J., Taylor, J. L., Weickert, C. S., Alonzo, A., Sachdev, P., Martin, D., Mitchell, P. B., & Loo, C. K.
Affiliations
  • Black Dog Institute (AU)
  • UNSW Sydney (AU)
Corresponding author
Loo, Colleen K
Venue
Neuropsychopharmacology
Published
2013-05-16
Volume
38
Issue
11
Pages
2101-2108
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W2056013908
Cited by
127
References
4
Citations by year
2026: 7 · 2025: 10 · 2024: 8 · 2023: 9 · 2022: 11 · 2021: 12 · 2020: 11 · 2019: 4 · 2018: 10 · 2017: 10 · 2016: 10 · 2015: 19 · 2014: 6
FWCI
6.55
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • UNSWorks (University of New South Wales, Sydney, Australia) (submittedVersion, cc-by-nc-nd)
  • UNSWorks (UNSW Sydney) (submittedVersion, cc-by-nc-nd)
Topics
  • Life Sciences › Neuroscience › Neurology › Transcranial Magnetic Stimulation Studies
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
neuroplasticity, depression, major depressive episode, motor cortex excitability, paired associative stimulation, motor evoked potentials, motor learning, brain-derived neurotrophic factor, transcranial magnetic stimulation
MeSH terms
Adult, Depressive Disorder, Major, Major Depressive Disorder, Female, Genotype, Humans, Learning, Male, Motor Cortex, Neuronal Plasticity, Case-Control Studies, Evoked Potentials, Motor, Brain-Derived Neurotrophic Factor, Transcranial Magnetic Stimulation

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review