Cited by 83Motor Control and AdaptationNeurological disorders and treatmentsControl Systems and Identification

Adaptive Fourier modeling for quantification of tremor

Open access
Riviere, Cameron N., Reich, Stephen G., Thakor, Nitish V.·1997·Journal of Neuroscience Methods

Abstract

A new computational method for quantification of tremor, the weighted frequency Fourier linear combiner (WFLC), is presented. This technique rapidly determines the frequency and amplitude of tremor by adjusting its filter weights according to a gradient search method. It provides continual tracking of frequency and amplitude modulations over the course of a test. By quantifying time-varying characteristics, the WFLC assists in correctly interpreting the results of spectral analysis, particularly for recordings exhibiting multiple spectral peaks. It therefore supplements spectral analysis, providing a more accurate picture of tremor than spectral analysis alone. The method has been incorporated into a desktop tremor measurement system to provide clinically useful analysis of tremor recorded during handwriting and drawing using a digitizing tablet. Simulated data clearly demonstrate tracking of variations in frequency and amplitude. Clinical recordings then show specific examples of quantification of time-varying aspects of tremor.

Integrity signals

Registry

Crossref · 10.1016/s0165-0270(97)02263-2

Cites

23 of 23 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

  • Pathological tremor tends to display a dominant frequency, and that frequency tends to remain constant with slight variations.

    “Pathological tremor (patients with essential tremor and Parkinson disease) tend to display tremor with a dominant frequency [5–8].”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Riviere, C. N., Reich, S. G., & Thakor, N. V.
Affiliations
Johns Hopkins University (US)
Corresponding author
Thakor, Nitish V.
Venue
Journal of Neuroscience Methods
Publisher
Elsevier BV
Published
1997-06
Volume
74
Issue
1
Pages
77-87
ISSN
0165-0270 (ISSN-L)
OpenAlex
W2089667477
Cited by
83
References
23
Citations by year
2026: 1 · 2025: 4 · 2024: 3 · 2023: 1 · 2022: 6 · 2021: 2 · 2019: 5 · 2018: 5 · 2017: 4 · 2016: 7 · 2015: 4 · 2014: 4 · 2013: 5 · 2012: 3
FWCI
0.23
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience Methods (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • U.S. Public Health Service (H133G30064)
  • National Institute on Disability and Rehabilitation Research
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
  • Physical Sciences › Engineering › Control and Systems Engineering › Control Systems and Identification
Keywords
tremor quantification, adaptive filtering, gradient search, frequency tracking, amplitude modulation, spectral analysis, digitizing tablet
MeSH terms
Algorithms, Fourier Analysis, Handwriting, Humans, Image Processing, Computer-Assisted, Microcomputers, Models, Neurological, Neurology, Parkinson Disease, Software, Tremor, Least-Squares Analysis

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