IDEAS home Printed from https://ideas.repec.org/a/plo/pone00/0184476.html
   My bibliography  Save this article

Reproducibility of frequency-dependent low frequency fluctuations in reaction time over time and across tasks

Author

Listed:
  • Zan-Zan Liu
  • Hui-Jie Qu
  • Zhuo-Ling Tian
  • Meng-Jian Han
  • Yi Fan
  • Lie-Zhong Ge
  • Yu-Feng Zang
  • Hang Zhang

Abstract

Objective: Increased levels of reaction time variability (RTV) are characteristics of sustained attention deficits. The clinical significance of RTV has been widely recognized. However, the reliability of RTV measurements has not been widely studied. The present study aimed to assess the test-retest reliability of RTV conventional measurements, e.g., the standard deviation (SD), the coefficient of variation (CV), and a new measurement called the amplitude of low frequency fluctuation (ALFF) of RT. In addition, we aimed to assess differences and similarities of these measurements between different tasks. Method: Thirty-seven healthy college students participated in 2 tasks, i.e., an Eriksen flanker task (EFT) and a simple reaction task (SRT), twice over a mean interval of 56 days. Conventional measurements of RTV including RT-SD and RT-CV were assessed first. Then the RT time series were converted into frequency domains, and RT-ALFF was further calculated for the whole frequency band (0.0023–0.167 Hz) and for a few sub-frequency bands including Slow-6 (

Suggested Citation

  • Zan-Zan Liu & Hui-Jie Qu & Zhuo-Ling Tian & Meng-Jian Han & Yi Fan & Lie-Zhong Ge & Yu-Feng Zang & Hang Zhang, 2017. "Reproducibility of frequency-dependent low frequency fluctuations in reaction time over time and across tasks," PLOS ONE, Public Library of Science, vol. 12(9), pages 1-13, September.
    • Handle: RePEc:plo:pone00:0184476
    DOI: 10.1371/journal.pone.0184476
    as

    Download full text from publisher

    File URL: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0184476
    Download Restriction: no
    File URL: https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0184476&type=printable
    Download Restriction: no
    File URL: https://libkey.io/10.1371/journal.pone.0184476?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:plo:pone00:0184476. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: plosone (email available below). General contact details of provider: https://journals.plos.org/plosone/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.