IDEAS home Printed from https://ideas.repec.org/a/plo/pone00/0247133.html
   My bibliography  Save this article

Differences in fractal patterns and characteristic periodicities between word salads and normal sentences: Interference of meaning and sound

Author

Listed:
  • Jun Shimizu
  • Hiromi Kuwata
  • Kazuo Kuwata

Abstract

Fractal dimensions and characteristic periodicities were evaluated in normal sentences, computer-generated word salads, and word salads from schizophrenia patients, in both Japanese and English, using the random walk patterns of vowels. In normal sentences, the walking curves were smooth with gentle undulations, whereas computer-generated word salads were rugged with mechanical repetitions, and word salads from patients with schizophrenia were unreasonably winding with meaningless repetitive patterns or even artistic cohesion. These tendencies were similar in both languages. Fractal dimensions between normal sentences and word salads of schizophrenia were significantly different in Japanese [1.19 ± 0.09 (n = 90) and 1.15 ± 0.08 (n = 45), respectively] and English [1.20 ± 0.08 (n = 91), and 1.16 ± 0.08 (n = 42)] (p 10) periodicities between normal sentences and word salads from schizophrenia patients were predominantly observed at 25.6 (p 10) presented here are sensitive to discriminate between schizophrenia and healthy mental state, and could be implemented in social robots to assess the mental state of people in care.

Suggested Citation

  • Jun Shimizu & Hiromi Kuwata & Kazuo Kuwata, 2021. "Differences in fractal patterns and characteristic periodicities between word salads and normal sentences: Interference of meaning and sound," PLOS ONE, Public Library of Science, vol. 16(2), pages 1-13, February.
    • Handle: RePEc:plo:pone00:0247133
    DOI: 10.1371/journal.pone.0247133
    as

    Download full text from publisher

    File URL: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0247133
    Download Restriction: no
    File URL: https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0247133&type=printable
    Download Restriction: no
    File URL: https://libkey.io/10.1371/journal.pone.0247133?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
    ---><---

    References listed on IDEAS

    as
    1. Derya Çokal & Vitor Zimmerer & Douglas Turkington & Nicol Ferrier & Rosemary Varley & Stuart Watson & Wolfram Hinzen, 2019. "Disturbing the rhythm of thought: Speech pausing patterns in schizophrenia, with and without formal thought disorder," PLOS ONE, Public Library of Science, vol. 14(5), pages 1-14, May.
    2. Yukie Sano & Hideki Takayasu & Shlomo Havlin & Misako Takayasu, 2019. "Identifying long-term periodic cycles and memories of collective emotion in online social media," PLOS ONE, Public Library of Science, vol. 14(3), pages 1-17, March.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Ortal Slobodin & Ilia Plochotnikov & Idan-Chaim Cohen & Aviad Elyashar & Odeya Cohen & Rami Puzis, 2022. "Global and Local Trends Affecting the Experience of US and UK Healthcare Professionals during COVID-19: Twitter Text Analysis," IJERPH, MDPI, vol. 19(11), pages 1-17, June.
    2. Rizwan Raheem Ahmed & Dalia Streimikiene & Zahid Ali Channar & Hassan Abbas Soomro & Justas Streimikis & Grigorios L. Kyriakopoulos, 2022. "The Neuromarketing Concept in Artificial Neural Networks: A Case of Forecasting and Simulation from the Advertising Industry," Sustainability, MDPI, vol. 14(14), pages 1-24, July.
    3. Qing Yang & Naeem Hayat & Abdullah Al Mamun & Zafir Khan Mohamed Makhbul & Noor Raihani Zainol, 2022. "Sustainable customer retention through social media marketing activities using hybrid SEM-neural network approach," PLOS ONE, Public Library of Science, vol. 17(3), pages 1-23, March.

    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:pone00:0247133. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.