Altered distribution of resting periods of daily locomotor activity in patients with delayed sleep phase disorder

Marina Hirose, Toru Nakamura, Akiko Watanabe, Yuichi Esaki, Shigefumi Koike, Yoshiharu Yamamoto, Nakao Iwata, Tsuyoshi Kitajima

研究成果: ジャーナルへの寄稿学術論文査読

4 被引用数 (Scopus)

抄録

Delayed sleep phase disorder (DSPD) and mood disorders have a close relationship. However, the shared mechanisms by DSPD and mood disorders have not been well-elucidated. We previously found that micro-fluctuations in human behaviors are organized by robust statistical laws (behavioral organization), where the cumulative distributions of resting and active period durations take a power-law distribution form and a stretched exponential functional form, respectively. Further, we found that the scaling exponents of resting period distributions significantly decreased in major depressive disorder (MDD). In this study, we hypothesized that DSPD had similar characteristics of the altered behavioral organization to that of MDD. Locomotor activity data were acquired for more than 1 week from 17 patients with DSPD and 17 age- and gender-matched healthy participants using actigraphy. We analyzed the cumulative distributions of resting and active period durations in locomotor activity data and subsequently derived fitting parameters of those distributions. Similar to patients with MDD, we found that resting period distributions took a power-law form over the range of 2–100 min, with significantly lower values of scaling exponents γ in patients with DSPD compared with healthy participants. The shared alteration in γ suggests the existence of similar pathophysiology between DSPD and MDD.

本文言語英語
論文番号933690
ジャーナルFrontiers in Psychiatry
13
DOI
出版ステータス出版済み - 13-10-2022

All Science Journal Classification (ASJC) codes

  • 精神医学および精神衛生

フィンガープリント

「Altered distribution of resting periods of daily locomotor activity in patients with delayed sleep phase disorder」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル