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  • Research Article
  • 10.1016/j.ijchp.2025.100588
Altered resting-state functional connectivity in individuals at risk for Alzheimer's disease: a longitudinal study.
  • Apr 1, 2025
  • International journal of clinical and health psychology : IJCHP
  • Pamela Chavarría-Elizondo + 12 more

  • Research Article
  • 10.1016/j.ijchp.2025.100567
The effects of transcranial magnetic stimulation on cognitive flexibility among undergraduates with insomnia symptoms: A prospective, single-blind, randomized control trial.
  • Apr 1, 2025
  • International journal of clinical and health psychology : IJCHP
  • Muyu Chen + 5 more

  • Research Article
  • 10.1016/j.ijchp.2025.100586
Impact of extreme physical exercise (28 consecutive marathons) on sleep time and structure.
  • Apr 1, 2025
  • International journal of clinical and health psychology : IJCHP
  • Gualberto Buela-Casal + 4 more

  • Open Access Icon
  • Research Article
  • Cite Count Icon 2
  • 10.1016/j.ijchp.2025.100578
A qualitative examination of sanctification: Sources and varieties of appraisals of sacredness.
  • Apr 1, 2025
  • International journal of clinical and health psychology : IJCHP
  • Elizabeth J Krumrei-Mancuso + 3 more

Most mental health professionals are expected to have some basic competency in religious and spiritual issues. Such competency includes knowledge about the role of religion/spirituality in people's lives, particularly as it relates to mental health. The current research explored people's cognitive appraisals of sanctification, by which individuals interpret stimuli to be sacred. To gain a better understanding of the spontaneous cognitive appraisals of sanctification people form during daily life, we randomly assigned religious and/or spiritual individuals (N = 144) to an event reconstruction of a time they experienced something as sacred, divine, miraculous, spiritual, holy, or blessed. We qualitatively coded 28 features of these event reconstructions. Participants' most common descriptions involved sanctification of people, relationships, and places that were not considered sacred in and of themselves, but were considered sacred by association to higher powers or transcendent realities. Common features of sacredness reconstructions included emotions and sensory experiences. We also observed differences in the features associated with each sacred adjective (sacred, divine, miraculous, spiritual, holy, or blessed). We discuss implications for mental health professionals and for the advancement of the science of sanctification.

  • Open Access Icon
  • Research Article
  • 10.1016/j.ijchp.2025.100570
Associations of psychological resilience with macro- and microstructures in NREM and REM sleep in adolescents.
  • Apr 1, 2025
  • International journal of clinical and health psychology : IJCHP
  • Chris Xie Chen + 7 more

  • Research Article
  • Cite Count Icon 1
  • 10.1016/j.ijchp.2025.100569
Modulating prefrontal cortex activity to alleviate stress-induced working memory deficits: A transcranial direct current (tDCS) study.
  • Apr 1, 2025
  • International journal of clinical and health psychology : IJCHP
  • Sumit Roy + 6 more

  • Research Article
  • 10.1016/j.ijchp.2025.100565
Association between anti-thyroid peroxidase antibody and insufficient sleep in euthyroid population.
  • Apr 1, 2025
  • International journal of clinical and health psychology : IJCHP
  • Yuji Shimizu + 10 more

  • Research Article
  • 10.1016/j.ijchp.2025.100575
Frequency-specific modulations for subcomponents of executive functions in the infra-slow frequency range -A combined O-tDCS and fNIRS study.
  • Apr 1, 2025
  • International journal of clinical and health psychology : IJCHP
  • Hang Yu + 8 more

  • Open Access Icon
  • Research Article
  • Cite Count Icon 3
  • 10.1016/j.ijchp.2025.100563
Clinical physiology of circadian rhythms: A systematic and hierarchized content analysis of circadian questionnaires.
  • Apr 1, 2025
  • International journal of clinical and health psychology : IJCHP
  • Julien Coelho + 8 more

Circadian rhythms are near-24 h patterns of physiology and behavior associated with several physical and mental health outcomes. Self-report questionnaires are routinely used and practical tools to assess circadian rhythms. However, the extent to which these questionnaires capture the relevant parameters and can be used interchangeably is unknown. We investigated different types of circadian manifestations using 14 circadian self-report questionnaires for adults. A systematic and hierarchical content analysis was combined with a visualization method. Jaccard indices were calculated to quantify the degree to which the questionnaires overlapped. Content analysis revealed 40 distinct manifestations, which we classified into five dimensions ("circadian phase," "circadian amplitude and stability," "nycthemeral timing," "nycthemeral regularity," and "circadian complaints"). The average Jaccard index was 0.150, indicating very weak content overlap. None of the 14 questionnaires explored all five dimensions. The Composite Scale of Morningness and the Morningness-Eveningness Questionnaire exhibited greater, but still limited, overlap with the other questionnaires (Jaccard indices of 0.255 and 0.251, respectively), and are the best instruments for assessing the circadian phase. Nycthemeral timing, which must be analyzed to measure the circadian misalignment in clinical and research settings, is only explored by the Munich Chronotype Questionnaire, but that instrument does not evaluate circadian amplitude and stability and only partially assesses nycthemeral regularity. Based on our preliminary analysis, we make recommendations regarding the circumstances in which some circadian questionnaires could prove more useful than the others. The results might also aid the definition and investigation of circadian health at the crossroads of physiology and behavior.

  • Research Article
  • Cite Count Icon 1
  • 10.1016/j.ijchp.2025.100571
Slow-paced breathing enhancing emotional control accompanied with the change of the ∼0.1 Hz heartbeat evoked EEG.
  • Apr 1, 2025
  • International journal of clinical and health psychology : IJCHP
  • Siwei Xiong + 6 more