Publications by authors named "Hei-Yin Hydra Ng"

Background: Recent advancements in virtual reality (VR) and biofeedback (BF) technologies have opened new avenues for breathing training. Breathing training has been suggested as an effective means for mental disorders, but it is difficult to master the technique at the beginning. VR-BF technologies address the problem of breathing, and visualizing breathing may facilitate the learning of breathing training.

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Article Synopsis
  • Mindfulness practices enhance interoceptive awareness and emotional regulation by altering brain functions, with EEG connectivity showing potential for differentiating between individuals with varying mindfulness experiences.
  • This study investigated the use of Directed Transfer Function (dDTF) to classify participants' mindfulness history and optimized prediction accuracy through comparisons of different machine learning algorithms.
  • Results indicated that the decision tree algorithm achieved the highest prediction accuracy of 91.7% during the resting state, and essential EEG channels revealed that maintaining just four out of 19 channels still yielded a high accuracy of 83.3%.
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Mindfulness refers to a mental state of awareness of internal experience without judgment. Studies have suggested that each mindfulness practice may involve a unique mental state, but the underlying neurophysiological mechanisms remain unknown. Here we examined how distinct mindfulness practices after mindfulness-based intervention alter brain functionality.

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Practicing mindfulness, focusing attention on the internal and external experiences occurring in the present moment with open and nonjudgement stance, can lead to the development of emotional regulation skills. Yet, the effective connectivity of brain regions during mindfulness has been largely unexplored. Studies have shown that mindfulness practice promotes functional connectivity in practitioners, potentially due to improved emotional regulation abilities and increased connectivity in the lateral prefrontal areas.

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Mindfulness-based stress reduction has been proven to improve mental health and quality of life. This study examined how mindfulness training and various types of mindfulness practices altered brain activity. : Specifically, the spectral powers of scalp electroencephalography of the mindfulness-based stress reduction (MBSR) group (=17) who underwent an 8-week MBSR training-including mindful breathing and body-scan-were evaluated and compared with those of the waitlist controls (=14).

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