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P. Simor

2 papers in the library · publishing 2023

Papers

Interrelations between insomnia, dreaming, and schizotypy in the general population: A network model

European Psychiatry November 17, 2023 N. Báthori, B. Polner, P. Simor

A network analysis of 1,419 general-population adults (77% female) mapped connections among specific insomnia symptoms, dreaming features, and schizotypy dimensions. Disorganization, frequent awakenings, and nightmares were the most central nodes within their respective clusters. Frequent nightmares acted as a bridge, linking unusual perceptual experiences with frequent awakenings. The results suggest that particular sleep complaints and specific schizotypy dimensions are differentially connected, highlighting heterogeneity often masked by umbrella terms like insomnia and psychosis.

The autonomic activity of nightmare sufferers during sleep and emotion-evoking picture viewing

European Psychiatry November 17, 2023 V. Tomacsek, B. Blaskovich, R. Reichardt et al.

People with nightmare disorder show faster heart rates during sleep, particularly before and during REM sleep, compared to healthy controls, but their heart rate variability is not lower. During an emotional picture-rating task while awake, they also show different heart rate and variability patterns, suggesting altered emotion regulation. Their subjective ratings of the pictures did not differ from controls. The findings point to both stable autonomic changes during sleep and situation-dependent responses to emotional stimuli in nightmare disorder.