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March 28, 2023 Mark Titleman
This proposal incorporates three experiments concerning perceptual disturbances: one analyzing eye movement and associated electrical activity in hallucinating patients, another assessing dream recall in patients exposed to weak pulsed electromagnetic fields (EMF), and finally the examination of phosphene induction via transcranial magnetic stimulation (TMS) and associated electrical activity....
Journal of Psychiatric Research March 28, 2023 Matilde Gomes, Maria Picó Pérez, Inês Castro et al.
Obsessive-compulsive disorder (OCD) is a distressing disorder characterized by the presence of intrusive thoughts, images or urges (obsessions) and/or behavioral efforts to reduce the anxiety (compulsions). OCD lifetime prevalence varies between 1% and 3% in the general population and there are no reliable markers that support the diagnosis. In order to fill this gap, Computational Psychiatry...
International Conference on Biological Engineering and Medical Science March 24, 2023 Ren Qing
Sleep is a vital function to all species for reinvigorating the mental and physical senses. During sleep, specific synapses become less active to eliminate unneeded memories as other synapses strengthen to enhance memory consolidation. Healthy quality and longevity of sleep can also regulate moods by ridding fatigue and repairing integrity of the medial prefrontal cortex-amygdala connections....
March 14, 2023 Remington Mallett, Yasmeen Nahas, Kalina Christoff et al. 2 citations preprint
The flow of thought is persistent, and at times merciless. Mental content is generated throughout the day and into the night, moving forward predictably at times but surprisingly at others. Understanding what influences the trajectory of thought—how thoughts continuously unfold over time—has important implications for the diagnosis and treatment of thought disorders like schizophrenia and...
PsyArXiv March 14, 2023 Francisco T Gallo, Ignacio Spiousas, Nerea L Herrero et al. preprint
In this study, we examine the structural properties of dream reports that include non-lucid, lucid dreams (LDs) and out-of-body experiences (OBEs). We collected a set of 916 dream reports (728 non-lucid dreams, 122 LDs, 68 OBEs) obtained from 60 participants that kept a dream journal for two months. The collected reports were transformed into directed graphs, where each different word plays the...
PsyArXiv March 13, 2023 Francisco T Gallo, Nerea L Herrero, Antonela Tommasel et al. preprint
Lucid dreams (LDs) and out-of-body experiences (OBEs) are phenomena characterized by the return of higher cognitive abilities during sleep, including reflective self-awareness and abstract thought. Given the similarities in reflective self-awareness between LDs and OBEs, some authors consider them variations of the same phenomenon. This study aimed to compare the differences in content between...
March 6, 2023 Claudia Picard-Deland, Giulio Bernardi, Lisa Genzel et al. 2 citations preprint
Newly encoded memory traces are spontaneously reactivated during sleep. Since their discovery in the 1990s, these memory reactivations have been discussed as a potential neural basis for dream experiences. New results from animal and human research, as well as the rapidly growing field of sleep and dream engineering, provide essential insights into this question, revealing both strong parallels...
European Psychiatry March 1, 2023 Pierre A Geoffroy, Rodolphe Borand, Marine Ambar Akkaoui et al.
Introduction Sleep and circadian markers are of increasingly growing interest to help better predicting suicide. Indeed, specific sleep disorders and circadian rhythm disorders have been associated to suicidal behaviors, and the most replicated findings are insomnia and nightmares. Nevertheless, these interesting preliminary studies did not examine the chronology and trajectories of these dream...
Medicine March 1, 2023 Wei Wang, Bin Ling, Qian Chen et al.
Background: To evaluate the effect of pre-administration of esketamine intraoperatively on the occurrence of postpartum depression after cesarean section under combined spinal-epidural anesthesia. Methods: A total of 120 women aged 24 to 36 years undergoing cesarean section by spinal-epidural anesthesia with American Society of Anesthesiologists physical status II were enrolled. According to...
arXiv (Cornell University) February 28, 2023 Lorenzo Bertolini, Valentina Elce, Adriana Michalak et al. 1 citation preprint
In the field of dream research, the study of dream content typically relies on the analysis of verbal reports provided by dreamers upon awakening from their sleep. This task is classically performed through manual scoring provided by trained annotators, at a great time expense. While a consistent body of work suggests that natural language processing (NLP) tools can support the automatic...