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Dreaming: all studies

Page 138 of 359: studies 1,371 to 1,380 of 3,587, newest first. Back to the dreaming overview

Research

The Epiphyseal Re-entry Exaptation Hypothesis (EREH): A Testable Evolutionary Account of Self-Referential Qualia, Endogenous Imagery, and Proto-Dreaming

Anton Kleschev Alevtinowitch preprint

This paper develops and expands the Epiphyseal Re-entry Exaptation Hypothesis (EREH), a testable evolutionary proposal concerning the emergence of purely endogenous experience in vertebrates. The central claim is that neural circuitry associated with the ancestral median photoreceptive complex was not simply lost when direct photoreception regressed, but was at least partially exapted into a...

The latent geometry of dream content

Daniele Gatti, Tomaso Vecchi, Pietro Pietrini et al. preprint

Dreams provide a potential unique window into human cognition, yet it remains unclear whether dream content reflects structured representational organization or largely idiosyncratic expression. Here, we analyze a large-scale dataset of dream narratives (21,607 reports) using a transformer language model to construct a high-dimensional representational space of dreams, in which each report is...

Dreaming, sleep quality, and psychological distress among patients with chronic kidney disease at a national nephrology hospital in Sri Lanka: a descriptive cross-sectional study

E.m.s.k Edirisinghe, A.j.w.a.n Wimalasiri, S.S Sirithunga et al. preprint

Abstract Background Chronic kidney disease (CKD) imposes substantial psychological and sleep-related burdens that are frequently underdiagnosed in low- and middle-income countries (LMICs). Dream characteristics, an understudied marker of psychological state, have not previously been examined in CKD populations in Sri Lanka. This study assessed sleep quality, dream characteristics, and...

Social media reveals population dynamics of dysphoric dreaming

Remington Mallett, Laura Sowin, Michelle Carr preprint

Nightmares disrupt sleep health and predict future psychiatric diagnoses, yet reliable population estimates and their fluctuations over time are difficult to obtain. Here, we set out to test if a digital surveillance approach could be used to observe reliable estimates of nightmare frequency and dysphoric dreaming in the general population from social media posts. English-language posts from...

Dream Worlds and Dimensional Hypotheses: An Interdisciplinary Scientific Evaluation of Dreaming, Consciousness, and Claims of Access to other Dimensions

G Samuelson preprint

Dreaming is among the most vivid demonstrations that consciousness can occur in a state of relative sensory disconnection. This paper reviews whether dream experience is better explained as an endogenous neurocognitive construction or as evidence of contact with another dimension, multiverse branch, or anomalous informational domain. The review integrates literature from the neuroscience of REM...

A computational account of dreaming: learning and memory consolidation

Qi Zhang preprint

A number of studies have concluded that dreaming is mostly caused by randomly arriving internal signals because “dream contents are random impulses”, and argued that dream sleep is unlikely to play an important part in our intellectual capacity. On the contrary, numerous functional studies have revealed that dream sleep does play an important role in our learning and other intellectual...

Unraveling the neural correlates of dream recall: Novel insights from deep convolutional nets

Arna Ghosh, Arthur Dehgan, Tarek Lajnef et al.

Dreams and our ability to recall them are among the most puzzling questions in sleep research. Specifically, putative differences in brain network dynamics between individuals with high versus low dream recall rates, are still poorly understood. In this study, we addressed this question as a classification problem where we applied deep convolutional networks (CNN) to sleep EEG recordings to...

Dream Content Discovery from Social Media Using AI

Anubhab Das, Sanja Šćepanović, Luca Maria Aiello et al. preprint

Abstract Dreaming is a fundamental but not fully understood part of human experience. Traditional dream content analysis practices, while popular and aided by over 130 unique scales and rating systems, have limitations. Often based on retrospective surveys or lab studies, and sometimes on in-home dream reports collected over some days, they struggle to be applied on a large scale or to show the...

Pre-sleep experiences shape neural activity and dream content in the sleeping brain

Deniz Kumral, Jessica Palmieri, Steffen Gais et al. preprint

Summary Dreams incorporate recent experiences, and memory-related brain activity is reactivated during sleep, suggesting that dreaming, memory consolidation and reactivation are tightly linked. We devised a paradigm to investigate whether memory reprocessing during sleep contributes to dreaming. Participants listened to different audiobooks before falling asleep, introducing dissimilar...

The Role of Neuronal Chain Reactivation During Sleep in Shaping Dream Content

Sergei Achimov preprint

This paper proposes a theoretical model suggesting that the experience of dreams is linked to the process of neural network reactivation during sleep, specifically as a consequence of synaptic cleft clearance. The model argues that during periods of wakefulness, the brain operates on a much larger number of thoughts simultaneously than we are consciously aware of, with many thoughts being...