To determine the polysomnography characteristics during sleep paralysis, false awakenings, and lucid dreaming (which are states intermediate to rapid eye movement [REM] sleep and wake but exceptionally observed in sleep laboratory). In 5 participants, we captured 5 episodes of sleep paralysis (2 time marked with the ocular left-right-left-right code normally used to signal lucid dreaming, 1...
The aim of this study was to review the available findings on sex-related differences for sleep disorders, dreams and nightmares. We explored the PubMed, EMBASE and Google Scholar electronic databases, with regards to the searching terms 'sleep', 'dreams', and 'nightmares' associated with 'sex' and/or 'gender'. Moreover, other supplementary terms for the searching strategy were 'chronobiology',...
This paper offers new arguments to reject the alleged dream of immortality. In order to do this, I firstly introduce an amendment to Michael Hauskeller’s approach of the “immortalist fallacy”. I argue that the conclusion “we (normally) do not want to live forever” does not follow from the premise “we (normally) do not want to die”. Next, I propose the philosophical turn from “normally” to...
It is argued that psi-critics Reber and Alcock have lifted the debate from the impasse concerning the evidence for the existence of psi phenomena, toward focusing on understanding the nature of the phenomena. This focus concerns the demand to show that statistical findings are not anomalies but reflect real cause and effect relationships and to find a common theoretical framework for what...
Abstract A common observation in EEG research is that consciousness vanishes with the appearance of delta (1–4 Hz) waves, particularly when those waves are high amplitude. High amplitude delta oscillations are frequently observed in states of diminished consciousness, including slow wave sleep, anaesthesia, generalized epileptic seizures, and disorders of consciousness, such as coma and the...
Although the precise neural correlates of consciousness have not yet been identified, there is one neurochemical marker that appears to track with our capacity to experience something: acetylcholine concentration in the cerebral cortex. Cortical acetylcholine concentration is high during wakefulness, decreases during slow-wave sleep, and increases again during rapid eye movement sleep, when we...
This review illustrates the relevance of shamanism and its evolution under effects of psilocybin as a framework for identifying evolved aspects of psychedelic set and setting. Effects of 5HT2 psychedelics on serotonin, stress adaptation, visual systems and personality illustrate adaptive mechanisms through which psychedelics could have enhanced hominin evolution as an environmental factor...
Dream research has advanced significantly over the last twenty years, thanks to the new applications of neuroimaging and electrophysiological techniques. Many findings pointed out that mental activity during sleep and wakefulness shared similar neural bases. On the other side, recent studies have highlighted that dream experience is promoted by significant brain activation, characterized by...
ABSTRACT This article proposes an historical reading of Shutter Island (Martin Scorsese, 2010) that weaves a complex and puzzling narrative, swaying between the protagonist's dreams and memories (his involvement as an American soldier in the liberation of Dachau and the reprisals carried out there) and his concocted fantasy of revenge and heroism as a US Marshal. The purpose of this fantasy is...
Always rich in heterogeneous suggestions, Merleau-Pontian reflection does not fail to address the status of oneiric experience, which is as complex as it is neglected or even trivialized in phenomenological studies. Although it is sometimes taken into consideration, notably in Sartrean analyses, this is only to reconduct it to the activity of the imagining consciousness. This contribution thus...