I introduce a novel multidimensional framework tailored to investigate a set of phenomena that might appear intractable and render them amenable to scientific inquiry. In particular, I focus on examining altered states of consciousness that appear to the experiencing subject as “contentless” or “objectless” states in some form, either by having disrupted or reduced content of awareness, or content that appears as missing altogether. By drawing on empirical research, I propose a cluster of phenomenological dimensions aimed at enhancing our understanding (...) of this group of experiences of minimal awareness, including “Richness of the Content”, “Bodily-Awareness”, “Passage of Time”, “Attentional Focus”, and “Self-Revelation”. The result is a robust framework that provides precise scientific terminology, facilitating its operationalisation and adaptability for future empirical work. I show the explanatory power of this framework through a case study of the state of clear light sleep—a state widely reported by Indo-Tibetan Buddhist traditions as an instance of pure awareness during sleep, a state of consciousness-as-such. This rare phenomenon has gained increasing attention in contemporary analytic philosophy of mind for the study of the nature of consciousness. However, we still lack consensus on its characterisation and potential identity with other associated states. I end the paper by illustrating how the state of clear light sleep can be situated in relation to other associated states and more ordinary ones as regions of a multidimensional state space. (shrink)

This paper presents the results of the first study part of the research project ‘Objectless sleep experiences’ aimed at exploring the phenomenological blueprints of conscious sleep states that lack a distinct object of awareness. A total of 573 responses were collected from an online survey that asked about the incidence, frequency, and phenomenology of a range of sleep phenomena. The survey’s results provide a better understanding of the variety of sleep experiences by yielding preliminary insights into the phenomenology of objectless (...) sleep experiences. Additionally, the results show that putative instances of objectless awareness during sleep are rare. From the thematic analysis, reports of objectless sleep experiences were characterised as a state of “void”, “emptiness”, or simply an awareness of the sleeping state. Moreover, two sorts of temporal dynamics of this sort of experience were distinguished from the reports: following the dissolution of a dream scene or arising spontaneously during sleep without recall of what preceded it. Furthermore, the results provide preliminary insights into the phenomenology of certain waking experiences that some have regarded as potentially related to instances of objectless sleep awareness. Such experiences include the phenomenon of white dreaming, the feeling of knowing, upon awakening, that one had a dream but was unable to recall its content. (shrink)

These are the supplementary materials of the article "Exploration of Contentless Awareness During Sleep: An Online Survey".

Recently, the construct ‘lucid dreamless sleep’ has been proposed to explain the state of ‘clear light’ described by Tibetan Buddhist traditions, a special state of consciousness during deep sleep in which we’re told to be able to recognise the nature or essence of our mind (Padmasambhava & Gyatrul, 2008; Ponlop, 2006; Wangyal, 1998). To explain the sort of awareness experienced during this state, some authors have appealed to the sort of lucidity acquired during lucid dreaming and suggested a link between (...) both phenomena (Thompson, 2014, 2015; Windt, 2015a; Windt et al., 2016). Whilst these authors appeal to a non-conceptually mediated form of lucidity, which doesn’t consist of reflective awareness and propositional thought, the question as to whether the state of clear light should be considered a lucid state similar to lucid dreaming still arises. I argue that the concept ‘lucidity’ used to describe this sort of state is imprecise and that two theoretical notions of lucidity should be distinguished. The first one, which I call the technical notion, requires the recognition of the hallucinatory character of my current experience. The second, the broader notion, involves the seeming recognition of being directly acquainted with the phenomenal character of my experience. I spell out these two notions of lucidity and argue that only the latter could apply to the state of clear light sleep. (shrink)

This paper presents a pilot study that explores instances of objectless awareness during sleep: conscious experiences had during sleep that prima facie lack an object of awareness. This state of objectless awareness during sleep has been widely described by Indian contemplative traditions and has been characterised as a state of consciousness-as-such; while in it, there is nothing to be aware of, one is merely conscious (cf. Evans-Wentz, 1960; Fremantle, 2001; Ponlop, 2006). While this phenomenon has received diferent names in the (...) literature, such as ‘witnessing-sleep’ and ‘clear light sleep’ among others, the specifc phenomenological profle of this state has not yet been rigorously studied. This paper aims at presenting a preliminary investigation of objectless consciousness during sleep using a novel tool in qualitative research that can guide future research. Five participants experiencing objectless consciousness during sleep were interviewed following the Micro-phenomenological Interview technique (MPI; Petitmengin, 2005, 2006). All participants reported an experience they had during sleep in which there was no scenery and no dream. This period labelled as ‘No Scenery/Void’ was either preceded by the dissolution of a lucid dream or by other forms of conscious mentation. The analysis of the results advances four experiential dimensions during this state of void, namely (1) Perception of absence, (2) Self-perception, (3) Perception of emotions, and (4) Perception of awareness. While the results are primarily explorative, they refer to themes found in the literature to describe objectless sleep and point at potential avenues of research. The results from this study are taken as indications to guide future operationalisations of this phenomenon. (shrink)