The successful execution of time-based prospective memory (TBPM) tasks demands self-initiation attentional resources. Mindfulness meditation can enhance attention, which may promote TBPM performance. This study investigates whether mindfulness meditation can facilitate TBPM via the improvement of attentional resources and whether such facilitation is modulated by time-monitoring conditions. The...
Psychedelic substances and meditation can elicit personally meaningful experiences that support well-being, yet their relative and combined contributions remain unclear. Meditation typically produces gradual improvements through sustained practice, whereas psychedelics may induce acute shifts. To examine these dynamics, we re-analysed data from two cross-sectional online surveys using multiple...
Hallucination research is a fast‑growing, inherently interdisciplinary field bridging psychology, neuroscience, psychiatry, and philosophy. This article maps out key conceptual and methodological issues underlying the study of hallucinations. We begin by unpacking core theoretical issues - how hallucinations differ from other perceptual alterations, whether they form a single construct or...
Dream lucidity, the ability to recognize and reflect on one's dream state, has been linked to heightened memory monitoring. Although individuals with high trait lucidity often rate imagined and perceived events as similarly vivid, they nonetheless perform better in distinguishing memory sources. This study examined whether this advantage reflects greater subjective specificity, the retrieval of...
Until recently, mental imagery has largely been regarded as an exclusively conscious phenomenon. However, recent empirical results suggest that mental imagery can also occur unconsciously. People who report having no experiences of mental imagery often perform similar to controls on behavioural tasks thought to require imagery. A surprising number of them also display significant levels of...
• Building-block approaches facilitate the assessment, integration, and unification of theories of consciousness. • Descriptive building-block approaches examine key constructs of existing theories. • Normative building-block approaches emphasise foundational constructs of a mature theory of consciousness. • Two foundational building blocks, given their roles in leading theories, are attention...
Both psychedelic substances and meditation have been proposed to facilitate personally meaningful and transformative experiences, with insights playing a central role. However, previous research has mainly relied on questionnaires, limiting the range of insights that can be identified. In this study, we recruited participants who provided narrative reports of insights in personally meaningful...
According to a widely shared belief, an explanation of phenomenal experience in terms of neural mechanisms is impossible in principle. The reason for this "Explanatory Gap" is supposed to be a basic incompatibility between phenomenal and neuroscientific knowledge: while the latter is framed in terms of functional relationships, it is impossible to capture phenomenal experience in functional...
Studies on the electrophysiological and phenomenological aspects of dream experiences provide insight on consciousness during sleep. Whole night polysomnography (PSG) studies were conducted among 29 healthy young participants with high dream recall abilities. Dreams reports were collected during the second night by multiple awakening protocol. On the third night, participants were presented...
Empirical evidence has demonstrated the beneficial effects of mindfulness in the enhancement of positive psychology factors and cognitive performances, as well as in the remission of psychological distress. Researchers have proposed mechanisms for mindfulness' comprehensive effects, such as through mental flexibility, and examined indices of neurophysiological changes. This study provided a new...
To many influential dream researchers, dreaming consciousness is not of the same kind as waking. In its most radical and paradoxical form, this theoretical stance consists in maintaining that dream is a case of conscious experience lacking cognitive access. In a more moderate and common form, dreamers have cognitive access to their oneiric experience but lack any executive function: they have...
Phenomenology of mental imagery can reveal the structure of underlying mental representations, yet progress has been limited because of its private nature. Through a phenomenology-recreation task we elucidate the dynamics of mental imagery. Specifically, the temporal grain, speed of object manipulation, smoothness of contents unfolding, and temporal extent of stability of imagined contents. To...
The term "afterglow" originally described the heightened mood and relaxation following psychedelics and later extended to other altered states. Despite anecdotal reports, little research has explored this effect, especially in Floatation-REST (Reduced Environmental Stimulation Technique). In this method, individuals float in thermoneutral, supersaturated salt water in a dark, quiet tank. Using...
A recent discovery documented robust and reliable individual differences in how quickly people become aware of non-conscious visual stimuli (Sklar, Goldstein, et al., 2021). Given the seemingly large role that conscious experiences play in our lives, this trait is likely to be associated with later cognitive, emotional, and motivational processes. Here we examine the possible implications of...
Thanks to the wealth of studies on mind-wandering, the stream of thought has now become, again, the focus of mainstream investigations in cognitive psychology. Yet, how one should describe and measure the stream of thought is still very much left undecided. Here, we approach the problem through the notion of mental states. Based on conceptual analysis and previous empirical data, we identify...
Asking participants to Think Aloud is a common method for studying conscious experience, but it remains unclear whether this approach alters thought qualities-such as meta-awareness, rate of topic shifts, or the content of thoughts in task-absent conditions. To investigate this, we conducted two studies comparing thinking aloud to thinking silently. In Study 1, 111 participants alternated...
Psychedelic drugs offer valuable insights into consciousness, but disentangling their causal effects on perceptual and high-level cognition is nontrivial. Technological advances in virtual reality (VR) and machine learning have enabled the immersive simulation of visual hallucinations. However, comprehensive experimental data on how these simulated hallucinations affects high-level human...
Contrary to the leading theories of consciousness on offer, it is a fruitful working hypothesis that conscious experiences facilitate a variety of functional capacities that are distinct to particular psychological tasks, individuals, and species (i.e., functional pluralism). In this paper, I illustrate this novel methodological point by identifying some of the functional contributions that...
Research on consciousness typically presents stimuli and records the responses that follow, to infer the intervening processes. Yet, VR allows ecological validity by giving the user freedom to continuously control their sensory input across three spatial dimensions via head and eye movement. We designed a virtual world in which the angle of view relates to the information complexity of the...
Contemporary consciousness research has given rise to numerous theories in both the philosophical and neuroscientific domains (such as higher-order theory and global neuronal workspace), raising the question as to how well each is supported. This article develops a relatively novel method for determining this, which is to use evidence, not just from a theory's own domain, but also from its...
Temporal attention is the ability to prioritize information based on timing. While conscious perception of temporally structured information is known to generate temporal attention, whether it occurs unconsciously remains uncertain. This study used a temporal cueing paradigm with masking techniques to explore the differences between conscious and unconscious temporal attention mechanisms....
Epistemological and ontological conceptions of information are contrasted. The former are based on acts of decoding of extrinsic inputs that result in a decoder becoming informed. The latter are based on intrinsic states or state changes of the system independent of any external factors such as inputs to the system. Ontological conceptions of information, such as those that underlie integrated...
The ability to realize that you're dreaming - lucid dreaming - has value for personal goals and for consciousness research. One route to lucid dreaming is to first undergo pre-sleep training with sensory cues and then receive those cues during REM sleep. This method, Targeted Lucidity Reactivation (TLR), does not demand extensive personal effort but generally requires concurrent polysomnography...
Despite our feeling of control over decisions, our ability to consciously access choices before execution remains debated. Recent research reveals prospective access to intention to act, allowing potential vetoes of impending decisions. However, whether the content of impending decision can be accessed remain debated. Here we track neural signals during participants' early deliberation in free...
Cognitive scientists differentiate the "minimal self" - subjective experiences of agency and ownership in our sensorimotor interactions with the world - from declarative beliefs about the self that are sustained over time. However, it remains an open question how individual sensory experiences of agency are integrated into the belief ofbeing an agent.We administered a sensorimotor task to...