We challenge Seth's claim that simulations of consciousness necessarily lack the causal powers or intrinsic properties of real consciousness. We argue that Seth's position risks begging the question against computational functionalism and faces a dilemma over the reducibility of qualia. This weakens his case, leaving open the possibility that simulations could, in principle, realize consciousness.
A central challenge in consciousness research is to dissociate perception from awareness using rigorous, bias-free methods. Traditional approaches often suffer from two key limitations: the criterion biases in reporting perceptual (un)awareness, and the criterion content fallacy, where awareness measures do not capture the specific information required to perform the perceptual task. These...
We welcome Sepe et al'.s careful study of the visual capacities of the macaque in the early period that follows a lesion to primary visual cortex. Blindsight is a central phenomenon in the study of consciousness, for its existence suggests the possibility of unconscious vision, an inference that remains controversial. Here, we suggest that damage to visual cortex may produce not just less...
Abstract What is the role of consciousness in motivation? Can we be motivated by unconscious incentives, and pursue goals that we are not even aware of? In this article, we critically review extant empirical and theoretical works that support such claims and contrast them with an alternative, valence-centered account of motivation. In light of recent methodological advancements in the field of...
Abstract Fleming and Michel’s hypothesis about the origins of consciousness not only faces multiple challenges but also overlooks phenomenal experience—the very phenomenon that needs explaining. Although we are in broad agreement with the authors’ overall perspective, we highlight challenges and suggest that consciousness evolved to attribute subjective value, enabling organisms to care about...
Steady-state visual evoked potentials (SSVEPs) from frequency-tagging (FT) paradigms are widely used to investigate visual processing. Yet their association to conscious perception remains unclear. To test whether SSVEP occurs during conscious perception or without consciousness, 32 participants saw sequences of different images presented at 6 Hz (6 images per second) and containing faces every...
Although in recent years some studies have found evidence suggesting that working memory (WM) may operate on unconscious perceptual contents, decisive demonstrations of the existence of unconscious WM are lacking. In the present Registered Report, we replicate the first study on this topic by Soto et al. (Working memory without consciousness. Curr Biol 2011;21:R912-3.): a visual discrimination...
Stimuli presented outside conscious awareness can influence behavior, yet the extent to which such information supports complex decision-making remains unclear. The present study examined the limits of unconscious influence across three levels of decision complexity. Participants made decisions based on stimuli presented using sandwich masking. Stimulus presentation parameters were held...
DC. Dennett (2020,personal communication) asked: 'How do we go from doing things for reasons to having reasons for doing things?'. This question targets a fundamental shift in nature: while all organisms act in the way they do for reasons that are shaped by extrinsic evolutionary cost functions, some also act for reasons of their own, even engaging in behaviour that may be detrimental to their...
Understanding the biophysical basis of consciousness remains a substantial challenge for 21st-century science. This endeavor is becoming even more pressing in light of accelerating progress in artificial intelligence and other technologies. In this article, we provide an overview of recent developments in the scientific study of consciousness and consider possible futures for the field. We...
What is consciousness, and how can we tell who—or what—has it? Consciousness is the ability to have experiences, such as seeing, feeling, thinking, or knowing that you exist. Scientists believe it depends on the brain, but they still do not fully understand how it works. Studying consciousness is difficult because it is personal and cannot be directly measured. Researchers use tools like brain...
The scope of unconscious processing has long been, and still remains, a hotly debated issue. This is driven in part by the current diversity of methods to manipulate and measure perceptual consciousness. Here, we provide ten recommendations and nine outstanding issues about designing experimental paradigms, analyzing data, and reporting the results of studies on unconscious processing. These...
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...
Which systems/organisms are conscious? New tests for consciousness ('C-tests') are urgently needed. There is persisting uncertainty about when consciousness arises in human development, when it is lost due to neurological disorders and brain injury, and how it is distributed in nonhuman species. This need is amplified by recent and rapid developments in artificial intelligence (AI), neural...
The comparison between conscious and unconscious perception is a cornerstone of consciousness science. However, most studies reporting above-chance discrimination of unseen stimuli do not control for criterion biases when assessing awareness. We tested whether observers can discriminate subjectively invisible offsets of Vernier stimuli when visibility is probed using a bias-free task. To reduce...
We propose a new approach to consciousness science that instead of comparing complex theoretical positions deconstructs existing theories, takes their central assumptions while disregarding their auxiliary hypotheses, and focuses its investigations on the main constructs that these central assumptions rely on (like global workspace, recurrent processing, metarepresentation). Studying how these...
In conclusion, this collection addresses many fundamental issues that have emerged over the last few years in the quest to understand consciousness, including problems related to self-awareness and the implications of recent neuropsychological studies. Even if these articles open up more scientific questions than they answer, they can contribute to the debate around the methodological...
Based on the literature on human consciousness, we suggest that to demonstrate sentience in a system, one needs to demonstrate both conscious and unconscious processing in the system. Major theories of consciousness require the existence of both conscious and unconscious processes. Contrasting effects of conscious and unconscious processes have been successfully used in human studies and have...
'Why would we do anything at all if the doing was not doing something to us?' In other words: What is consciousness good for? Here, reversing classical views, according to many of which subjective experience is a mere epiphenomenon that affords no functional advantage, we propose that subject-level experience-'What it feels like'-is endowed with intrinsic value, and it is precisely the value...
One way to understand a system is to explore how its behaviour degrades when it is overloaded. This approach can be applied to understanding conscious perception by presenting stimuli in rapid succession in the 'same' perceptual event/moment. In previous work, we have identified a striking dissociation during the perceptual moment, between what is encoded into working memory [Lag-1 sparing in...
Behavior Research MethodsSeptember 28, 2021D. M. L. de Boer, Farhang Namdar, Martin Lambers et al.5 citations
Inspired by recent technological advances in the gaming industry, we used capture cards to create and LIVE-stream high quality 3D-images. With this novel technique, we developed a real-life stereoscopic 3D full-body illusion paradigm (3D projection). Unlike previous versions of the full-body illusion that rely upon unwieldy head-mounted displays, this paradigm enables the unobstructed...
Why would we do anything at all if the doing was not doing something to us? In other words: What is consciousness good for? Here, reversing classical views, according to many of which subjective experience is a mere epiphenomenon that affords no functional advantage, we propose that the core function of consciousness is precisely to enable subject-level experience. “What it feels like” is...
Scientific ReportsNovember 5, 2020D M L De Boer, Patrick Johnston, Graham Kerr et al.
Recent theories suggest that self-consciousness, in its most elementary form, is functionally disconnected from the phenomenal body. Patients with psychosis frequently misattribute their thoughts and actions to external sources; and in certain out-of-body experiences, lucid states, and dreams body-ownership is absent but self-identification is preserved. To explain these unusual experiences, we...
PsyArXivAugust 19, 2020Debbie Margaretha Louisa De Boer, Patrick Johnston, Graham Kerr et al.
preprint
Recent theories suggest that self-consciousness, in its most elementary form, is separate from the own body. Patients with psychosis frequently misattribute their thoughts and actions to external sources; and in certain out-of-body experiences, lucid states, and dreams body-ownership is absent but self-identification is preserved. We hypothesized that self-identification depends on inferring...
Consciousness remains a formidable challenge. Different theories of consciousness have proposed vastly different mechanisms to account for phenomenal experience. Here, appealing to aspects of global workspace theory, higher-order theories, social theories, and predictive processing, we introduce a novel framework: the self-organizing metarerpresentational account (SOMA), in which consciousness...