LSD is an ambiguous substance, said to mimic psychosis and to improve mental health in people suffering from anxiety and depression. Little is known about the neuronal correlates of altered states of consciousness induced by this substance. Limited previous studies indicated profound changes in functional connectivity of resting state networks after the administration of LSD. The current...
Chapter 3 tackles some of the ‘hard’ problems with consciousness. First, it is impossible to imagine the relationship between consciousness and the invisible physical world. Second, we find it difficult to imagine the connection between conscious experiences of brain activity and other conscious experiences. Third, there are brute regularities between consciousness and the physical world that...
Human and Machine Consciousness presents a new foundation for the scientific study of consciousness. It sets out a bold interpretation of consciousness that neutralizes the philosophical problems and explains how we can make scientific predictions about the consciousness of animals, brain-damaged patients and machines.
Consciousness is largely a mystery to man: we know next to nothing about its relationship to the physical world. In order to fathom and understand it, there are some obstacles which need to be overcome, that is, the metaphysical theories of consciousness, and the ‘hard’ problem of consciousness. Some of these obstacles cannot even be overcome. This book will endeavour to neutralize the...
The ability to integrate information in the brain is considered to be an essential property for cognition and consciousness. Integrated Information Theory (IIT) hypothesizes that the amount of integrated information ( Φ ) in the brain is related to the level of consciousness. IIT proposes that, to quantify information integration in a system as a whole, integrated information should be measured...
The term “double touch” occurs only once in the published work of Samuel Taylor Coleridge, a fact which belies the notable philosophical attention it is shown in his notebooks and letters. This paper offers a phenomenological analysis of double touch, examining the concept alongside the work of Edmund Husserl and Maurice Merleau-Ponty. This analysis frames double touch as a concept which...
Working memory (WM), an important posit in cognitive science, allows one to temporarily store and manipulate information in the service of ongoing tasks. WM has been traditionally classified as an explicit memory system-that is, as operating on and maintaining only consciously perceived information. Recently, however, several studies have questioned this assumption, purporting to provide...
According to enactivism all living systems, from single cell organisms to human beings, are ontologically endowed with some form of teleological and sense-making agency. Furthermore, enactivists maintain that: (i) there is no fixed pregiven world and as a consequence (ii) all organisms “bring forth” their own unique “worlds” through processes of sense-making. The first half of the paper takes...
The aim of this paper is to shed light on and develop what I call a phenomenological conception of experiential justification (PCEJ). According to this phenomenological conception, certain experiences gain their justificatory force from their distinctive phenomenology. Such an approach closely connects epistemology and philosophy of mind and has recently been proposed by several authors, most...
How do psychedelic drugs produce their characteristic range of acute effects in perception, emotion, cognition, and sense of self? How do these effects relate to the clinical efficacy of psychedelic-assisted therapies? Efforts to understand psychedelic phenomena date back more than a century in Western science. In this article I review theories of psychedelic drug effects and highlight key...