Objective: The clinical hallmark of schizophrenia is psychosis. The objective of this overview is to link the neurobiology (brain), the phenomenological experience (mind), and pharmacological aspects of psychosis-in-schizophrenia into a unitary framework. Method: Current ideas regarding the neurobiology and phenomenology of psychosis and schizophrenia, the role of dopamine, and the mechanism of...
Consciousness is what makes the mind-body problem really intractable (Nagel1980, p. 150). My reading of the situation is that our inability to come up with an intelligible conception of the relation between mind and body is a sign of the inadequacy of our present concepts, and that some development is needed (Nagel1998, p. 338). Mind itself is a spatiotemporal pattern that molds the metastable...
This paper reviews in detail Francisco Varela's work on subjectivity and consciousness in the biological sciences. His original approach to this "hard problem" presents a subjectivity that is radically intertwined with its biological and physical roots. It must be understood within the framework of his theory of a concrete, embodied dynamics, grounded in his general theory of autonomous...
Abstract An overview of transpersonal psychology is provided with specific focus on a number of its central themes (nonduality, intrinsic health, self‐transcendence, and inclusivity) and practices (meditation, ritual, and inquiry). The relationship of transpersonal psychology to both mainstream psychology and spiritual wisdom traditions is discussed. The field's implications for diversity...
Despite 40 years of dialogue, debate still continues over whether psychedelics are capable of inducing genuine mystical experiences. This paper first reviews the arguments against this possibility and shows that all of them contain shortcomings. One reason the debate still continues is that there has been no adequate theory of mystical states and their relationship to the factors which produce...
Abstract Our charting of the phenomenology of the Ayahuasca experience is now complete. First- and second-order, dynamical, and contextual questions have been examined. I turn now to the theoretical cognitive-psychological level Taking a broad, unified perspective, I shall attempt to make sense of the special state of consciousness that Ayahuasca induces. What happens to the mind under the...
Abstract Having specified the various contextual factors and variables that may contribute to the generation of visions, let me attempt a definition of the major cognitive parameters that seem to be affected by Ayahuasca. In defining these parameters} in effect, I am attempting an answer to the major psychological question-what does Ayahuasca do to the human cognitive system? Theoretically,...
Abstract In this chapter I continue with the ‘How?’ question and consider a number of patterns which, to my mind, are important determinants of the way Ayahuasca visualizations develop. Following my general (that is, not specific to my study of Ayahuasca) radical phenomenological approach to cognition, unlike most investigations in contemporary cognitive science my analysis does not deal with...
Abstract This is a pioneering cognitive psychological study of Ayahuasca, a plant-based Amazonian psychotropic brew. Benny Shanon presents a comprehensive charting of the various facets of the special state of mind induced by Ayahuasca, and analyzes them from a cognitive psychological perspective. He also presents some philosophical reflections. Empirically, the research presented in this book...
Long-term meditating subjects report that transcendental experiences (TE), which first occurred during their Transcendental Meditation (TM) practice, now subjectively co-exist with waking and sleeping states. To investigate neurophysiological correlates of this integrated state, we recorded EEG in these subjects and in two comparison groups during simple and choice contingent negative variation...