Manipulation of the effects of consciousness by external influence on the human brain is considered in the context of the nonlinear dynamical modeling of interaction between automatic and conscious processes.
RationaleSerotonin (5-Hydroxytryptamine, 5-HT) receptors play an important role in perception, affect regulation and attention. Pharmacological challenge with the 5-HT(2A) agonist psilocybin (PY) is useful in studying the neurobiological basis of cognition and consciousness.ObjectiveInvestigation of dose-dependent effects of PY on psycho(patho)logical and physiological parameters.MethodsEight...
Hallucinogens (psychedelics) are psychoactive substances that powerfully alter perception, mood, and a host of cognitive processes. They are considered physiologically safe and do not produce dependence or addiction. Their origin predates written history, and they were employed by early cultures in a variety of sociocultural and ritual contexts. In the 1950s, after the virtually contemporaneous...
Nature NeuroscienceJanuary 2004Angela Sirigu, Elena Daprati, Sophie Ciancia et al.
A central question in the study of human behavior is the origin of willed action. EEG recordings of surface brain activity from human subjects performing a self-initiated movement show that the subjective experience of wanting to move follows, rather than precedes, the 'readiness potential'--an electrophysiological mark of motor preparation. This raises the issue of how conscious experience of...
Survival after death of the body is arguably the most fundamental question facing sentient beings. I present a rationalistic argument for what occurs subjectively at the moment of death, using insights from quantum physics, neurology, perceptual science, psychiatry, and Gnosticism. At the point of death, three events are brought about by neurotransmitters flooding the temporal lobes. First, the...
This article examines how a shamanistic worldview is constructed and sustained in Okinawa despite the near lack of the occurrence of trance state among shamans. Observers have typically explained the strong reality that shamans ascribe to supernatural beings by referring to their altered states of consciousness. Such a psychologizing perspective, however, does violence to the distinctive ways...
Most traditional art forms around the planet are an expression of the spiritual dimension of a culture’s cosmology and the spiritual experiences of individuals. Religious art and iconography often reveal the hidden aspects of spirit as glimpsed through the filter of cultural significance. Moreover, traditional art, although often highly abstract, may actually describe sensory experiences...
Les plantes hallucinogènes sont utilisées dans les sociétés primitives depuis des siècles, mais jusqu'à maintenant leur usage se limitait à quelques individus chamanes, médecins-sorciers, etc... lors de rites religieux. Actuellement un regain d'intérêt est constaté pour les hallucinogènes naturels en rapport avec un mouvement de « retour à la nature » car la diffusion de ces substances est...
Four pairs of adult siblings served once as either the stimulus or the response person in two sessions separated by one week. While the brain of the stimulus person, who was seated in a closed chamber, was exposed successively to six different complex magnetic fields for 5 min. each quantitative monopolar electroencephalographic measurements over the frontal, temporal, parietal, and occipital...
Application of transcerebral, weak (1 microT) complex magnetic fields and mystical experiences: are they generated by field-induced dimethyltryptamine release from the pineal organ?