Psychedelic Information Theory
Shamanism in the Age of Reason
Search Results : brain
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... that a master pacemaker in the mammalian brain, the SCN (suprachiasmatic nuclei), entrains the periphery. Such hierarchical relationships are not the only ones possible: two or more oscillators may couple in order to assume the same period w...
From drugs to deprivation: a Bayesian framework for understanding models of psychosis
... formulations of information processing in the brain provide a framework that maps onto neural circuitry and gives us a context within which we can relate the symptoms of psychosis to their underlying causes. This helps us to understand the simila...
Does time dilate during a threatening situation?
... of this phenomenon implicates the involvement of brain structures which are thought to be required for cognitive control and subjective awareness. The apparent prolonged duration of a looming or deviant stimulus is referred to as the time dilatio...
... of G-protein coupling, was measured in the rat brain by autoradiography. After chronic LSD, a significant reduction in LSD-stimulated [35S]GTPgammaS binding was observed in the medial prefrontal cortex and anterior cingulate cortex. Furthermore, c...
... LSD, or psychedelic drugs, actually affect the brain? What is going on there? CRICK: Well, I don't have a detailed knowledge, no, I don't, and I'm not sure that anybody else really knows. They have a rough idea. MISHLOVE: We know that obviou...
Effects of LSD on the responses of single units in cat visual cortex
The effects of intravenous doses (200 mgrg) of LSD on the activity of single neurones in the primary visual cortex have been studied in cats anaesthetized with urethane. Cells were stimulated with a bright bar of light moved over the receptive field,...
Notes on Regulation of Consciousness
... is a function of aminergic modulation in the forebrain, but total homeostatic regulation of brain states is generally considered to be a function of the hypothalamus. From WikiPedia: "The hypothalamus co-ordinates many hormonal and behavioural circa...
Notes on Sensory Binding and Coherence
... the relative cooperation between separated brain areas based on their wave properties, coherence is a term used to indicate strong signal strength and cooperation between areas. Areas that are high in coherence may act like coupled oscillators...
Synaptic Self: How Our brain Become Who We Are Annotation: See LeDoux's discussion of associative synaptic bonding, emotional imprinting, and memory....
The Emotional brain: The Mysterious Underpinnings of Emotional Life. Annotation: See LeDoux's discussion of the amygdala and mid-brain's role in salient recognition, as well as discussions of the PFC's rational override of hasty recognition mistak...
... a phenomenon that occurs widely throughout the brain at many phyletic levels and appears to represent a basic neural mechanism by which an organism integrates complex environmental stimuli. In the present study, neurons in the superior colliculus ...
Notes on Functions of Consciousness
... oversimplification of the functions of the human brain, but they are an ample enough description for modeling human consciousness in any environment. ...
The Phase of Ongoing EEG Oscillations Predicts Visual Perception
... are ubiquitous in electrical recordings of brain activity. While the amplitude of ongoing oscillatory activity is known to correlate with various aspects of perception, the influence of oscillatory phase on perception remains unknown. In parti...
... is received as sense data moving towards the brain from the peripheral nervous system. Sensation does not become actual perception until it is routed up into higher cortical areas for processing.3 Humans also perceive internal thoughts and feeli...
Theta and gamma coherence along the septotemporal axis of the hippocampus
... rhythms synchronize neurons within and across brain structures. Both rhythms are widespread within the hippocampus during exploratory behavior and rapid-eye-movement (REM) sleep. How synchronous are these rhythms throughout the hippocampus? The p...
... time: The psychedelic interacts with a human brain, and through psychedelic interaction with the neural network a piece of artwork spontaneously organizes in the mind of the artisan, emerging over time through craft into the physical world. Unli...
Psychedelic Information Theory
... information processing capacities of the human brain are finite, and thus there is an upper limit to the amount of information that can be generated within a single psychedelic session before the brain begins to down-regulate in an attempt to retu...
The Dream Drugstore: Chemically Altered States of Consciousness
... in memory the serotonergically modulated forebrain must be online and queuing information into the medial temporal lobe for storage. If the brain is hallucinating that means memory is modulated by acetylcholine for output, not input, and memory ...
What is Psychedelic Information Theory?
... the creation of information in the human brain requires formal definitions for perception, consciousness, and information, and as such PIT is also a work of systems theory, which posits that the potential output of any system can be fully de...
Scientists explain inception of perception in the brain
... indeed all of human perception – begins in the brain’s center. That’s where sensory information passes from the thalamus to the neocortex for processing. That critical transfer is a bit of a brain science mystery: Instead of reactin...
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