Psychedelic Information Theory
Shamanism in the Age of Reason
Search Results : processing
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TMS, phosphenes and visual mental imagery: A mini-review and a theoretical framework
... content at other levels in the stream of visual processing and in other parts of the brain....
... and learning), and neocortex (sensory and logic processing). Neuromodulators synchronize the neural response to incoming stimulus and keep local competing brain circuits functioning smoothly and in unison. These neuromodulators produce a one-way bo...
From drugs to deprivation: a Bayesian framework for understanding models of psychosis
... current Bayesian 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 und...
Does time dilate during a threatening situation?
... action. They are also associated with the processing of self-referential information. The researchers observed a strong time dilation effect in the looming, but not the receding, condition. They suggest that it is the occurance of a loomin...
Notes on Sensory Binding and Coherence
... of parallel circuits engaged in synchronized processing tasks....
Pre-semantically defined temporal windows for cognitive processing
... that are thought to be essential for cognitive processing. One such mechanism operates with periods of oscillations in the range of some tens of milliseconds, and is used for complexity reduction of temporally and spatially distributed neuronal ac...
The continuous Wagon Wheel Illusion is object-based
The occurrence of perceived reversed motion while observers view a periodic, continuously moving stimulus (the “continuous Wagon Wheel Illusion”) has been taken as evidence that some aspects of motion perception rely on discrete sampling ...
... is defined here as a stable information processing system with specific functions and emergent operating properties, all of which are necessary to maintain system stability.1 The minimum specific functions for any conscious system are: 1) p...
Gamma coherence and conscious perception
... independent neural assemblies and thus integrate processing across distributed neuronal networks to achieve a unified conscious experience. Prior studies suggest that gamma activity may play a role in perceptual mechanisms, but design limitations ra...
Psychedelic Information Theory
... generation takes energy, and the 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 ...
What is Psychedelic Information Theory?
... models the stability and complexity of signal processing in dynamical systems. By applying control theory and systems theory to altered states of consciousness PIT is a formal analysis of the nonlinear dynamics of hallucination and expanded state...
Scientists explain inception of perception in the brain
... passes from the thalamus to the neocortex for processing. That critical transfer is a bit of a brain science mystery: Instead of reacting to information from the thalamus with a burst of excitatory chatter, most cortical cells are quickly and ...
Frequency of gamma oscillations routes flow of information in the hippocampus
... link distributed cell assemblies that are processing related information1, 2, a function that is probably important for network processes such as perception1, 2, 3, attentional selection4 and memory5, 6. This 'binding' mechanism requires that...
... selective cells at an early stage of cortical processing. We suggest that these results reflect interactions between excitatory and inhibitory mechanisms specific to each sublamina. Regions with less inhibition have higher spontaneous activity, l...
Recurrent Excitation in Neocortical Circuits
... However, most models of cortical development and processing do not reflect the anatomy and physiology of feedback excitation and are restricted to serial feedforward excitation. This report describes how populations of neurons in cat visual cortex c...
Cortical Region Interactions and the Functional Role of Apical Dendrites
... dendrites can contribute to the information-processing capacities of single neurons and, in particular, how information from different cortical regions could have disparate effects on neural activity and learning....
Presynaptic regulation of recurrent excitation by D1 receptors in prefrontal circuits
... operation critical for “online” processing of information (1, 2). Prefrontal neurons exhibit persistent neuronal firing throughout the delay interval intervening between a stimulus and a memory-guided response. Understanding the cel...
Timewarp: How your brain creates the fourth dimension
... may feed into blocks of information in a higher processing stream. He calls these the "building blocks of consciousness" and reckons they underlie our perception of time (Philosophical Transactions of the Royal Society B, vol 364, p 1887). It's ...
Effects of psilocybin on time perception and temporal control of behaviour in humans
...
Information Processing in Human Body
... It has its own power management and information processing structures. It communicates with its neighbors and the environment. Each cell is an individual organism. Under certain conditions it may live outside of the collective. Most cells have a co...
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