Showing 40 to 52 of 52

The continuous Wagon Wheel Illusion is object-based

... Here we show that the sampling is in fact object-based: we use a rotating ring stimulus split in two halves. When the two halves move in opposite directions, appearing to belong to separate objects, perceptual reversals occur in either half a...

What is Consciousness?

Since this text is about the manipulation of consciousness it is beneficial to have working definition for this term. Consciousness is defined here as a stable information processing system with specific functions and emergent operating properties, a...

The Dream Drugstore: Chemically Altered States of Consciousness

Chapter 1: Hobson's text is included here because of his discussion of the serotonin/acetylcholine modulatory gate that switches between waking and dreaming. This model is presented in the AIM state description of consciousness. Chapter 4: In orde...

What is Psychedelic Information Theory?

Psychedelic Information Theory (PIT) is the study of nonlinear information creation in the human imagination, particularly in states of dreaming, psychosis, and hallucination. PIT seeks to model the functional output of human perception in order to e...

Chaotic fingerprints and space-time labyrinths

Video Feedback is a great example of real-time evolving self-organising systems near the edge of chaos. With a relatively simple camera-monitor/TV set-up you can produce a vast spectrum of time-based fractal species, many of which bare great similari...

Orientation and Direction Selectivity of Neurons in V1 of Alert Monkeys: Functional Relationships and Laminar Distributions

We studied orientation selectivity in V1 of alert monkeys and its relationship to other physiological parameters and to anatomical organization. Single neurons were stimulated with drifting bars or with sinusoidal gratings while compensating for eye ...

What is Shamanism?

The origins of shamanism are rooted in spirituality and myth, but the power of shamanism is entirely real. It is the goal of this text to explore rational limits and applications of shamanic power beyond the paradigms of mythology and faith healing. ...

Using psilocybin to investigate the relationship between attention, working memory and the serotonin 5-HT1A and 5-HT2A receptors

Increasing evidence suggests a link between attention, working memory, serotonin (5-HT) and prefrontal cortex activity. In an attempt to tease out the relationship between these elements, this study tested the effects of the hallucinogenic 5-HT1A/2A ...

What Geometric Visual Hallucinations Tell Us about the Visual Cortex

Many observers see geometric visual hallucinations after taking hallucinogens such as LSD, cannabis, mescaline or psilocybin; on viewing bright ickering lights; on waking up or falling asleep; in “near-death” experiences; and in many other synd...

Timewarp: How your brain creates the fourth dimension

THE MAN dangles on a cable hanging from an eight-storey-high tower. Suspended in a harness with his back to the ground, he sees only the face of the man above, who controls the winch that is lifting him to the top of the tower like a bundle of cargo....

Information Processing in Human Body

We can think about the human body as a self-organized collective of clones of a single fertilized egg cell. Each cell of the human body is an elaborate bio-chemical computer. It has its own power management and information processing structures. It c...

The Control Interrupt Model of Psychedelic Action

The brain is an information processing organ that uses top-down signal modulation to control the flow of bottom-up sensory input. Feedback modulation of incoming signal is an example of self-stabilizing control in a signal processing system. Using th...

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