Psychedelic Information Theory
Shamanism in the Age of Reason
Search Results : phosphenes
Showing 1 to 13 of 13
... to produce hallucination. Mind machines produce phosphenes within a small range of light pulse frequencies, so what if hallucinogens did something similar in the same pulse range? What if those pulses were the drug's only action, and the throbbing ...
Reviews for Psychedelic Information Theory
... solid understanding of how rod and cone vision, phosphenes, the visual information processing rate, and the brain's pattern-recognition function all come together (or come apart) to modulate entoptic (pattern overlay--"Patterns... Colors...") and e...
Seeing Stars: The Shifting Geometry of Phosphenes
...
Notes on Flicker Phosphene Form Constants
... and the form constants and properties of flicker phosphenes are generalized and based on subjective reports....
... hallucination, geometric hallucinations, or phosphenes, are one of the most commonly reported visual effects of psychedelics. Phosphenes are a sensation of light caused by excitation of the retina by mechanical or electrical means. Pressure pho...
Autohypnotic Induction of Sleep Rhythms Generates Visions of Light with Form-constant Patterns
Autohypnotic Induction of Sleep Rhythms Generates Visions of Light with Form-constant Patterns. [fig]1;0[/fig] [fig]2;0[/fig]...
... large coin at arm's length. Very large elongated phosphenes, like those seen by Brindley's second patient, have not been reported despite the number of patients, electrodes, and combinations of stimulus parameters tested. These large phosphenes may ...
TMS, phosphenes and visual mental imagery: A mini-review and a theoretical framework
... research linking visual mental imagery and phosphenes induced by TMS. We examined and contrasted conditions (and parameters) under which intensity and amplitude of TMS application at various cortical sites along the ventral and dorsal visual p...
... the electroencephalographic frequency range ('phosphenes') has been investigated in earlier work. The experiments described in this paper were undertaken to observe in one subject effects of chemical stimulation (by mescaline, psilocybin and LSD)...
Altered States: The Origin of Art in Entoptic Phenomena
... and Dowson further break these down into 'phosphenes' which can be produced by physical stimulation (such as the patterns seen when you close your eyes and apply gentle pressure to your eyelids), and 'form constants' which are produced beyond...
The Signs of All Times: Entoptic Phenomena in Upper Palaeolithic Art
... and Dowson further break these down into 'phosphenes' which can be produced by physical stimulation (such as the patterns seen when you close your eyes and apply gentle pressure to your eyelids), and 'form constants' which are produced beyond...
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...
The Control Interrupt Model of Psychedelic Action
... in visual networks it may be perceived as phosphenes, or strobing or pulsating of light intensity, possibly fast enough to produce geometric hallucinations (Fig. 1); in audio networks it may be perceived as tinnitus, ringing, humming, buzzing...
Showing 1 to 13 of 13