The effect is also optimal when the thickness of the bars in the induction stimulus matches that of those in the test stimulus (i.e., the effect is tuned, albeit broadly, to spatial frequency). Like the classic effect, the anti-McCollough effect (AME) is long lasting. It then requires a test stimulus on which the aftereffect can be seen. [12], "Color Adaptation of Edge-Detectors in the Human Visual System", Journal of Experimental Psychology: Human Perception and Performance, "Do McCollough effects provide evidence for global pattern processing? Nevertheless, if a small region of the retina is exposed to the induction stimuli, and the test contours run through this region, the effect spreads along those test contours. After several minutes, the subject should look back to the test image; the gratings should appear tinted by the opposite color to that of the induction gratings (i.e., horizontal should appear greenish and vertical pinkish). People noticed later when reading text of the same spatial frequency, such as in a book, that it looked pink. The following report has been demonstrated to carry an Aleph Meta level memetic cognitothreat that cannot be countered by current Foundation technology. Use the term 'memetic hazard'. Watch headings for an "edit" link when available. Sex and religion are major areas to which memetics can be use Memetic hazards are extreme bad memes - or collections of bad memes. It depends on retinal orientation (tilting the head to the side by 45 degrees makes the colors in the above example disappear; tilting the head by 90 degrees makes the colors reappear such that the gravitationally vertical grating now looks green). A set of horizontal and vertical induction grids and a separate set of opposing diagonal induction grids will produce two distinct afterimages when a black and white grid is held normally, and at 45 degrees. It activates when it is perceived, when its existence is registered by the mind. The effect is specific to the region of the retina that is exposed to the induction stimuli. Real Memetic Hazard. Some may actively benefit in some way from propagating them. Memetic hazards are not necessarily harmful to all. See pages that link to and include this page. It is an aftereffect requiring a period of induction to produce it. Authorized personnel who do not wish to view this file should close their browsers at this time and submit to a superior for amnestic administration. [8] This effect may be induced by alternating pairings of gratings in parallel alignment, one achromatic (black and white) and the other black and a single color (say black and red). Unauthorized personnel viewing this file will be terminated. According to him, the classic effect with induction from two different orientations and colors simply makes the illusory colors more noticeable via contrast. Lethal information. Memetic hazards are a type of information hazard. tips time! A variety of similar aftereffects have been discovered not only between pattern and color contingencies, but between movement/color, spatial frequency/color and other relationships. (If you're reading this comment and don't actually know what these are, do yourself a favor and don't look them up. View wiki source for this page without editing. Wikidot.com Terms of Service - what you can, what you should not etc. Goodbye. They are sources of culturally-induced harm. As well, inducing the effect with one eye leads to no effect being seen with the other eye. [5][6] Explanations appear to fall into three camps. For example, induction with only a red horizontal grating makes a black-and-white horizontal test grating appear greenish whereas a black-and-white vertical test grating appears colorless (although there is some argument about that). They are sources of culturally-induced harm. Potential Harms from Knowledge. One academic source that covers memetic hazards is Nick Bostrom's Information Hazards: A Typology of. McCollough indicated color adaptation of edge sensitive neurons in lower, A third explanation points to the contribution of, This page was last edited on 15 September 2020, at 19:55. The following report has been demonstrated to carry an Aleph Meta level memetic cognitothreat that cannot be countered by current Foundation technology. The McCollough-effect colors are less saturated than the induction colors. The McCollough effect is a phenomenon of human visual perception in which colorless gratings appear colored contingent on the orientation of the gratings. I don't have much to add to Aetheric Research's description of a "memetic hazard" - so I'll just quote it: Propaganda represents a memetic hazard on a national scale. One image should show one orientation of grating (here horizontal) with a colored background (red) and the other should show the other orientation of grating (here vertical) with a different, preferably oppositely-colored background (green). Each image should be gazed at by the subject for several seconds at a time, and the two images should be gazed at for a total of several minutes for the effect to become visible. [4], McCollough's paper has sparked hundreds of other scientific papers. [1][4][7], It is worth noting that these theories are not targeted toward the anti-McCollough effect.[8]. This effect is distinct from the classical effect in three important regards: the perceived color of the aftereffect is the same as the inducer's color, the perceived color of the aftereffect is weaker than the classical effect, and the aftereffect shows complete interocular transfer. It is essentially a piece of information designed as a killing tool. I recommend the publisher use a neutral background, like myself, I like to use a dark gray. Want to be specific? Richard Dawkins: The Making of a Scientist, Fidelity, fecundity and longevity - in 3D. In 2006, the explanation of the effect was still the subject of debate, although there was a consensus in favor of McCollough's original explanation. The McCollough effect is a phenomenon of human visual perception in which colorless gratings appear colored contingent on the orientation of the gratings. Also, a horizontal grating of the same spatial frequency as the horizontal lines of the induction text (such as the horizontal stripes on the letters "IBM" on the envelope for early floppy disks) looked pink. Check out how this page has evolved in the past. Once upon a time, there was no snake, there was no scorpion,There was no hyena, there was no lion,There was no wild dog, no wolf,There was no fear, no terror,Man had no rival.In those days, the land Shubur-Hamazi,Harmony-tongued Sumer, the great land of the me of princeship,Uri, the land having all that is appropriate,The land Martu, resting in security,The whole universe, the people well cared for,To Enlil in one tongue gave speech.Then the lord defiant, the prince defiant, the king defiant,Enki, the lord of abundance, whose commands are trustworthy,The lord of wisdom, who scans the land,The leader of the gods,The lord of Eridu, endowed with wisdom,Changed the speech in their mouths, put contention into it,Into the speech of man that had been one. Test stimulus might show adjacent patches of black-and-white vertical and horizontal gratings ( as above ), a effect. Induction colors course, most memetic hazards are extreme bad memes they stuck. 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