Results 1 to 10 of about 22,287 (256)

Johann Joseph Oppel (1855) on Geometrical–Optical Illusions: A Translation and Commentary [PDF]

open access: yesi-Perception, 2017
The term geometrical–optical illusions was coined by Johann Joseph Oppel (1815–1894) in 1855 in order to distinguish spatial distortions of size and orientation from the broader illusions of the senses.
Nicholas J. Wade   +3 more
doaj   +5 more sources

Why Does Rubin's Vase Differ Radically From Optical Illusions? Framing Effects Contra Cognitive Illusions [PDF]

open access: yesFrontiers in Psychology, 2021
Many researchers use the term “context” loosely to denote diverse kinds of reference points. The issue is not about terminology but rather about the common conflation of one kind of reference points, such as rules of perception, which is responsible for ...
Elias L. Khalil
doaj   +2 more sources

Deciding on Optical Illusions: Reduced Alpha Power in Body Dysmorphic Disorder [PDF]

open access: yesBrain Sciences, 2022
Background: Body dysmorphic disorder (BDD) is a psychiatric disorder characterized by excessive preoccupation with imagined defects in appearance. Optical illusions induce illusory effects that distort the presented stimulus, thus leading to ambiguous ...
Anastasios E. Giannopoulos   +6 more
doaj   +2 more sources

Involvement of the Extrageniculate System in the Perception of Optical Illusions: A Functional Magnetic Resonance Imaging Study. [PDF]

open access: yesPLoS ONE, 2015
Research on the neural processing of optical illusions can provide clues for understanding the neural mechanisms underlying visual perception. Previous studies have shown that some visual areas contribute to the perception of optical illusions such as ...
Ken-Ichi Tabei   +6 more
doaj   +2 more sources

Impossible Movement Illusions [PDF]

open access: yesi-Perception, 2018
Past research has used the phi phenomenon to create the illusion of one object moving through another. This article presents three optical illusions that are conceptually similar, yet little known within academic psychology.
Richard Wiseman, Will Houstoun
doaj   +3 more sources

Illusions of causality: How they bias our everyday thinking and how they could be reduced [PDF]

open access: yesFrontiers in Psychology, 2015
Illusions of causality occur when people develop the belief that there is a causal connection between two events that are actually unrelated. Such illusions have been proposed to underlie pseudoscience and superstitious thinking, sometimes leading to ...
Helena eMatute   +5 more
doaj   +2 more sources

Perception of optical illusions in ungulates: insights from goats, sheep, guanacos and llamas [PDF]

open access: yesAnimal Cognition
Optical illusions have long been used in behavioural studies to investigate the perceptual mechanisms underlying vision in animals. So far, three studies have focused on ungulates, providing evidence that they may be susceptible to some optical illusions,
Caterina Berardo   +6 more
doaj   +2 more sources

Grand Illusions: Large-Scale Optical Toys and Contemporary Scientific Spectacle [PDF]

open access: yesTeorie vědy, 2013
GRAND ILLUSIONS: LARGE-SCALE OPTICAL TOYS AND CONTEMPORARY SCIENTIFIC SPECTACLE Abstract: The zoetrope, a nineteenth- century optical toy that showcases illu- sions of motion, has enjoyed an active "afterlife" in the 20th and 21st centuries.
Meredith A. Bak
doaj   +3 more sources

Psychophysical measurement of perceived motion flow of naturalistic scenes [PDF]

open access: yesiScience, 2023
Summary: The neural and computational mechanisms underlying visual motion perception have been extensively investigated over several decades, but little attempt has been made to measure and analyze, how human observers perceive the map of motion vectors,
Yung-Hao Yang   +3 more
doaj   +2 more sources

A psychophysically-tuned computational model of human primary visual cortex produces geometric optical illusions [PDF]

open access: yesCurrent Research in Neurobiology
Geometric optical illusions (GOIs) are mismatches between physical stimuli and perception. GOIs provide an access point to study the interplay between sensation and perception, Yet, there is relatively scant quantitative investigation of the extent to ...
Chrysa Retsa   +5 more
doaj   +2 more sources

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