(Medical Xpress) -- Psychedelic substances have long been used for healing, ceremonial, or mind-altering subjective experiences due to compounds that, when ingested or inhaled, generate hallucinations, perceptual distortions, ...
Imagine if every time you saw a face, it appeared distorted. Well, for those who have a very rare condition known as prosopometamorphopsia (PMO), which causes facial features to appear distorted, that is reality.
Mar 21, 2024
1
146
A recent study by academics at Royal Holloway, published in Current Biology, shows how our heartbeats can lead to distortions in our perception of time.
Mar 13, 2023
0
600
The chances of a commercial airliner crashing are vanishingly small—and yet many people are uncomfortable flying. Vaccination for many common childhood diseases entail almost no risk—but parents still worry. Human perception ...
Aug 25, 2020
0
336
Imagine if every time you looked at a face, one side of the face always appeared distorted as if it were melting, resembling a painting by Salvador Dalí. This is the case for people who have a rare condition known as hemi-prosopometamophosia ...
Aug 17, 2020
0
159
Researchers at Columbia University Irving Medical Center (CUIMC) and New York State Psychiatric Institute (NYSPI) found that people with schizophrenia who experience auditory hallucinations tend to hear what they expect, ...
Feb 16, 2018
0
660
(Medical Xpress)—Researchers from the University of Bath have found that people who are congenitally blind have more accurate memories than those who are sighted.
Apr 29, 2013
1
0
(Medical Xpress) -- Researchers at the University of Sydney have thrown new light on the tricks the brain plays as it struggles to make sense of the visual and other sensory signals it constantly receives.
Apr 24, 2012
0
0
Pay attention! It's a universal warning, which implies that keeping close watch helps us perceive the world more accurately. But a new study by Yale University cognitive psychologists Brandon Liverence and Brian Scholl finds ...
Sep 7, 2011
5
0
According to an article in ARRS' American Journal of Roentgenology (AJR), imaging surveillance is a management alternative for architectural distortion on digital breast tomosynthesis (DBT) yielding radial scar without atypia ...
Feb 2, 2022
0
2
A distortion is the alteration of the original shape (or other characteristic) of an object, image, sound, waveform or other form of information or representation. Distortion is usually unwanted, and often many methods are employed to minimize it in practice. In some fields, however, distortion may be desirable; such is the case with electric guitar distortion.
The addition of noise or other extraneous signals (hum, interference) is not considered to be distortion, though the effects of quantization distortion are sometimes considered noise. A quality measure that explicitly reflects both the noise and the distortion is the Signal-to-noise-and-distortion (SINAD) ratio.
This text uses material from Wikipedia, licensed under CC BY-SA
