Search results
Results from the WOW.Com Content Network
The word "blind" (adjective and verb) is often used to signify a lack of knowledge of something. For example, a blind date is a date in which the people involved have not previously met; a blind experiment is one in which information is kept from either the experimenter or the participant to mitigate the placebo effect or observer bias.
One well-known example is the prophet Tiresias, whose blindness is ascribed to various causes. According to one story, it was a punishment for revealing the secrets of the gods; according to another, he was struck blind after accidentally witnessing Athena bathing; in a third, he was blinded by Hera after taking Zeus 's side in a dispute. [ 3 ]
The following is a list of terms, used to describe disabilities or people with disabilities, which may carry negative connotations or be offensive to people with or without disabilities. Some people consider it best to use person-first language , for example "a person with a disability" rather than "a disabled person."
The word hemeralopia comes from the Greek ημέρα hemera, "day", and αλαός alaos, "blindness". Hemera was the Greek goddess of day , and Nyx was the goddess of night. Hemeralopia has been used to describe night blindness rather than day blindness by many non-English-speaking doctors, causing confusion.
Hysterical blindness (nowadays known as conversion disorder), the appearance of neurological symptoms without a neurological cause. Inattentional blindness or perceptual blindness, failing to notice some stimulus that is in plain sight. Motion blindness, a neuropsychological disorder causing an inability to perceive motion.
For example, someone who grew up deaf and experienced vision loss later in life is likely to use a sign language (in a visually modified or tactile form). Others who grew up blind and later became deaf are more likely to use a tactile mode of spoken/written language. Methods of communication include:
These variants of visual agnosia include prosopagnosia (inability to recognize faces), pure word blindness (inability to recognize words, often called "agnosic alexia" or "pure alexia"), agnosias for colors (inability to differentiate colors), agnosias for the environment (inability to recognize landmarks or difficulty with spatial layout of an ...
The following criteria are required to classify an event as an inattentional blindness episode: 1) the observer must fail to notice a visual object or event, 2) the object or event must be fully visible, 3) observers must be able to readily identify the object if they are consciously perceiving it, [3] and 4) the event must be unexpected and the failure to see the object or event must be due ...