Blindsight
is the ability of people who are cortically blind
What is true blindsight?
Blindsight is a
phenomenon in which patients with damage in the primary visual cortex of the brain can tell where an object is although they claim they cannot see it
. Scientists now provide compelling evidence that blindsight occurs because visual information is conveyed bypassing the primary visual cortex.
What is blindsight in psychology quizlet?
blindsight.
ability to detect and identify visual stimuli by forced-choice guessing when stimuli are in blind parts of visual
field. – detection without conscious awareness.
What is the focusing of conscious awareness on a particular stimulus known as?
Selective attention
is the focusing of conscious awareness on particular stimuli.
Why is REM sleep called paradoxical sleep quizlet?
REM sleep is also referred to as paradoxical sleep
because while the brain and other body systems become more active, muscles become more relaxed
. Dreaming occurs due to increased brain activity, but voluntary muscles become immobilized.
Which of the following is the best definition of blindsight?
The ability to respond to visual stimuli without consciously perceiving them
.
What is the awareness of internal and external stimuli called?
Consciousness
describes our awareness of internal and external stimuli. Awareness of internal stimuli includes feeling pain, hunger, thirst, sleepiness, and being aware of our thoughts and emotions. … We might even describe consciousness as a continuum that ranges from full awareness to a deep sleep.
Is the focus of awareness onto a stimulus?
The focusing of conscious awareness on a particular stimulus, as in the cocktail party effect (ability to attend selectively to only one voice among many).
Which term is most synonymous with consciousness as psychologists define it?
automatic processing
. Which term is MOST synonymous with consciousness, as psychologists define it? Courtney is a participant in a laboratory sleep study. Her EEG begins showing small bursts of electrical activity known as sleep spindles.
What is selective attention in psychology?
Selective attention refers to
the processes that allow an individual to select and focus on particular input for further processing
while simultaneously suppressing irrelevant or distracting information.
Why is REM sleep sometimes called paradoxical sleep group of answer choices?
REM sleep is often associated with very vivid dreams due to the increase in brain activity.
Because the muscles are immobilized yet the brain is very active
, this stage of sleep is sometimes called paradoxical sleep.
Why was REM sleep as paradoxical sleep at the same time?
REM sleep is “paradoxical”
because of its similarities to wakefulness
. Although the body is paralyzed, the brain acts somewhat awake, with cerebral neurons firing with the same overall intensity as in wakefulness.
Is blindsight a medical condition?
Blindsight is defined by the Oxford Concise Dictionary as “Medicine:
a condition in which the sufferer responds to visual stimuli without consciously perceiving them
,” implicitly referring, of course, to human patients. The historical origins, however, stem from animal research and neuroanatomy.
Which is the best explanation of how blindsight can happen Group of answer choices?
Which is the best explanation of how blindsight can happen?
Visual information from the eye is being processed unconsciously
, so people with blindsight don't know that they what they are visually processing.
What do blind people see?
A person with total blindness won't be able to see anything
. But a person with low vision may be able to see not only light, but colors and shapes too. However, they may have trouble reading street signs, recognizing faces, or matching colors to each other. If you have low vision, your vision may be unclear or hazy.
