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Perception

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the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events
we must perceive a figure from its ground
transform 2D into 3D
Brain computes motion as images move across the retina
how we can recognize an object
the focusing of conscious awareness on a particular stimulus
The ability to attend selectively to one voice among many
inability to see an object or a person in our midst
a form of inattentional blindness; when you do not notice when something changes because you are so focused on something else
carpentered cultures use many right angles so they see the lines as having different lengths. non carpentered cultures may see the lines at the same length >------<------>
designed to demonstrate the size-distance illusion
the tendency for vision to dominate the other senses
an organized whole; the tendency to integrate pieces of information into meaningful wholes
people tend to pereive objects in a simple, orderly way
the organization of the visual field into objects (the figures)that stand out from their surroundings (the ground)
the perceptual tendency to organize stimuli into coherent groups
group nearby figures together
group figures that are similar
perceive continuous patterns
spots, lines, and areas are seen as a unit when connected
fill in the gaps
ability to see things in 3-D and it allows us to judge distance
an experiment by Elanor Gibson & Richard Walk(1960) suggested that human infants (crawling age) have depth perception
require both eyes
available to each eye separately; used by artists
images from the two eyes differ; closer the object, the longer the disparity
neuromuscular cue; two eyes move inward for near objects; brain uses the angle at which the eyes are turned to gauge distance
smaller image is more distant
if one object partially blocks another, we perceive it as closer
hazy objects are seen as more distant
course objects appear closer and fine objects are distant
Objects higher in our field of vision appear farther away ;vertical longer than horizontal
Closer objects seem to move faster
parallel lines appear to converge with distance
closer objects appear brighter; shading produces depth
objects traveling towards us grow in size and those moving away shrink in size. the same is true when the observer moves to and from an object
an illusion of movement created when two or more adjacent lights blink on and off in succession
the brain will interpret a rapid series of slightly varying images as continuous movement
perceiving objects as unchanging even as illumination and retinal images change
car driving away appears smaller but doesnt shrink
look at a dinner plate from various angles
shirt looks different in different light
our brains have a template for everything we need to know and we match what we see to the templates
we see what the best example of something is and see if they are close enough to match
we break down a feature into parts and analyze what it is
discovered by nobel prize winners, Hubel and Weisel discovered this which fire only in response to particular angles or lines in the visual field.
1.knowledge comes from inborn way of organizing sensory experiences 2.Locke said through our experiences we learn to perceive the world
kittens raised without exposure to horizontal lines later had difficulty perceiving horizontal lines
Visual ability to adjust to an artificually displaced visual field (ex:prism glasses)
a mental predisposition to perceive one thing and not another (determined by the schemas you form as a result of your experiences)
concepts that organize and interpret unfamiliar information
explores how humans and machines interact and how machines and physical environment can be adapted to human behaviors
the controversial claim that perception can occur apart from sensory input
people who study beyond normal occurences
1.telepathy 2.clairvoyance 3.precognition
mind over matter
mind to mind communication
perceiving remote events
perceiving future events
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