Perception 7 Flashcards

Depth perception
Terms Definitions
monocular eye
1 eye
active and info. seeking.
Because of cultural influences, Americans tend to engage more in _____thinking while Easterners engage more in_______thinking
Detects internal sensations, pain, temp.
the the perceptual tendency to organize stimuli into coherent groups
a Gestalt grouping principle; elements that are connected to each other group together.
the study of paranormal phenomena, including ESP and psychokinesis
A three-month-old child is being prepared to get a shot at a health clinic. She detects the needle just as a long line and does not react to it or interpret it. To her it is just a long line and nothing more. This is an example of:
chemical compounds that arre stimulus for smell.
given, done, bestowed, or obtained without charge or payment; free; voluntary.
extrasensory perception (ESP)
the controversial claim that perception can occur apart from sensory input. Said to include telepathy, clairvoyance, and precognition.
visual cliff
laboratory device for testing depth perception in infants and young animals
perceptual set
a mental predisposition to perceive one thing and not another
Although a recent study supported the occurence of psi phenomena, many researchers are waiting for these positive results to be __
A skywriter is writing the words "VOTE FOR JOHNSON" in the bluesky above a football stadium during a game. However, his emission system becomes clogged so that only parts of the letters appear. Johnson tells him not to worry, the crowd will per
The fact that our first impressions of people are influenced by their facial features, hairstyles, and skin color suggest that perceptions are:
Perceptual organization
intially performed byt the perceptual system to determine what stimuli go together to form an object. Guided by figure ground processing. The figure is that part of the visual field that has meaning and stands out from the rest of the stimulus is the ground.
monocular cues
distance cues, such as linear perspective and overlap, available to either eye alone
inner ear
cochlea, oragan of corti, cochlear partition, hair cells, and cillia
parallel processing
processing mulitple stimuli at the same time
deviating from the regular or proper course; erring; straying.
Binocular Cues
depth cues, such as retinal disparity and convergence, that depend on the use of two eyes
texture gradient
a monocular cue for perceiving depth; a gradual change from a coarse distinct texture to a fine, indistinct texture signals increasing distance. objects far away appear smaller and more densely packed.
Context effects
The influence of the surroundings on the recognition or interpretation of patterns or objects.
stroboscopic movement
brain interprets a rapid series of slightly varying images as continuous movement
Cues for depth perception that depend on both eyes are called
binocular cues
Out of 12 alleged psychics who have accepted James Randi's $100,000 challenge, how many have successfully demonstrated their psychic ability?
A stimulus that is detected less than 50% of the time is called a(n) ________ stimulus
Stroboscopic motion
an illusion in which we percieve continual movemnet from a series of still images flashed in rapid succession.
saccadic supression
in between eye shift, you blank out
Retinal Disparity
a binocular cue for percieving depth; by comparing images from the two eyeballs, the brain computes distance- the greater the disparity (difference), the closer the object
decorated or made with a design set into the surface:
depth perception
the ability to see objects in three dimension although the images that strike the retina are two-dimensional; allows us to judge distance
change blindness
the tendency to fail to detect changes in any part of a scene to which we are not focusing our attention
Gestalt psychologists explain perceptions based on the principles of organization which are rules that specify how
our brains organize sensations into perceptions
What information is remembered the best?
Stable/consistent traits, credible source, extreme/unusual behavior, negative traits, info we receive first (Primacy Effect)
Supper colliculus
a structure in the midbrain that is important in initiating and guiding eye movements
What is figure/ground differentiation?
The distinction between objects and background
perceptual adaption
in vision, the ability to adjust to an artificially displaced or even inverted visual field
______ cues make the moon on the horizon look larger because it appears ______.
distance, farther away
smooth pursuit
type of eye movement in which the eyes move smoothly to follow a moving object.
What is covert orienting?
You can't see what someone is attending to
What is bottom-up processing?
This would be used in figuring out what a word is based on its individual letters.
Apparent Travelling Wave
Each point is just going up and down, but it appears to be moving.

Envelope of the wave:
rises to a peak value and collapses, take a line of all the peak waves
How do we perceive movies?
All movement in movies is generated by your brain; a movie is actually a series of stationary pictures. Your brain fills in the apparent motion that occurs between each of these pictures.
What are the two metaphors for attention?
Attention is like a spotlight and attention acts like glue.
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