Module 16, 17, 18, 19, 20, 21 Flashcards
Sensation
The process by which our sensory receptors & nervous system receive & represent stimulus energies from our environment
Perception
The process of organizing & interpreting sensory info , enabling us to recognize meaning ful objects & events
Bottom up processing
Info processing that focuses on the raw material entering through the eyes , ears , & organs
Sensation
Top down processing
Info processing that focuses on expectations & experiences in interpreting incoming sensory info
Perception
Selective attention
The focusing of conscious awareness on particular stimulus
Inattentional blindness
Failing to see visible objects when our attention is directed elsewhere
Change blindness
Failing to notice changes in the environment
Transduction
Converting of a stimulus to neuron impulse
Absolute threshold
The minimum stimulation needed to detect a particular stimulus 50 percent of the time
You either sense it or don’t
Subliminal
Below ones absolute threshold for conscious awareness
Priming
The activation , of certain associations this predisposing one perception , memory , or response
Difference threshold
The minimum difference between two stimuli required for detection for fifty percent of the time . We experience the difference threshold as a just noticeable difference
Webers law
The principles that to be perceived as different , two stimuli must differ by a constant minimum percentage
( large difference , more senses )
Sensory adaptation
Diminished sensitivity as a consequence of constant stimulation
What occurs when experiences influence our interpretation of data ?
Top down processing
What principles states that to be perceived as different , two stimuli must differ by a minimum percentage rather than a constant amount ?
Webers law
What do we call the conversion of stimulus energies like sight & sound into neural impulses ?
Transduction
Natalia’s adjustment until she feels a difference is
Difference threshold
Tyshane body became accustomed to the water due to
Sensory adaption
Perceptual set
The tendency to perceive a person or situation in a certain way due to experiences
Extrasensory perception
The controversial claim that perception can occur apart from sensory input includes telepathy , clairvoyance , & precognition
Parapsychology
The study of paranormal phenomena including ESP & psychokinsis
What do we call a mental predisposition that influences our interpretation of a stimulus ?
Perceptual set
Which is produced by perceptual set
Surprise at hearing an Oklahoma cowboy speak w British accent
Wavelength
The distance from the peak of one light or sound wave to the peak of the next
Wavelengths vary from the short blips of cosmic rays to the long pulses of radio transmission
Hue
The dimension of color that is determined by the wavelength of light
Color
Intensity
The amount of energy in a light or sound wave which we perceive as brightness
Determine by amplitude
Pupil
Hole in the eye that light enters
Iris
A ring or muscle tissue that forms the colored portion of the eye around the pupil & controls the size
Lens
The transparent structure behind the pupil that changes shape to help focus images on retina
Retina
Where rods are located to see in very low light & detect movement
ONLY SEE WHITE & BLACK
Accommodation
The process by which the eye lens changes shape to focus near or far objects on the retina
Rods
Retinal receptors that detect black white & ray
Necessary for peripheral & twilight visions when cones don’t respond
Cones
See in color & clarity
Optic nerve
The nerve that carries neural impulses from the eye to the brain
Blind spot
No rods & no cones
Can’t see
Fovea
Clearest vision
Just cones
Feature detectors
Nerve cells in the brain that respond to the specific feauture of the stimulus
Shape angle & movement
Parallel processing
processing aspects of a problem
The brain’s natural mode of info processing for many functions like vision
Young helm jolts trichromatic theory
Cones are sensitive to red , green , & blue
All colors come in a comb of three
Opponent process theory
Sensory receptors in the retina come in pairs
AFTER IMAGES
What do the color theories show
That color processing occurs in two stages
Which of the following explains reserved color after images
Hearing opponent process theory
Which fits the physical properties of the color light waves
Large wave length , large amplitude
What do we call the transparent , protective layer that light passes through as it enter the eye
Cornea
Gestalt psychologists
Emphasized our tendency to integrate pieces of info into meaningful wholes
Figure ground
Organizing visual fields into objects that stand out from our surroundings
Grouping
to organize stimulis into coherent groups
Depth perception
The ability to see objects in 3D although the images that strike the retina are 2D
Allows to juste distance
Visual cliff
A laboratory device for testing depth perception in infants & young animals
Phi phenomenon
A movement created when two or more adjacent lights blink on & off quickly
Perceptual constancy
Size
Shape
brightness
Color constancy
Seeing familiar objects as having consistent color
even if changing illumination alters the wavelengths reflected by the object