Changing one form if energy into another. In sensation, the tranforming of stimulus energies, such as sights sounds and smells into neural impulses our brains can interpret.
Transduction
The minimum stimulation needed to detect a particular stimulus 50% of the time
Absolute threshold
Activating often unconciously associations in our minds thus setting us up to percieve or remember objects or events in certain ways
Priming
The minimum difference between 2 stimuli required for a detection 50% of the time
Difference stimuli
The principle that to be perceived as different 2 stimuli must differ by a constant
minimum proportion (rather than a constant amount).
minimum proportion (rather than a constant amount).
Weber's law
The distance from the peak of one light or sound wave to the peak of the next
Wavelength
The dimension of color that is determined by the wavelength of light; what we know as the color names blue green and so forth
Hue
The amount of energy in the light or sound wave which we perceive as brightness or loudness as determined by the waves amplitude
Intensity
the light-sensitive inner surface of the eye; contains the receptor rods and cones plus layers of neurons that begin the proccessing of visual information
retina
retinal receptors that detect black, white and gray; necessary for peripheral and twilight vision, when cones don't respond
rods
retinal receptor cells that are concentrated near the center of the retina; in day light or well lit conditions, these detect fine detail and give rise to color sensations
cones
the point at which the optic nerve leaves the eye; this part of the retina is "blind" because it has no receptor cells
blind spot
nerve cells in the brain that respond to specific features of a stimulus, such as edges, lines and angles
feature detectors
the proccessing of many aspects of a problem or scene at the same time; the brain's natural mode of information proccessing for many functions, including vision
parallel proccessing
a coiled, bony, fluid filled tube in the inner ear; sound waves traveling through this fluid trigger nerve impulses
cochlea
a social interaction in which one person suggests to another that certain perceptions, feelings, thoughts, or behaviors will spontaneously occur
hypnosis
the principle that one sense may influence another as when the smell of food influences its taste
sensory interaction
the sense of body movement and position, including the sense of balance
vestibular sense
an organized whole. These psychologist emphasized our tendency to integrate pieces of information into meaningful wholes
gestalt
the organization of the visual field into objects that stand out from their surroundings
figure-ground
the ability to see objects in their dimensions, although the images that strike the retina are two-dimensional; allows us to judge distance
depth perception
a laboratory device for testing depth perception in infants and young animals
visual cliffs
depth cues, such as retinal disparity, that depends on the use of two eyes
binocular cues
a binocular cue for perceiving depth; by comparing images from the two eyeballs, the brain computes distance - the greater disparity between two images, the closer the object
retinal disparity
depth cues, such as interposition and linear perspective, available to either eye alone
monocular cues
perceiving objects as unchanging even as illumination and retinal images change
perceptual constancy
perceiving familiar objects as having a constant color, even if changing illumination alerts the wavelengths reflected by the object
color constancy
in vision, the ability to adjust to an artificially displaced or even inverted visual field
perceptual adaptation
the controversial claim that perception can occur apart from sensory input, such as through telepathy, clairvoyance, and precognition
extrasensory perception
Kartensatzinfo:
Autor: MACsgirl11608
Oberthema: Psychology
Thema: General
Schule / Uni: University of Mississippi
Veröffentlicht: 01.03.2010
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