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Module 16 (Bottom Up Processing (When interpretation begins with receptors…
Module 16
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Psychophysics
The study of the relationship between the physical aspect of stimuli and their impact on our psychology
Sensation
The process of our receptors and nervous system taking in information and stimuli from our surroundings
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Change Blindness
A form of inattention blindness, when we fail to notice a change in our environment
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Subliminal
When a stimuli is below the absolute threshold, not allowing the person to detect it
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Signal Detection Theory
The theory that states that when we are detecting a faint stimuli and background noise, the chance of the person detecting the stimuli is based off of the person.
Weber's Law
A principle that two different stimuli can be perceived as different if they have a different constant percentage
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Module 18
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Fovea
The focal point of a retina, where the cones are centered
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Retina
Inner layer of the eye that has rods, cones, and neurons to process visual stimuli
Blind Spot
Point in the eye where there is no optic nerve. This creates a blind spot because of the lack of nerves in that area.
Cones
Other receptors that are in the retina, only respond in high light situations and show details and color
Rods
Receptors that are used for detecting black, white, gray, and movement. Needed for peripheral and night vision
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Wavelength
Distance from a light or sound to the next, EMG waves can change from blips of gamma to a pulse of radio transmission
Module 19
Gestalt
Organized psychologists that emphasize the tendency to put pieces of information and put them with another
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Retinal Disparity
The cue for seeing depth, this is done by comparing the separate images from the eyes
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Module 20
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Middle Ear
A chamber that is found between eardrum and cochlea, mad of three small bones. Used to concentrate on vibrations
Pitch
The tone that can be expressed in highs and lows, depends on the frequency of sound.
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Cochlea
A small coiled bone tube that is filled with fluid. When sounds vibrate the liquid it triggers nerve impulses
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Senses
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Touch
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Pressure, Temperature, and chemicals
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Kinesthesia
Sensors in joints, tendons, and muscles
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Module 21
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Gate Control Theory
Theory that the spinal cord has a cord that stops pain signals or allows them into the brain. It can be opened or closed based on activity of fibers
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