Back to AI Flashcard MakerPsychology /GRE® Psychology Biological: Sensation and Perception Part 5
GRE® Psychology Biological: Sensation and Perception Part 5
This deck covers key concepts in sensation and perception, focusing on biological aspects such as neural processing, sensory thresholds, and perceptual phenomena.
What are people with prosopagnosia unable to do?
recognize faces Prosopagnosia appears to affect the fusiform gyrus and can be either following brain trauma or congenital.
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Key Terms
Term
Definition
What are people with prosopagnosia unable to do?
recognize faces Prosopagnosia appears to affect the fusiform gyrus and can be either following brain trauma or congenital.
Why does a single light in darkness appear to move?
The constant motion of our own eyes causes static objects to appear in motion, which is referred to as the autokinetic effect.
Why is it that dogs can respond to higher-pitched sounds than humans?
Dogs have a different terminal threshold than humans. The terminal threshold is the upper limit of perceivable stimuli, so while humans are unable to ...
What does the basilar membrane do?
It vibrates in response to sound coming from the stapes.
What type of cells respond to pain and temperature changes in the skin?
free nerve endings
What do Pacinian corpuscles respond to?
vibration
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| Term | Definition |
|---|---|
What are people with prosopagnosia unable to do? | recognize faces Prosopagnosia appears to affect the fusiform gyrus and can be either following brain trauma or congenital. |
Why does a single light in darkness appear to move? | The constant motion of our own eyes causes static objects to appear in motion, which is referred to as the autokinetic effect. |
Why is it that dogs can respond to higher-pitched sounds than humans? | Dogs have a different terminal threshold than humans. The terminal threshold is the upper limit of perceivable stimuli, so while humans are unable to recognize high-pitched tones, dogs can still distinguish them. |
What does the basilar membrane do? | It vibrates in response to sound coming from the stapes. |
What type of cells respond to pain and temperature changes in the skin? | free nerve endings |
What do Pacinian corpuscles respond to? | vibration |
What are the fast-adapting skin receptor cells that respond to light touch? | Meissner's corpuscles |
What is the two-point threshold? | It is the point at which touch from two separate objects is recognized. Different places on the body have smaller or larger two-point thresholds. |
When you feel neither warm nor cold, what might your skin be experiencing? | physiological zero Usually around 85 degrees farenheit, this is the point at which your skin will not feel temperature sensations. |
Mirror boxes have been shown to reduce which type of pain or sensation? | phantom limb pain Phantom limb pain is when an amputee feels pain in the limb that is no longer attached. |
What causes us to turn in the direction of something touching us? | the orienting reflex |
Who defined the just-noticeable difference (or differential threshold)? | E. H. Weber |
What is the visual field? | It is the total perceptible area at any given time without moving your head or eyes. |
What causes us to understand that a train is in the distance because it appears to be moving slowly and a train is close because it appears to be moving quickly? | the motion parallax |
What causes perceived differences in brightness in visual regions? | lateral inhibition Interconnected neurons inhibit each other to produce contrast at the edges of regions. |
Who suggested the tri-color theory (or component theory)? | Thomas Young and Hermann von Helmholtz Helmholtz is also known for his theory on color blindness. |
What neuronal layers stand between the rods and cones and the optic nerve? | • horizontal cells • amacrine cells • bipolar cells • ganglion cells |
What are the three types of cells Hubel and Wiesel differentiated with regard to signal detection theory? | 1. simple: concerned with boundaries and orientation of an object 2. complex: information about movement 3. hypercomplex: information about shape |
What photopigment is contained in the rods? | rhodopsin |
True or False: The law of prägnanz allows us to find complex and specific details in objects. | False The law of prägnanz says we organize the things we perceive in the simplest or most orderly way possible. |
What type of motion occurs when a stationary point of light has the appearance of movement against a moving background? | induced motion |
Fill in the blank: The motion aftereffect states that if we see an object in motion for a long time and then it stops, it will appear to move in the ______ direction even though it is not moving at all. | opposite |
What did Fantz's experiments demonstrate about preferential looking in babies? | If they looked at different stimuli for different periods of time, that meant they could tell a difference between the objects; if they spent more time looking at one object than another, it signaled preference; babies prefer to look at complex objects, like faces and patterns more than uniform objects. |
What brain structures are important for visual processing? | • lateral geniculate nucleus (thalamus) • superior colliculus • visual cortex (occipital lobe) |
What brain structures are important for auditory processing? | • inferior colliculus • medial geniculate nucleus (thalamus) • auditory cortex (temporal lobe) |