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SENSATION/PERCEPTION (Vision (Eye parts: quizlet (rods: detect…
SENSATION/PERCEPTION
Vision
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Eye parts: quizlet
retina: see upside down, unfiltered image
rods: detect black/grey/white, peripheral & twilight vision
share bipolar cells - so focus on 1 thing, others blurry
rhodopsin - activated with low light, not in high light
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feature detector: nerve cell that responds to specific features eg shape, angle, movement
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accidental discovery in cats response to lines, bars and edges
each eye see info, processed in opp brain
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Sensation: receives info
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distal stimuli-raw and unprocessed, proximal stimuli - literal image/processed for depth, context, distance etc - look at tree
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Hearing
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loudness - amplitude
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depends on no. of activated hair cells, not intensity
every 10 dB increase = 10x louder, seems 2x louder
actual: 10^sth, seem: 2^sth
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Taste
sweet - energy source, salty- sodium for physiological process, sour - bad acid, bitter - poison, (umami may be made up)
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Processing:
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Parallel Processing - used in facial recognition, visual subtask in perceiving motion eg pouring tea
Touch
sensitive to: pressure, warmth, cold, pain
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Pain: body say stay away
noniceptors: sensory receptor that allows perception of pain in resp to potentially harmful sit - pressure, temperature, chemicals
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