Summary

DEFINING SENSATION AND PERCEPTION -Sensation - perception of physical zip emitted or reflected by physical objects -energy stimulates receptors in intellect organs -Perception -brain selects, organizes and interprets sensory(prenominal) information -organization of sensation [sensation] input signal energy ( spark,sound,etc)-> sensory receptors (eyes,ears,nose)-> neuronic impulse (synaptic transmissionchemical and galvanizing energy)-> brain (visual, auditory) [perception] PSYCHOPHYSICS: mentionive work STIMULI -absolute threshold -trying to understand what is the smallest tot of sensation that you rotter genuinely detect -on a dark hillside, no set out and soul holds a cigarette lighter and flicks it on, how far away could you be and still checker it? -the smallest quantity of physical energy that buns be reliably detected -touch, taste, vision -species specific ex. Our sense of smell with a dog -measured as 50% detection (smallest amo unt of energy your form crowd out detect 50% of the time) -examples: Vision: natural world, eff darkness, no light pollution- a gutterdle flame kindle be seen 50 km away.

(From here to Vancouver island) -we can see this 50% of time, however without delay in that respect is so a good deal light pollution this can seldom happen -Hearing: sit in a quiet room, can from 6 meters away hoo-ha the ticking of a wrist watch -Taste: 2 congius container of water, smallest amount of taste were able to detect is one teaspoon of scraping -Smell: one drop of perfume around an flat tire we can detect that smell. -Touch: measured by the wing of a tent-fly dropping onto cheek from the hei ght of one cm contrastive on other parts of! body - variance threshold and jnd -smallest difference that you can detect in amount of stimulant -how much more stimulation does there have to be for you to notice a difference? - just-noticeable difference= entirely Noticeable Difference -Webers law: size of JND proportionate to size of initial stimulus -size of initial stimulus is very(prenominal) important,...If you want to get a full essay, order it on our website: OrderEssay.net

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