chapter 14 Flashcards
what is absolute threshold
the minimum amount of stimulus energy needed to perceive a stimulus
RTTSOI
reception transduction transmission selection organisation interpretation
what is light energy
between 360 violet to red 760 nanometres
what are rods
125,000,000 in each eye
responsible for low light vision
peripheral vision
only register black and white
what are cones
6,500,000 in each eye
responsible for vision of detail
responsible for color vision
how many tastebuds and how many receptor cells, how long do they last?
10,000 tastes. buds in our mouth, each bud contains 50-150 taste receptor cells, each cell lives for 10 days
what are the five primary tastes
Bitter sweet sour salty umami
what are the 5 senses
vision taste touch smell hearing
reception
stimulus energy us collected by sense organ
transduction
converted to electrochemical impulses
transmission
sent to primary sensory cortex
selection
pick out the stimuli that are important to us
organisation
make sense of the information
interpretation
gives stimulus meaning influenced by past experiences, motives, values and context
steps of perception in vision
light enters through cornea passes through pupil, lens.
