chapter 3 tuesday notes 9/6 Flashcards
5 senses
taste, sight, hear, smell, touch
touch can be seperated into the two categories of
kinesthetic and vestibular
sense of muscle movements
kinestethic
sense of equilibrium/ balance
vestibular
energy from outside or within stimulates receptor cells
sensation
respond to energy and sends messages to the brain
receptor cells
example of receptor cells
eyes/ ear
receptor cells respond to particular
energy
process of converting energy into the coded neural signals
transduction
what path does the neural signals take to the brain
sensory pathway
specific sensation produced depends on
how many neurons
how the neurons are fired
1 on 1 relationship between the stimulation of nerves and specific experiencs
doctrine of specific nerve energies
minimum intensity needed for energy to reach receptor cell
absolute threshold
difference threshold; the smallest amount a stimuli can change and still notice a difference
JND just noticeable difference
proportional noticeable difference. Depends on strength and intensity of original substance. threshold for noticing change proportional to the original
weber’s law
adjustment of senses to the level of stimulation
adaptation
back part of eye, where the receptors are; contains photoreceptor cells
retina
contracts in bright light; opens up in darkness
iris
blind spot
optic nerve
center of sight; focus
fovea
light goes from the __to__to___
pupil - lens - retina
receptor cells responsible for night vision/ outside of fovea
rodds
colors, best in relatively bright light
cones
