sensation and perception Flashcards
define sensation
the stimulus- detection process by which our sense organs respond to and translate environmental stimuli into nerve impulses that are sent to brain
define perception
making sense of what our senses tell us, first conscious experience
what are 3 stages of detecting a stimulus
- environmental stimulus
- attended stimulus
- stimulus on receptors
what are 3 stages of experience and action
- perception
- recognition
- action
whats are the 3 stages of electricity
- transduction
- transmission
- processing
whats transduction
process where sensory receptors convert extrenal stimuli (light, sound, touch) into electrical signals that are interpreted by the brain
whats transmission
process neural signals/ sensory information carried from one place to another (often from sensory receptors to brain) or neurons within brain and nervous system
whats a transducer
converts energy in world into electrical energy
what transducer is there for:
- vision
- hearing
- touch
- smell
- taste
-position
- photoreceptor
- mechanoreceptor
- mechanoreceptor
- chemosensor
- chemosensor
how do photoreceptors work
from photons to electrochemical energy
whats the sensory system for position called
proprioception
whats the sensory system for balance called
equilibrioception
whats the sensory system for temperature called
thermoception
whats the sensory system for pain called
nociception
whats the sensory system for acceleration called
kinesthsioception
whats electroception
the ability of certain animals to detect electrical fields or currents in their environment
what does the lateral line in fish do
the hair cells detect vibration
what are some aspects of electroreception
- used by conductive objects and resistive objects generated by the organism
what cells does fovea have in it and whats it associated with
lots of cone cells, associated with resolution
whats the optic nerve
bundle of neurons, goes to brain for processing
where are rod cells found, what they do and what colour they see
in retina
- responsible for seeing in low light detecting shapes and motion
- only see in black and white
where are cone cells found, what they do and what colour they see
retina but specifically the fovea
- sees fine details and work best in bright light, can detect colour
- sensitive to red, green and blue light
what % of light gets into eye
7, 7 photons absorbed by visual pigment
