AOS1 Sensation and perception Flashcards
what is perception
Perception is the way we interpret these sensations and therefore we make sense of everything around us.
list the 3 stages of sensation
reception -> transduction -> transmission
list the 3 stages of perception
selection -> organisation -> interpretation
what is reception?
reception is the process in which our sense organs receive information from our environment.
what is sensation?
sensation is the processing and sensing our environment through touch, taste, sight, sound and smell. this information is then sent to our brains.
what is transduction?
Transduction is the process of converting sensory data into a new form which is sent along the neural pathways to the brain.
what is transmission?
Transmission is the process of sending electrochemical messages to the brain.
what is selection?
Selection is the process of focusing on certain sensory stimuli
what is interpretation?
Interpretation- the process of understanding and assigning meaning to sensory information.
what is organisation?
our brain organises information into meaningful groups
what is the process of sensation through to perception?
reception, transduction, transmission, selection, organisation and interpretation
what is reception in vision?
reception in vision is the eye receiving incoming light and focusing it onto the retina
what is transduction in vision?
Transduction is the conversion of electromagnetic light energy into electro chemical energy.
what is transmission in vision?
Transmission occurs along the optic nerve, sending information from the retina to the brain. (occipital lobe)
what is selection in vision?
Selection is choosing visual stimuli that are important.
what is organisation in vision?
The primary visula cortex analyses incoming messages
what is interpretation in vision?
interpretation- The brain recognises the object/ person as familiar.
what is reception in taste?
chemicals are dissolved in the saliva and the sensation is received by taste buds
what is transduction in taste?
The chemical energy is converted by
the receptors on the taste buds into
electrochemical nerve impulses.
what is transmission in taste?
the signal is sent to the brain (gustatory cortex in the parietal lobe)
what is the function of the retina?
A layer of light sensitive cells that detects images caught by the lens and the cornea.
what is the receptor for vision?
photo receptor cells or the rods and cones
what is the receptor for taste?
taste buds
what is the function of the cornea?
bends light that passes through, which is the first step in making an image.