sensation and perception
purpose of perception
inform us about properties of envioroment that are important for survival
process of perception
using info from our senses, our perceptual system creates model of envioroment in our mind
top-down processing
perceptual or cognitive processing thats based on prior knowledge or experience
bottom up processing
perceptual or cognitive processing thats based on info coming directly from stimulus + activating receptors in sensory organ
change blindness
we can fail to see things that are there
transduction
process in which envioromental stimuli are converted into neural activity
transmission
carries signals from receptors to brain and around brain
processing
occurs during interactions in brain