Psychology Test #2

the process of the creation of a nerve impulse (via environmental stimulation), and the transportation of that impulse into the CNS

through all 5 senses

the brain's interpretation of a sensation

• it gives a quality to the incoming sensory info
• ex: bright, pleasant, sweet, smooth

• any form of (pure) environmental energy which produces a sensation (anything which causes a receptor cell to fire)
• must produce a sensation

• becoming so used to a stimulus that it no longer produces a perception
• the brain has the ability to screen out extraneous info

• the point at which a sensation produces a perception
• it rises

the brain's ability to detect/ register stimuli that are presented so weakly that they are not perceived consciously