What Is Meant by Bottom-Up and Top-Down Processing in Sense and Perception?
Bottom-up processing is the analysis that begins with the sense receptors and works up to the brain's integration of sensory information. It describes the work of sensory receptors that change stimuli into neural messages that most usually reaches the brain. Sensation is the process by which our sensory receptors and nervous system receives stimulus energies from our environment. Bottom-up processing is akin to sensation.
An example of bottom up processing occurs in vision. Bottom-up processing beings with transduction, which is the conversion of stimulus energy into neural impulses. …
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