Wize University Psychology Textbook > Attention & Memory
Perceptual Processes
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Perceptual Processes
Sensation - Stimulation of sense organs, converted to neural impulses through transduction
Example: Light hitting retina, sound waves hitting ear, etc. becomes neural impulses
Perception - Selection, organization, interpretation of sensory input
Example: interpreting the light/colours you are seeing as an apple
Our brains interpret sensory information by using our expectations, past experience, and other sensory inputs. Occasionally, this leads to errors like optical illusions and inattentional blindness.
Mark Yourself Question
- Grab a piece of paper and try this problem yourself.
- When you're done, check the "I have answered this question" box below.
- View the solution and report whether you got it right or wrong.
Practice: Perceptual Processes
What is the difference between sensation and perception?
Practice: Sensation vs. Perception
Paul describes a crayon as "red", and Mary describes it as "cherry red". This is a difference in: