Lecture 2: Perceptual process
Perception is subjective
What does it mean?
In this step, we will learn that perception is subjective. It is not a ‘copy’ of the objective form of things in the world. Traditionally, psychologists have two mechanisms to explain how perception is shaped, including ‘bottom-up processing’ and ‘top-down processing’.
Both bottom-up processing and top-down processing are critical to the shaping of perception.
- Bottom-up processing is more relevant to how sensory information is transformed and how the basic components of an object are detected.
- Top-down processing is more relevant to how the human mind interprets information.
Before you move to the next step, we recommend you to check this video:
Ramachandran – Ramachandran – Ames room illusion explained
Ramachandran, a famous neuroscientist, explains the secret behind the Ames room.
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