What is the difference between sensation and perception?

From Sensation to Perception

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Sensation

The process of detecting a stimulus, such as light waves (vision), sound waves (hearing), chemical molecules (smell and

taste), heat or pressure (touch).

Perception

The process of integrating, organizing and interpreting sensations.

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This chapter is about detection what is in our environment (sensation) and determining what it is (perception). Part of determining what it is, is determining if what we perceive is a threat to survival to avoid, or something that is helpful for survival and approach.

The Basic Senses and What They Detect

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What do we detect?

Light waves

pressure waves

Image source: Psychology (2011), Schacter et al.

Wave properties and their relation to perception

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Image source: Psychology (2011), Schacter et al.

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Image source: Psychology (2011), Schacter et al.

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