What is the difference between sensation and perception?

5A sensory adaptation 1

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From Sensation to Perception

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.

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The Basic Senses and What They Detect

What do we detect?

Light waves

pressure

waves

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

5A sensory adaptation 4

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Wave properties and their relation to perception

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

5A sensory adaptation 5

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

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