Transcript Document

or
Your distorted view of the
world, and why nothing is
as it seems.
Renee Descartes
“Cogito Ergo Sum”
Vision – Candle flame
seen at 30 miles
Taste – Teaspoon of
sugar in 2 gallons of
water
The extent to which a stimulus must
increase in order for the change to be
noticeable
Weber’s Law
I
= k
I
Adaptation – The ability to adjust to
stimuli such as they are no longer
uncomfortable or even noticeable
Shepard Tones
Little Rat Rotton Hut
Cough Studies
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1) The World as it exists is not what we perceive
2) To make up for deficiencies in our sensations,
we engage in top down processing, which leads
to predictable errors
3) Our attentional processes are limited to allow us
to focus on what is important
4) Beware of upside down faces…