Chapter 1

Our Perception is Biased

Abstract

What we perceive is not an accurate reflection of our environment. It is biased by at least three factors: past experience, current context, and future goals. This chapter discusses these factors in detail, gives examples of how they bias perception, and explains their implications for designing interactive systems.

Keywords

perception; bias; priming; frames; habituation; attentional blink; context; optical illusion; Müller–Lyer; McGurk effect; goals; cocktail-party effect; ambiguity

Our perception of the world around us is not a true depiction of what is actually there. Our perceptions are heavily biased by at least three factors:

• The past: our experience

• The present: the current context

• 

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