preattention en · NOUN
Etymology
From pre- + attention.
Meanings
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(uncountable) The noticing of something before attention is fully focused on it.
However, to develop a comprehensive model of how Web advertising works, it is recommended to examine different levels (ie, low, medium, and high) of preattention and focal attention.
2007, Chan Yun Yoo, Preattentive Processing of Web Advertising, page 27: