This paper presents a review of adaptation concepts at the evolutionary, environmental, neural, sensory, mental and mathematical levels, including Helson’s and Parducci’s theories of perception and category judgments. Two kinds of adaptation can be clearly distinguished. The first, known as...

Purpose – Despite the call from the public domain to use normal‐sized models (NM) in advertising and the fact of the recent movement in the practitioner's domain concerning the use of NM, knowledge of the advantages/disadvantages concerning the use of NM in comparison to small‐sized models...