Figure 1.

Example: Attention influences psychological space. Left: In an object identification task, both psychological dimensions should receive equivalent attention, as they are equally relevant. Right: In a one dimensional rule-based categorization task, only a single dimension is relevant (in this example, size), and decision-makers could ignore the irrelevant dimension (shape). This is often described as “warping” psychological space such that differences along relevant dimensions are accentuated (or “stretched”), and differences along irrelevant dimensions are down-weighted (or “compressed”).