Hot answers tagged cognitive-psychology
Vogels and Orban (1985) asked subjects to complete several thousand angle judgments at near-principal angles (horizontal or vertical). They found that the just-noticeable difference (JND), the threshold at which people could reliably detect deviation from a horizontal line, was 0.5 degrees after a 600ms exposure to the stimulus. The real purpose of their ...
Citing Muller et al’s, (1955) work on electronic displays, Eastman Kodak’s (1983) Ergonomics Design for People at Work states that people can discriminate 24 different absolute angles of inclination under optimum viewing conditions. This implies that an angle of 360/24 = 15 degrees can be readily classified as inclined rather than flat. However, I’d say 15 ...
Defensive Pride I would say match your question title.
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