Perceptual change-of-mind decisions are sensitive to absolute evidence magnitude
William Turner, Daniel Feuerriegel, Milan Andrejevic, Robert Hester, Stefan Bode
Cognitive Psychology | ACADEMIC PRESS INC ELSEVIER SCIENCE | Published : 2021
To navigate the world safely, we often need to rapidly 'change our mind' about decisions. Current models assume that initial decisions and change-of-mind decisions draw upon common sources of sensory evidence. In two-choice scenarios, this evidence may be 'relative' or 'absolute'. For example, when judging which of two objects is the brightest, the luminance difference and luminance ratio between the two objects are sources of 'relative' evidence, which are invariant across additive and multiplicative luminance changes. Conversely, the overall luminance of the two objects combined is a source of 'absolute' evidence, which necessarily varies across symmetric luminance manipulations. Previous ..View full abstract
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Awarded by Australian Research Council (ARC)
This work was supported by an Australian Research Council (ARC) Discovery Project Grant [DP160103353] to SB and RH.