Article

Perceptual Decoys Do Not Reliably Bias Choice: Boundary-Condition Evidence

2025-11-04

Abstract excerpt

The decoy effect occurs when adding an inferior third option biases choice between two others, even though the decoy is rarely chosen. While robust in value-based decisions, evidence in perceptual tasks is mixed. Using the rhesus-macaque paradigm from Parrish et al. (2015), we tested whether a perceptual decoy effect generalizes to humans. Participants ( n = 50) completed 400 trials. Contrary to our preregistered...

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Literature Corpus work: 892db65d-969e-5168-85a5-c96f7c2ea212
DOI: 10.1101/2025.11.02.686051

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