The implied motion aftereffect changes decisions, but not confidence
Autor: | Thomas Suddendorf, Regan M. Gallagher, Derek H. Arnold |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Motion aftereffect
Linguistics and Language Sensory processing media_common.quotation_subject medicine.medical_treatment Movement Short Report Motion Perception Sensory adaptation Experimental and Cognitive Psychology Sensory system Confidence Language and Linguistics Motion (physics) Perceptual aftereffect Motion Mental Processes Figural Aftereffect Perception Motion direction medicine Humans Categorical variable media_common Sensory Adaptation Sensory Systems Decision process Psychology Cognitive psychology Decision-making |
Zdroj: | Attention, Perception & Psychophysics |
ISSN: | 1943-393X 1943-3921 |
Popis: | Viewing static images depicting movement can result in a motion aftereffect: people tend to categorise direction signals as moving in the opposite direction relative to the implied motion in still photographs. This finding could indicate that inferred motion direction can penetrate sensory processing and change perception. Equally possible, however, is that inferred motion changes decision processes, but not perception. Here we test these two possibilities. Since both categorical decisions and subjective confidence are informed by sensory information, confidence can be informative about whether an aftereffect probably results from changes to perceptual or decision processes. We therefore used subjective confidence as an additional measure of the implied motion aftereffect. In Experiment 1 (implied motion), we find support for decision-level changes only, with no change in subjective confidence. In Experiment 2 (real motion), we find equal changes to decisions and confidence. Our results suggest the implied motion aftereffect produces a bias in decision-making, but leaves perceptual processing unchanged. |
Databáze: | OpenAIRE |
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