Louise Kauffmann
@louisekauffmann.bsky.social
65 followers 72 following 10 posts
Associate professor at Grenoble Alpes University - Laboratory of Psychology and Neurocognition (LPNC) Predictive mechanisms in visual perception - eyetracking - cognitive neurosciences https://lpnc.univ-grenoble-alpes.fr/fr/louise-kauffmann
Posts Media Videos Starter Packs
louisekauffmann.bsky.social
Many thanks to 2 anonymous reviewers for their helpful and constructive comments on the earlier version of the manuscript!
louisekauffmann.bsky.social
These findings support predictive processing theories according to which the relative weight of predictions over the processing of sensory inputs varies with their reliability. They also reveal reciprocal influences between context- and object-based predictions in shaping visual perception.
louisekauffmann.bsky.social
Our findings show that predictable objects and scenes were perceived as sharper than unpredictable ones. Perceptual sharpening emerged mainly when inputs were degraded (blurred) and scaled with the robustness of predictions.
louisekauffmann.bsky.social
In our second experiment, we manipulated the availability of object-based predictions about blurred scene contexts by embedding either an intact object (predictable context) or a fully phase-scrambled object (unpredictable context).
louisekauffmann.bsky.social
In our first experiment, blurred objects were embedded in a scene context. We manipulated the robustness of context-based predictions about the object by scrambling the scene’s phase spectrum at different levels.
louisekauffmann.bsky.social
We evaluated the perceived sharpness of blurred scenes and objects using a perceptual matching task (adjust the blur of the right image to match the left one).
louisekauffmann.bsky.social
Following our previous studies showing that scene-based predictions sharpen the perception of blurred objects, this study further asks whether this effect scales with the robustness of predictions and whether object-based predictions reciprocally sharpen the perception of scene context