Mechanisms of activity modulation in V1 during illusory shape perception: predictions or amodal completion?
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2017-08-24
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en
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Perception is proposed to arise as a generative process in which early areas of the visual stream receive predictions from later areas, allowing for a faster and more efficient processing of visual input. In a recent study using Kanizsa illusory configurations, Kok & de Lange (2014) found that a pattern of BOLD activity resembling predictions and prediction errors could be found in primary visual cortex (V1), providing support for a predictive coding account of perception. However, an alternative interpretation has been suggested to explain these effects (Moors, 2015). We conducted an fMRI experiment to test the two proposed interpretations. Our results fail to provide conclusive evidence for either of the accounts, but provide insight into key aspects to consider for further research into the mechanisms of illusory shape perception.
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Faculteit der Sociale Wetenschappen