Prior expectations evoke stimulus templates in the deep layers of V1

• DOI: 10.1101/2020.02.13.947622
• Publication Date: 2020-02-14T21:05:14Z
• Authors: Fraser Aitken; Georgios Menelaou; Oliver Warrington; Renée S. Koolschijn; Nadège Corbin; Martina F. Callaghan; Peter Kok
• Keywords: Stimulus (psychology); Template

Abstract The way we perceive the world is strongly influenced by our expectations. In line with this, much recent research has revealed that prior expectations modulate sensory processing. However, neural circuitry through which brain integrates external inputs internal expectation signals remains unknown. order to understand computational architecture of cortex, need investigate these flow cortical layers. This crucial because different layers have distinct intra- and interregional connectivity patterns, therefore determining are involved in a computation can inform us on sources targets signals. Here, used ultra-high field (7T) functional magnetic resonance imaging (fMRI) reveal evoke stimulus templates selectively deep primary visual cortex. These results shed light circuit underlying perceptual inference.