title: Expectation in perceptual decision making: neural and computational mechanisms.
abstract: Sensory signals are highly structured in both space and time. These structural regularities in visual information allow expectations to form about future stimulation, thereby facilitating decisions about visual features and objects. Here, we discuss how expectation modulates neural signals and behaviour in humans and other primates. We consider how expectations bias visual activity before a stimulus occurs, and how neural signals elicited by expected and unexpected stimuli differ. We discuss how expectations may influence decision signals at the computational level. Finally, we consider the relationship between visual expectation and related concepts, such as attention and adaptation.
authors.affiliation: Department of Experimental Psychology, University of Oxford, South Parks Road, Oxford, OX1 3UD, UK.
authors.forename: Christopher
authors.initials: C
authors.lastname: Summerfield
authors.affiliation: Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Kapittelweg 29, 6500 HB Nijmegen, The Netherlands.
authors.forename: Floris P
authors.initials: FP
authors.lastname: de Lange
mesh_terms: D000818:Animals; D003198:Computer Simulation; D003657:Decision Making / Q000502:physiology*; D006801:Humans; D008959:Models, Neurological; D009042:Motivation; D009474:Neurons / Q000502:physiology*; D017603:Signal Detection, Psychological / Q000502:physiology; D014796:Visual Perception / Q000502:physiology*