Topic: feedback mechanism

An important open question in vision neuroscience is how the brain integrates prior knowledge with sensory data to perceive the world. The Bayesian brain hypothesis suggests that the brain performs posterior inference based on an internal model to construct representations that explain the stimulus. Indeed, there is support for this hypothesis in vision. Vision is not a passive process; rather, it actively recovers the features of an object from the signal cast on the retina. Even when faced with a cluttered scene of overlapping objects, the visual system quickly parses positional relationship