The focus of the Leon Deouell's Human Cognitive Neuroscience Lab is on the interface between automatic, non-conscious stages of information processing in the brain and conscious perception and action. This interest stems from observations and empirical studies of stroke patients mainly with right hemisphere damage and unilateral neglect, who lose the ability to attend and respond to the part of space opposite their lesion. To investigate what types of structures and processes need to be intact to support the transition from background processing to conscious awareness of events in the environment, we use performance measures, eye movements, electrophysiology (EEG and intracranial ECOG) and functional MRI. The participants in our studies are young adults (students), patients, and age matched controls. Currently, our studies focus on the how regularity affects the processing of incoming stimuli, why we sometimes miss information that we see in free viewing (using eye-fixation-related-potentials), and how visual information represented in the brain beyond the first moment of recognition.