 The accessibility of information is then defined as its potential access by other systems. Dehaene (Dehaene et al. 2006) introduces a threefold distinction: (1) neural states that carry information that is not accessible (subliminal information); (2) states that carry information that is accessible but not accessed (not in the workspace; preconscious information); and (3) states whose information is accessed by the workspace (conscious information) and is globally accessible to other systems. So, a necessary and sufficient condition for a state’s being conscious rather than not is the access of a state or content by the workspace, making that state or content accessible to other systems. Hence, only states in (3) are conscious.