 Scientists primarily study phenomenal consciousness through subjective reports. We can treat reports in neuroscience as conceptual in that they express how the subject recognizes things to be, whether regarding what they perceive (perceptual or observational reports, as in psychophysics) or regarding what mental states they are in (introspective reports). A report’s conceptual content can be conveyed in words or through another overt behavior whose significance is fixed within an experimental context (e.g., pressing a button to indicate that a stimulus is present or that one sees it). Subjective reports of conscious states draw on distinctively first-personal access to that state. The subject introspects.