BLACKOUT By N., Pam M.S. - April 7, 2013 Loss of consciousness resulting from physiological changes that lowers the supply of oxygen to the brain. It is also amnesia caused by alcohol. BLACKOUT: "Joe's blackout lasted a few seconds." Related Psychology Terms BLACKOUT GRAY-OUT GRAVITY-INDUCED LOSS OF CONSCIOUSNESS (G-LOC) TRAUMATIC BRAIN INJURY (TB1) ANTEROGRADE AMNESIA PSYCHOGENIC HALLUCINATION BRAIN CONCUSSION BLACKOUT LEVEL ASTEREOGNOSIS G-LOC Cite this page: N., Pam M.S., "BLACKOUT," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/blackout-2/ (accessed November 25, 2020).