TY - CHAP M1 - Book, Section TI - Confusional States A1 - Greenberg, David A. A1 - Aminoff, Michael J. A1 - Simon, Roger P. PY - 2021 T2 - Clinical Neurology, 11e AB - A confusional state, also referred to as encephalopathy or delirium, is a condition in which the level of consciousness is depressed, but to a lesser extent than in coma (unarousable unresponsiveness; see Chapter 3, Coma). In confusional states, responses to stimulation are at least semi-purposeful, whereas in coma, patients fail to respond to even painful stimulation or do so only in reflex fashion. Thus, the difference between a confusional state and coma is largely one of degree, and the causes overlap extensively. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - neurology.mhmedical.com/content.aspx?aid=1182388910 ER -