Isolated brain

Brain kept alive in vitro outside of a body

An isolated brain is a brain kept alive in vitro, either by perfusion or by a blood substitute, often an oxygenated solution of various salts, or by submerging the brain in oxygenated artificial cerebrospinal fluid (CSF). It is the biological counterpart of brain in a vat. A related concept, attaching the brain or head to the circulatory system of another organism, is called a brain transplant or a head transplant. An isolated brain, however, is more typically attached to an artificial perfusion device rather than a biological body.

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