Intellectual death is not brain death.
Wijdicks
Eelco F M
EF
D001926:Brain Death / Q000175:diagnosis*; D020520:Brain Infarction / Q000150:complications / Q000175:diagnosis*; D003072:Cognition Disorders / Q000175:diagnosis / Q000209:etiology*; D003937:Diagnosis, Differential; D006801:Humans