French researchers at the Washington meeting described experiments in laboratory rats with a brain syndrome resembling Alzheimer's disease.
This index distinguishes five different levels of organic brain syndrome ranging from severe to subclinical.
They were also slightly more often diagnosed as suffering from alcoholism, schizophrenia, hysteria and chronic brain syndrome.
He said it was probably "post-alcohol brain syndrome."
The majority of the patients prior to 1960 were admitted for symptoms of organic brain syndrome.
Acute brain syndromes may be reversible by treating the cause.
Chronic brain syndrome afflicts only about one out of 20 people over 65, and it is not inevitable even in advanced age.
Marie died in November 1986 of chronic brain syndrome.
A more specific medical term for the acute subset of organic brain syndromes is delirium.
Upon recovery of consciousness the subject is left with a transient acute brain syndrome.