Increased sensitivity of pial arterioles to a vasoconstrictor, following reduction in perfusion pressure.
D000818:Animals; D001158:Arteries / Q000187:drug effects*; D001464:Barium / Q000008:administration & dosage*; D001794:Blood Pressure / Q000187:drug effects; D002561:Cerebrovascular Disorders / Q000503:physiopathology
D001464:Barium