Knott, J R Anxiety, stress and contingent negative variation (CNV). [electronic resource] - Electroencephalography and clinical neurophysiology Mar 1968 - 286-7 p. digital Publication Type: Journal Article ISSN: 0013-4694 Subjects--Topical Terms: AnxietyCerebral Cortex--physiologyElectroencephalographyElectrophysiologyGalvanic Skin ResponseHumansReaction TimeStress, Physiological