title: Assessment of mental effort by means of slow brain potentials.
authors.affiliation: Federal Institute for Occupational Health, Berlin, Germany.
authors.forename: G
authors.initials: G
authors.lastname: Freude
authors.forename: P
authors.initials: P
authors.lastname: Ullsperger
authors.forename: M
authors.initials: M
authors.lastname: Mölle
mesh_terms: D000328:Adult; D003265:Contingent Negative Variation / Q000502:physiology; D004569:Electroencephalography; D005071:Evoked Potentials / Q000502:physiology*; D006801:Humans; D008606:Mental Processes / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology; D011930:Reaction Time / Q000502:physiology