title: Editorial: Using neurophysiological signals that reflect cognitive or affective state.
authors.affiliation: TNO Human Factors Soesterberg, Netherlands ; Human Media Interaction, University of Twente Enschede, Netherlands.
authors.forename: Jan B F
authors.initials: JB
authors.lastname: van Erp
authors.affiliation: TNO Human Factors Soesterberg, Netherlands.
authors.forename: Anne-Marie
authors.initials: AM
authors.lastname: Brouwer
authors.affiliation: Team PhyPA, Technical University Berlin Berlin, Germany.
authors.forename: Thorsten O
authors.initials: TO
authors.lastname: Zander
keywords: Brain-Computer Interface; EEG; affective state; cognitive state; mental state; neurophysiology; physiological computing; psychophysiology