Historically, psychophysiological measures have made an invaluable contribution to personality psychology. Questions regarding interindividual differences and intraindividual changes in emotion, cognition, motivation, arousal, and attention are core topics within personality psychology, and these questions are particularly amenable to a psychophysiological approach.
Diamond, L., & Otter-Henderson, K. D. (2007). Physiological measures, in Handbook of research methods in personality psychology. Guilford Press, 370-88.
