P Ekman

Type A behavior pattern: facial behavior and speech components.

P. Ekman, W. Friesen, M. Chesney, 1990, Psychosomatic medicine.

The asymmetry of facial actions is inconsistent with models of hemispheric specialization.

P. Ekman, J. C. Hager, P Ekman, 1985, Psychophysiology.

Facial areas and emotional information.

P. Ekman, J. Boucher, P Ekman, 1975, The Journal of communication.

Asymmetry in facial expression.

P. Ekman, P Ekman, 1980, Science.

Is the startle reaction an emotion?

P. Ekman, W. Friesen, R. C. Simons, 1985, Journal of personality and social psychology.

A tool for the analysis of motion picture film or video tape.

P. Ekman, W. Friesen, P Ekman, 1969, The American psychologist.