By Dobelli, Rolf, Rolf Dobelli
By Carlson, Neil R., Neil R. Carlson
By Deb Dana, Stephen W. Porges (University of North Carolina)
By Prof Paul Ekman (Professor of Psychology)
By Paul Broks
By Thomas Armstrong
By James L. McGaugh
By Michele Siegel, Judith Brisman, Margot Weinshel
By Steven Kotler
By James V. Stone (The University of Sheffield)
By Gabrielle Bernstein
By Adrian Wells (University of Manchester, UK)
By Victoria Biggs, Mary Colley, Amanda Kirby
By Karen Horney
By David Eagleman