The goal is the process: to enjoyHARPER, R. A.Psychotherapy in private practice. 1984, Vol 2, Num 2, pp 21-26, issn 0731-7158Article

Psychogenic muscle tension: the significance of motivation and negative affect in perceptual-cognitive task performanceRIMEHAUG, T; SVEBAK, S.International journal of psychophysiology. 1987, Vol 5, Num 2, pp 97-106, issn 0167-8760Article

Electrophysiological changes elicited by auditory stimuli given a positive or negative value: a study comparing anhedonic with hedonic subjectsPIERSON, A; RAGOT, R; RIPOCHE, A et al.International journal of psychophysiology. 1987, Vol 5, Num 2, pp 107-123, issn 0167-8760Article