ABSTRACT
In psychophysiology the assessment of physiological responses of the central (CNS) and the autonomic nervous system (ANS) is more popular than recording biochemical measures. Furthermore, anxiety as an emotional state has received much broader attention from research on neurochemistry, psychopharmacology, and psychoendocrinology in numerous animal and human experiments on stress and emotion than have the somatic correlates of trait anxiety. Therefore, it seems justified to devote a separate chapter to this neglected combination of fields of research and to concentrate on the role of biochemical variables for elucidating trait anxiety.
