In the last decade, cardiac vagal tone has emerged as a psychophysiological marker of many aspects of behavioral functioning in both children and adults. Research efforts during this time have produced an extensive list of vagal tone correlates that includes temperamental variables as well as both anxious/internalizing and disruptive/externalizing behaviors. This potentially confusing state of affairs is compounded by developmental shifts in vagal tone behavior relations that to date have not been elucidated. In this paper, the vagal tone literature is reviewed, and discrepancies, including the lack of specificity of vagal tone as a psychophysiological marker, are clarified. Such clarification requires that we (a) view vagal tone-behavior relations in developmental context, (b) juxtapose vagal tone-behavior relations in typical and atypical samples, and (c) consider the parasympathetic underpinnings of vagal tone as but one component in a broader model of autonomic nervous system functioning. Such a model is provided by combining Gray's motivational theory with Porges's polyvagal theory. Together these models account for behavioral and emotional differences in a diverse range of psychological disorders that are not differentiated by either model alone. Moreover, use of the integrated model offers a theory-driven approach to the study of autonomic nervous system-behavior relations.

https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954579401002012

Vagal tone, development, and Gray's motivational theory: toward an integrated model of autonomic nervous system functioning in psychopathology.

Gray's two-factor learning theory postulates a behavioral activation system (BAS), a behavioral inhibition system (BIS), and a nonspecific arousal system receiving excitatory inputs from both the BAS and the BIS. The BAS initiates behavior in response to conditioned stimuli for reward (approach) or for relieving nonpunishment (active avoidance). The BIS, which is viewed as an anxiety system, inhibits behavior in response to cues for punishment (passive avoidance) or frustrative nonreward (extinction), and its activity is decreased by the anti-anxiety drugs (alcohol, barbiturates, minor tranquilizers). Thus, the BIS is an arousal system which inhibits rather than energizes behavior.

A review of the literature suggests that heart rate (HR) is strongly associated with activity of the BAS. This interpretation subsumes the previous findings of cardiac-somatic coupling, incentive effects on HR, and increased HR in connection with active coping in the face of threat. Electrodermal activity (EDA), on the other hand, increases when there is an activation of the BIS. A consideration of these differing effects on HR and EDA permits a specification of conditions in which these two measures will or will not show directional fractionation.

With this theoretical model it is possible to relate the clinical features of psychopathy to the psychophysiological data with the single assumption that primary psychopaths have a deficient BIS. As a result, they show normal approach, active avoidance, and HR, but they suffer from poor passive avoidance and extinction with reduced EDA in response to threatening stimuli.

The three arousal model: implications of gray's two-factor learning theory for heart rate, electrodermal activity, and psychopathy.

Anxiety as an Emotional State

Theory and research on anxiety

Publisher Summary Cognitive dissonance occurs when a cognition that a person holds follows from the obverse of another. This chapter examines those relationships and proposes a new definition of cognitive dissonance. The state of the empirical findings to move toward a more comprehensive view of dissonance is reviewed in the chapter. When one understands what produces dissonance, it still needs further elaboration of the process to understand adequately the cognitive changes that ensue. The concept of dissonance must be differentiated into the concepts of dissonance arousal and dissonance motivation. It leads to the cognitive changes that are generally associated with cognitive dissonance. The integrative review of dissonance research is provided in the chapter. This survey narrows the scope of the theory, because it identifies the limited conditions under which dissonance effects are most likely to arise; cognitive dissonance is not the product of opposing cognitions. Dissonance theory concepts are applied to a broad range of phenomena so that the formulation remains exceedingly important.

Edward S. Katkin

Papers

Relationship between manifest anxiety and two indices of autonomic response to stress.

Energizing (dynamogenic) effect of cognitive dissonance on task performance.