The symptoms of functional neurological disorder (FND) are a product of its pathophysiology. The pathophysiology of FND is reflective of dysfunction within and across different brain circuits that, in turn, affects specific constructs. In this perspective article, we briefly review five constructs that are affected in FND: emotion processing (including salience), agency, attention, interoception, and predictive processing/inference. Examples of underlying neural circuits include salience, multimodal integration, and attention networks. The symptoms of each patient can be described as a combination of dysfunction in several of these networks and related processes. While we have gained a considerable understanding of FND, there is more work to be done, including determining how pathophysiological abnormalities arise as a consequence of etiologic biopsychosocial factors. To facilitate advances in this underserved and important area, we propose a pathophysiology-focused research agenda to engage government-sponsored funding agencies and foundations.
1 October 2008 in International Journal of Psychophysiology
The present research examined whether Asian-American (AA) versus European-American (EA) women differed in experiential, expressive, or autonomic physiological responding to a laboratory anger provocation and assessed the mediating role of values about emotional control. Results indicate that AA participants reported and behaviourally displayed less anger than EA participants, while there were no group differences in physiological responses. Observed differences in emotional responses were partially mediated by emotion control values, suggesting a potential mechanism for effects of cultural background on anger responding.