Mental and Social Aspects
In the field of psychophysiology, there is interest in HRV. For example, HRV is related to emotional arousal. High-frequency (HF) activity has been found to decrease under conditions of acute time pressure and emotional strain and elevated state anxiety, presumably related to focused attention and motor inhibition. HRV has been shown to be reduced in individuals reporting a greater frequency and duration of daily worry. In individuals with post-traumatic stress disorder (PTSD), HRV and its HF component (see below) is reduced compared to controls whilst the low-frequency (LF) component is elevated. Furthermore, unlike controls, PTSD patients demonstrated no LF or HF reactivity to recalling a traumatic event.
The Polyvagal Theory derives from a psychophysiologic imputation of importance to HRV. This theory emphasizes the role of heart rate variability in understanding the magnitude and nature of vagal outflow to the heart. This theory decomposes heart rate variability based on frequency domain characteristics with an emphasis on respiratory sinus arrhythmia and its transmission by a neural pathway that is distinct from other components of HRV. There is anatomic and physiological evidence for a polyvagal control of the heart. Several publications outline the Polyvagal Theory in detail.
Read more about this topic: Heart Rate Variability
Famous quotes containing the words mental, social and/or aspects:
“All that remains to the mother in modern consumer society is the role of scapegoat; psychoanalysis uses huge amounts of money and time to persuade analysands to foist their problems on to the absent mother, who has no opportunity to utter a word in her own defence. Hostility to the mother in our societies is an index of mental health.”
—Germaine Greer (b. 1939)
“Becoming more flexible, open-minded, having a capacity to deal with change is a good thing. But it is far from the whole story. Grandparents, in the absence of the social institutions that once demanded civilized behavior, have their work cut out for them. Our grandchildren are hungry for our love and approval, but also for standards being set.”
—Eda Le Shan (20th century)
“... of all the aspects of social misery nothing is so heartbreaking as unemployment ...”
—Jane Addams (1860–1935)