"The results suggest that 18 sessions of LF rTMS in ASD results in increased cardiac vagal control and reduced sympathetic arousal."
"only after real HF-rTMS over the left DLPFC the physiological stress response was diminished, as indicated by a significant increase in HRV. No effects were found in the sham or right side stimulation condition."
"Results show that NIBS affects cardiovascular and autonomic nervous system activity, confirming a potential pathogenic brain-heart pathway to cardiovascular disease."
"HRV measures indicated that rTMS produced significantly greater reduction in the sympathetic: parasympathetic ratio suggesting improvement in sympathovagal balance. Conventional cardiac autonomic function tests did not differentiate the two therapy effects."
"Nevertheless given our a priori interest in the effect of VLPFC on autonomic function in DPD we carried out paired t-tests which showed a trend increase in patients' SFs following VLPFC"
"The implication of the right ventral PFC and left insular in DPD neuropathophysiology are particularly relevant to this study and autonomic function in general as sympathetic responses are lateralized to the right hemisphere (Oppenheimer et al., 1992
) with the left insular cortex involved in parasympathetic cardiovascular regulation, for example, acute left insular stroke disrupts the correlation between HR and BP (Oppenheimer et al., 1996
). The implication of limbic dysregulation modulated by PFC emotional reappraisal in the neuropathophysiology of DPD may have contributed to the current findings during pressor exercises and their additional central demands."
"Therefore, from a top-down perspective, the current OR findings could be due to limbic/autonomic centers, such as the dorsomedial hypothalamus (environmental cardiovascular responses (Dampney et al., 2002
), paraventricular neucleus of the hypothalamus [afferent homeostatic axis (Benarroch, 2005
)] or amygdala [sympathoadrenal responses (Janig and Habler, 2003
)] that function aberrantly during aversive emotional processing in DPD (Phillips et al., 2001
; Medford et al., 2006
; Lemche et al., 2007
) dysregulating downstream effector organ responses."
It is a "top-down" phenomena from the brain,-primarily the prefrontal cortex. Not a "bottom up" from the vagus. Have a nice yoga class. May the chakra system be with you.