Indices of sympathetic (preejection period) and parasympathetic (heart rate variability) cardiac drive were obtained by impedance- and electrocardiography Salivary cortisol was used to index HPA activity Questionnaires assessed learn more affective responses Results: Affective responses (shame/embarrassment, anxiety, negative affect, and self-esteem), cortisol,
heart rate, sympathetic and parasympathetic activation all differentiated evaluative from nonevaluative task conditions (p < .001) The largest effect sizes were observed for cardiac autonomic responses Physiological reactivity increased in parallel with increasing audience size (p < 001) An increase in cortisol was predicted by sympathetic activation during the task (p < 001), but not by affective responses. Conclusion: It Would seem that SET determines the magnitude, rather than the pattern, of physiological activation. This potential to perturb broadly multiple physiological systems may help explain why social stress has been associated with a range of health outcomes We propose a threshold-activation
model as it physiological explanation for why engaging stressors, such as those involving social evaluation or uncontrollability, may seem to induce selectively cortisol release”
“Language, believed to have originated check details from actions, not only Resveratrol functions as a medium to access other minds, but it also helps us commit actions and enriches
our social life. This fMRI study investigated the semantic and neural representations of actions and mental states. We focused mainly on language semantics (comprehending sentences with action words versus those with mental state words). While in an fMRI scanner, twenty-four healthy, right-handed adult volunteers read a series of sentences with a verb depicting either a mental state (e.g., deceive, persuade) or an action (e.g., punch, kick), and answered a comprehension question that followed. Overall, this task showed brain activation in the left inferior frontal gyrus and in the left posterior superior temporal sulci. While comprehending sentences with mental state terms, participants showed greater activation in left orbitofrontal, and in left precuneus areas. On the other hand, the action sentences recruited more primary motor, left inferior parietal, bilateral occipital, right superior temporal, and right inferior frontal areas. The findings of this study underscore the role of motor and visuospatial involvement in action word representation in the human brain. (C) 2012 Elsevier Ltd. All rights reserved.