skin conductance responses.
What does this mean? "skin conductance response (SCR) is an indirect measure of sympathetic autonomic activity that is associated with both emotion and attention. In humans, the amplitude of SCRs is related to the level of arousal elicited by visual stimuli with either positive or negative emotional valence (Bradley et al. 2001). The amygdala is known to play a crucial role in the evaluation of emotionally relevant stimuli and in the subsequent initiation of appropriate autonomic responses" (Laine)
Works Cited: Laine, Chrisopher, et Al. "Behavioral Triggers of Skin Conductance Responses and Their Neural Correlates in the Primate Amygdala," 14 Jan. 2009, US National Library of Medicine National Institutes of Health, Journal of Neurophysiology.