» Articles » PMID: 19144740

Behavioral Triggers of Skin Conductance Responses and Their Neural Correlates in the Primate Amygdala

Overview
Journal J Neurophysiol
Specialties Neurology
Physiology
Date 2009 Jan 16
PMID 19144740
Citations 41
Authors
Affiliations
Soon will be listed here.
Abstract

The amygdala plays a crucial role in evaluating the emotional significance of stimuli and in transforming the results of this evaluation into appropriate autonomic responses. Lesion and stimulation studies suggest involvement of the amygdala in the generation of the skin conductance response (SCR), which is an indirect measure of autonomic activity that has been associated with both emotion and attention. It is unclear if this involvement marks an emotional reaction to an external stimulus or sympathetic arousal regardless of its origin. We recorded skin conductance in parallel with single-unit activity from the right amygdala of two rhesus monkeys during a rewarded image viewing task and while the monkeys sat alone in a dimly lit room, drifting in and out of sleep. In both experimental conditions, we found similar SCR-related modulation of activity at the single-unit and neural population level. This suggests that the amygdala contributes to the production or modulation of SCRs regardless of the source of sympathetic arousal.

Citing Articles

An fMRI study examining the role of the extended amygdala and amygdala in emotion and inhibitory control in native versus second language processing.

Sugita-McEown M, Makuuchi M, Naoe T, Ellinger J, Oga-Baldwin W, McEown K PLoS One. 2024; 19(11):e0310129.

PMID: 39495718 PMC: 11534241. DOI: 10.1371/journal.pone.0310129.


Psychopathy, pain, and pain empathy: A psychophysiological study.

Alshukri S, Lyons M, Blinkhorn V, Munoz L, Fallon N PLoS One. 2024; 19(7):e0306461.

PMID: 38968264 PMC: 11226074. DOI: 10.1371/journal.pone.0306461.


The importance of a multidimensional approach to the preclinical study of major depressive disorder and apathy.

Jackson M, Robinson E Emerg Top Life Sci. 2022; 6(5):479-489.

PMID: 36413089 PMC: 9788393. DOI: 10.1042/ETLS20220004.


Alpha-band EEG suppression as a neural marker of sustained attentional engagement to conditioned threat stimuli.

Bacigalupo F, Luck S Soc Cogn Affect Neurosci. 2022; 17(12):1101-1117.

PMID: 35434733 PMC: 9766959. DOI: 10.1093/scan/nsac029.


Representation of Fear of Heights by Basolateral Amygdala Neurons.

Liu J, Lin L, Wang D J Neurosci. 2021; 41(5):1080-1091.

PMID: 33436527 PMC: 7880278. DOI: 10.1523/JNEUROSCI.0483-20.2020.


References
1.
Williams L, Phillips M, Brammer M, Skerrett D, Lagopoulos J, Rennie C . Arousal dissociates amygdala and hippocampal fear responses: evidence from simultaneous fMRI and skin conductance recording. Neuroimage. 2001; 14(5):1070-9. DOI: 10.1006/nimg.2001.0904. View

2.
BAGSHAW M, Pribram J . Effect of amygdalectomy on stimulus threshold of the monkey. Exp Neurol. 1968; 20(2):197-202. DOI: 10.1016/0014-4886(68)90092-7. View

3.
Yamazaki K, Tajimi T, Okuda K, Nimi Y . Psychophysiological significance of skin potential activity in monkeys. Psychophysiology. 1972; 9(6):620-3. DOI: 10.1111/j.1469-8986.1972.tb00772.x. View

4.
Davis M, Whalen P . The amygdala: vigilance and emotion. Mol Psychiatry. 2001; 6(1):13-34. DOI: 10.1038/sj.mp.4000812. View

5.
Nikula R . Psychological correlates of nonspecific skin conductance responses. Psychophysiology. 1991; 28(1):86-90. DOI: 10.1111/j.1469-8986.1991.tb03392.x. View