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Processing of the arousal of subliminal and supraliminal emotional stimuli by the human amygdala

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Processing of the arousal of subliminal and supraliminal emotional stimuli by the human amygdala. / Gläscher, Jan; Adolphs, Ralph.

in: J NEUROSCI, Jahrgang 23, Nr. 32, 12.11.2003, S. 10274-82.

Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung

Harvard

Gläscher, J & Adolphs, R 2003, 'Processing of the arousal of subliminal and supraliminal emotional stimuli by the human amygdala', J NEUROSCI, Jg. 23, Nr. 32, S. 10274-82.

APA

Gläscher, J., & Adolphs, R. (2003). Processing of the arousal of subliminal and supraliminal emotional stimuli by the human amygdala. J NEUROSCI, 23(32), 10274-82.

Vancouver

Gläscher J, Adolphs R. Processing of the arousal of subliminal and supraliminal emotional stimuli by the human amygdala. J NEUROSCI. 2003 Nov 12;23(32):10274-82.

Bibtex

@article{b638e3d46f8e49ea97b305bdcf759bc0,
title = "Processing of the arousal of subliminal and supraliminal emotional stimuli by the human amygdala",
abstract = "The amygdala is known to play an important role in conscious and unconscious processing of emotional and highly arousing stimuli. Neuroanatomical evidence suggests that the amygdala participates in the control of autonomic responses, such as skin conductance responses (SCRs), elicited by emotionally salient stimuli, but little is known regarding its functional role in such control. We investigated this issue by showing emotional visual stimuli of varying arousal to patients with left (n = 12), right (n = 8), and bilateral (n = 3) amygdala damage and compared their results with those from 38 normal controls. Stimuli were presented both subliminally (using backward masking) and supraliminally under lateralized presentation to one visual hemifield. We collected SCRs as a physiological index of emotional responses. Subjects subsequently rated each stimulus on valence and arousal under free viewing conditions. There were two key findings: (1) impaired overall SCR after right amygdala damage; and (2) impaired correlation of SCR with the rated arousal of the stimuli after left amygdala damage. The second finding was strengthened further by finding a positive correlation between the evoked SCR magnitude and postsurgery amygdala volume, indicating impaired autonomic responses with larger tissue damage. Bilateral amygdala damage resulted in severe impairments on both of the above measures. Our results provide support for the hypothesis that the left and right amygdalae subserve different functions in emotion processing: the left may decode the arousal signaled by the specific stimulus, whereas the right may provide a global level of autonomic activation triggered automatically by any arousing stimulus.",
keywords = "Adult, Amygdala, Arousal, Autonomic Nervous System, Electrooculography, Emotions, Epilepsy, Female, Fixation, Ocular, Functional Laterality, Galvanic Skin Response, Humans, Male, Middle Aged, Neuropsychological Tests, Photic Stimulation, Recognition (Psychology), Reference Values, Regression Analysis, Subliminal Stimulation, Temporal Lobe",
author = "Jan Gl{\"a}scher and Ralph Adolphs",
year = "2003",
month = nov,
day = "12",
language = "English",
volume = "23",
pages = "10274--82",
journal = "J NEUROSCI",
issn = "0270-6474",
publisher = "Society for Neuroscience",
number = "32",

}

RIS

TY - JOUR

T1 - Processing of the arousal of subliminal and supraliminal emotional stimuli by the human amygdala

AU - Gläscher, Jan

AU - Adolphs, Ralph

PY - 2003/11/12

Y1 - 2003/11/12

N2 - The amygdala is known to play an important role in conscious and unconscious processing of emotional and highly arousing stimuli. Neuroanatomical evidence suggests that the amygdala participates in the control of autonomic responses, such as skin conductance responses (SCRs), elicited by emotionally salient stimuli, but little is known regarding its functional role in such control. We investigated this issue by showing emotional visual stimuli of varying arousal to patients with left (n = 12), right (n = 8), and bilateral (n = 3) amygdala damage and compared their results with those from 38 normal controls. Stimuli were presented both subliminally (using backward masking) and supraliminally under lateralized presentation to one visual hemifield. We collected SCRs as a physiological index of emotional responses. Subjects subsequently rated each stimulus on valence and arousal under free viewing conditions. There were two key findings: (1) impaired overall SCR after right amygdala damage; and (2) impaired correlation of SCR with the rated arousal of the stimuli after left amygdala damage. The second finding was strengthened further by finding a positive correlation between the evoked SCR magnitude and postsurgery amygdala volume, indicating impaired autonomic responses with larger tissue damage. Bilateral amygdala damage resulted in severe impairments on both of the above measures. Our results provide support for the hypothesis that the left and right amygdalae subserve different functions in emotion processing: the left may decode the arousal signaled by the specific stimulus, whereas the right may provide a global level of autonomic activation triggered automatically by any arousing stimulus.

AB - The amygdala is known to play an important role in conscious and unconscious processing of emotional and highly arousing stimuli. Neuroanatomical evidence suggests that the amygdala participates in the control of autonomic responses, such as skin conductance responses (SCRs), elicited by emotionally salient stimuli, but little is known regarding its functional role in such control. We investigated this issue by showing emotional visual stimuli of varying arousal to patients with left (n = 12), right (n = 8), and bilateral (n = 3) amygdala damage and compared their results with those from 38 normal controls. Stimuli were presented both subliminally (using backward masking) and supraliminally under lateralized presentation to one visual hemifield. We collected SCRs as a physiological index of emotional responses. Subjects subsequently rated each stimulus on valence and arousal under free viewing conditions. There were two key findings: (1) impaired overall SCR after right amygdala damage; and (2) impaired correlation of SCR with the rated arousal of the stimuli after left amygdala damage. The second finding was strengthened further by finding a positive correlation between the evoked SCR magnitude and postsurgery amygdala volume, indicating impaired autonomic responses with larger tissue damage. Bilateral amygdala damage resulted in severe impairments on both of the above measures. Our results provide support for the hypothesis that the left and right amygdalae subserve different functions in emotion processing: the left may decode the arousal signaled by the specific stimulus, whereas the right may provide a global level of autonomic activation triggered automatically by any arousing stimulus.

KW - Adult

KW - Amygdala

KW - Arousal

KW - Autonomic Nervous System

KW - Electrooculography

KW - Emotions

KW - Epilepsy

KW - Female

KW - Fixation, Ocular

KW - Functional Laterality

KW - Galvanic Skin Response

KW - Humans

KW - Male

KW - Middle Aged

KW - Neuropsychological Tests

KW - Photic Stimulation

KW - Recognition (Psychology)

KW - Reference Values

KW - Regression Analysis

KW - Subliminal Stimulation

KW - Temporal Lobe

M3 - SCORING: Journal article

C2 - 14614086

VL - 23

SP - 10274

EP - 10282

JO - J NEUROSCI

JF - J NEUROSCI

SN - 0270-6474

IS - 32

ER -