Impaired emotional biases in visual attention after bilateral amygdala lesion

Domínguez-Borràs, Judith; Moyne, Maëva; Saj̈, Arnaud; Guex, Raphaël; Vuilleumier, Patrik

doi:10.1016/j.neuropsychologia.2019.107292

Cited by 18 publications

(13 citation statements)

References 104 publications

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“…The ratings of familiarity and naturalness, as potential confounders, showed different patterns from the detection performance and emotional ratings, suggesting that they did not account for detection performance. The visual search task results are consistent with previous ndings that normal angry and happy expressions were more rapidly detected than their anti-expressions in healthy participants, and that the rapid detection of emotional expressions was impaired in bilateral amygdalalesioned patients compared with normal controls 13,14 . However, inconsistent ndings were reported with respect to the detection of emotional facial expressions by bilateral amygdala-lesioned patients, and no previous study has compared the effects of visual and emotional factors in this context.…”

Section: Discussionsupporting

confidence: 90%

“…A few previous neuropsychological studies have examined the neural substrates of this process, and found that a bilateral amygdala lesion impaired the detection of emotional facial expressions in visual search tasks 13,14 . Speci cally, Bach et al 13 tested two patients with bilateral amygdala damage, and a group of normal controls, on a visual search task in which participants searched for an angry target among a crowd of happy expressions or a happy target among a crowd of angry expressions.…”

Section: Introductionmentioning

confidence: 99%

“…Although controls detected angry expressions more rapidly than happy ones, the patients showed the opposite pattern, detecting happy expressions more rapidly. Domínguez-Borràs et al 14 tested a patient with bilateral amygdala damage, and a control group, on a visual search task in which participants searched for an emotional (fearful or happy) facial expression or a neutral facial expression among a crowd of neutral facial expressions. Whereas controls detected facial expressions of fear and happiness more rapidly than neutral expressions, the patient did not.…”

Section: Introductionmentioning

confidence: 99%

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Impairment of emotional expression detection after unilateral amygdala resection

Sato

Usui

Sawada

et al. 2021

Preprint

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Detecting facial emotional expressions is an initial and indispensable for face-to-face communication. Neuropsychological studies on the neural substrates of this process have shown that bilateral amygdala lesions impaired the detection of emotional facial expressions. However, the findings were inconsistent, possibly due to the limited number of patients examined. Furthermore, this processing is based on emotional or visual factors of facial expressions remains unknown. To investigate this issue, we tested the group of patients (n = 23) with unilateral resection of anterior temporal lobe structures, including the amygdala, and compared their performance under resected and intact hemisphere stimulation conditions. The patients were asked to detect normal facial expressions of anger and happiness, and artificially created anti-expressions, among a crowd with neutral expressions. Reaction times were shorter to detect normal versus anti-expressions when the target faces were presented to the contralateral visual field (i.e., stimulation of the intact hemisphere) than to the ipsilateral visual field (i.e., stimulation of the resected hemisphere). Our findings suggest that the amygdala plays an essential role in the detection of emotional facial expressions, according to the emotional significance of the expressions.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impairment of emotional expression detection after unilateral amygdala resection

Sato

Usui

Sawada

et al. 2021

Preprint

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show abstract

“…A few previous neuropsychological studies have examined the neural substrates of this process, and found that a bilateral amygdala lesion impaired the detection of emotional facial expressions in visual-search tasks 15 , 16 . Specifically, Bach et al 15 tested two patients with bilateral amygdala damage, and a group of healthy controls, on a visual-search task in which participants searched for an angry target among an crowd of happy expressions or a happy target among a crowd of angry expressions.…”

Section: Introductionmentioning

confidence: 99%

“…Although controls detected angry expressions more rapidly than happy ones, the patients showed the opposite pattern, detecting happy expressions more rapidly. Domínguez-Borràs et al 16 tested a patient with bilateral amygdala damage, and a control group, on a visual-search task in which participants searched for an emotional (fearful or happy) facial expression or a neutral facial expression among a crowd of neutral facial expressions. Whereas controls detected facial expressions of fear and happiness more rapidly than neutral expressions, the patient did not.…”

Section: Introductionmentioning

confidence: 99%

Impairment of emotional expression detection after unilateral medial temporal structure resection

Sato¹,

Usui

Sawada

et al. 2021

Sci Rep

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Detecting emotional facial expressions is an initial and indispensable component of face-to-face communication. Neuropsychological studies on the neural substrates of this process have shown that bilateral amygdala lesions impaired the detection of emotional facial expressions. However, the findings were inconsistent, possibly due to the limited number of patients examined. Furthermore, whether this processing is based on emotional or visual factors of facial expressions remains unknown. To investigate this issue, we tested a group of patients (n = 23) with unilateral resection of medial temporal lobe structures, including the amygdala, and compared their performance under resected- and intact-hemisphere stimulation conditions. The participants were asked to detect normal facial expressions of anger and happiness, and artificially created anti-expressions, among a crowd with neutral expressions. Reaction times for the detection of normal expressions versus anti-expressions were shorter when the target faces were presented to the visual field contralateral to the intact hemisphere (i.e., stimulation of the intact hemisphere; e.g., right visual field for patients with right hemispheric resection) compared with the visual field contralateral to the resected hemisphere (i.e., stimulation of the resected hemisphere). Our findings imply that the medial temporal lobe structures, including the amygdala, play an essential role in the detection of emotional facial expressions, according to the emotional significance of the expressions.

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Amygdala function in emotion, cognition, and behavior

Domínguez-Borràs

Vuilleumier

2022

Handbook of Clinical Neurology

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Impaired emotional biases in visual attention after bilateral amygdala lesion

Cited by 18 publications

References 104 publications

Impairment of emotional expression detection after unilateral amygdala resection

Impairment of emotional expression detection after unilateral amygdala resection

Impairment of emotional expression detection after unilateral medial temporal structure resection

Amygdala function in emotion, cognition, and behavior

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