Amygdala Activation in Cognitive Task fMRI Varies with Individual Differences in Cognitive Traits.
Cogn Affect Behav Neurosci
; 21(1): 254-264, 2021 02.
Article
en En
| MEDLINE
| ID: mdl-33683660
ABSTRACT
The amygdala has been implicated in processing threat and learning fear. However, the amygdala also responds to motivationally relevant stimuli even in the absence of explicit emotional content. We investigated the relationship among amygdala activation, cognitive and emotional factors, and fMRI task data in participants from the Young Adult Human Connectome Project. We expected to see variation in amygdala activation that corresponded with variation in traits that could affect the salience of task related stimuli (i.e., internalizing symptoms and fearful faces). We found no relationship between amygdala activation during face viewing and emotion related traits. However, amygdala activation under working memory load was negatively correlated with fluid intelligence and reading level. There also was a negative relationship between task performance and activation in the amygdala. The observed relationship suggests that the role of amygdala is not limited to the processing of emotional content of incoming information but is instead related to salience, which can be influenced by individual differences.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Imagen por Resonancia Magnética
/
Individualidad
Límite:
Adult
/
Humans
Idioma:
En
Revista:
Cogn Affect Behav Neurosci
Asunto de la revista:
CIENCIAS DO COMPORTAMENTO
/
NEUROLOGIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Estados Unidos