here is the summary of your links..
that first abstract is almost meaningless... and does not seem to support any real conclusion... relatives of those with depression have more grey matter in the amygdala? "Larger gray matter volume in healthy relatives of MDD patients point to a possible vulnerability mechanism in MDD etiology and therefore extend knowledge in the field of high-risk approaches in MDD."
the second and third study is the same study of 7 to 9 year olds.
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Below is a summary of some of the findings I linked to in the past.
https://en.wikipedia.org/wiki/Amygdala
Social interaction[edit]
Amygdala volume correlates positively with both the size (the number of contacts a person has) and the complexity (the number of different groups to which a person belongs) of social networks.[57][58] Individuals with larger amygdalae had larger and more complex social networks. They were also better able to make accurate social judgments about other persons' faces.[59] The amygdala's role in the analysis of social situations stems specifically from its ability to identify and process changes in facial features. It does not, however, process the direction of the gaze of the person being perceived.[60][61]
The amygdala is also thought to be a determinant of the level of a person's emotional intelligence. It is particularly hypothesized that larger amygdalae allow for greater emotional intelligence, enabling greater societal integration and cooperation with others.[62]
The amygdala processes reactions to violations concerning personal space. These reactions are absent in persons in whom the amygdala is damaged bilaterally.[63]Furthermore, the amygdala is found to be activated in fMRI when people observe that others are physically close to them, such as when a person being scanned knows that an experimenter is standing immediately next to the scanner, versus standing at a distance.[63]
that first abstract is almost meaningless... and does not seem to support any real conclusion... relatives of those with depression have more grey matter in the amygdala? "Larger gray matter volume in healthy relatives of MDD patients point to a possible vulnerability mechanism in MDD etiology and therefore extend knowledge in the field of high-risk approaches in MDD."
the second and third study is the same study of 7 to 9 year olds.
----
Below is a summary of some of the findings I linked to in the past.
https://en.wikipedia.org/wiki/Amygdala
Social interaction[edit]
Amygdala volume correlates positively with both the size (the number of contacts a person has) and the complexity (the number of different groups to which a person belongs) of social networks.[57][58] Individuals with larger amygdalae had larger and more complex social networks. They were also better able to make accurate social judgments about other persons' faces.[59] The amygdala's role in the analysis of social situations stems specifically from its ability to identify and process changes in facial features. It does not, however, process the direction of the gaze of the person being perceived.[60][61]
The amygdala is also thought to be a determinant of the level of a person's emotional intelligence. It is particularly hypothesized that larger amygdalae allow for greater emotional intelligence, enabling greater societal integration and cooperation with others.[62]
The amygdala processes reactions to violations concerning personal space. These reactions are absent in persons in whom the amygdala is damaged bilaterally.[63]Furthermore, the amygdala is found to be activated in fMRI when people observe that others are physically close to them, such as when a person being scanned knows that an experimenter is standing immediately next to the scanner, versus standing at a distance.[63]
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