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Amygdala stimulates stress responses in adults.

Still, monkeys with neonatal amygdala damage remain competent in interacting with others within their large social organizations. These findings are in keeping with reports of human being patients with harm to the amygdala, Raper says. ‘We speculate that the rich social environment offered to the monkeys promotes compensatory mechanisms in cortical regions implicated in the regulation of public behavior,’ she says. ‘But neonatal amygdala damage seems more detrimental for the development of stress neuroendocrine circuits in other areas of the brain.’ The investigators plan to follow the pets into adulthood to investigate the long-term ramifications of early amygdala harm on stress hormones, behavior and physiological systems possibly affected by chronically high cortisol amounts, such as immune, growth and reproductive functions..