“When having a tantrum and in a state of intense dysregulation, kids aren’t in the ‘thinking part’ of their brain,” Langston continued. “The amygdala has been activated, emotions have taken over. So, an abrupt shift, such as shouting ‘Jessica,’ disrupts the brain activity. It’s like a reset for their little nervous systems. Sometimes all we need is a break, even just for a few seconds, to help us reregulate.”
Article source: https://www.huffingtonpost.co.uk/entry/jessica-toddler-trend_uk_69f47be7e4b0510ddb7c5d7d