Those who watched the longer-form content saw better synchronisation of the superior parietal lobulem, a part of the brain responsible for attention and integrating sensory and visual inputs. This was also true of the precuneus, which orchestrates things like self-awareness, episodic memory, and making sense of visual events.
Article source: https://www.huffingtonpost.co.uk/entry/short-form-video-learning-issue_uk_6a4ccb63e4b0a7adb6d76482