Im not sure, if what the research here observed is real, stand-alone "neuro" genesis. Several animal species, in times of hardship (like migration) reform thei

Im not sure, if what the research here observed is real, stand-alone "neuro" genesis. Several animal species, in times of hardship (like migration) reform their brains, by forgetting unimportant memories or reduce brain area dedicated to now unimportant skills. Quite similar to a stroke victim, that relearns speech, by "re-purposing" a different brain area. Fasting indicates a food scarce environment, so the brain might do the same thing every body does - and reduce calorie consumption in all areas, including the brain. So the "reconnection" might just be a side-effect of the "down-sizing".