TARDBP and frontotemporal dementia: The amygdala is a key structure for behavior, expression and interpretation of emotions, and eating habits [40], all of which are potentially impaired in FTD and FTD-ALS [41], and it is not surprising that the amygdala and other limbic regions (such as the insular cortex and the hippocampus) are common sites of deposit of TDP-43 proteinopathy [42].