Left temporal lobe? It would be good to have a list for the mayo doctors on what cognitive functions are declining and how. Such as finding words or other left temporal lobe hits. How is your short compared to long-term memory recall, and any other changes that may or may not be related (balance, emotions, ...anything different). Any changes in your EEG or MRI compared to the past? Would cognitive therapy be useful for you? My moderate TBI was 33 years ago and it nailed by left temporal and basal frontal lobes; I haven't noticed any declines yet other than age associated (I'm 70), and some minor neuropathy.