Wernicke conundrum is misinterpreted.

According to the literature on PPA, however, word comprehension is impaired when peak cortical neurodegeneration (i.e. atrophy) is centred in the anterior temporal lobe (ATL) rather than PTL. If ATL atrophy causes comprehension impairment because it deafferents PTL, where Wernicke's area is located, why doesn't atrophy in PTL lead to the same outcome? The article by Matchin, Ouden, Hickok, Hillis, Bonilha and Fridriksson[1] is written to discredit our work on the anatomy of word comprehension in patients with primary progressive aphasia (PPA).[2],[3] For reasons stated below, we believe that the authors have missed their target by a long shot. [Extracted from the article]