Primary progressive aphasias are rare younger-onset dementias. As the label denotes, these dementias are characterised clinically by marked changes in language skills. Evidence over the years has shown that individuals with primary progressive aphasia experience widespread cognitive and behavioural changes that extend beyond language. This evidence, however, seems to be largely ignored or downplayed. This article proposes that linguistic relativity which induces a cognitive bias may be responsible for this omission; it also indicates that a revision of the current diagnostic criteria may need to be revised.

中文翻译：

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2022 年 ASSBI 总统致辞。对语言和原发性进行性失语的思考

原发性进行性失语症是一种罕见的年轻型痴呆症。正如标签所示，这些痴呆症的临床特征是语言技能的显着变化。多年来的证据表明，患有原发性进行性失语症的人会经历广泛的认知和行为变化，而这些变化超出了语言范围。然而，这一证据似乎在很大程度上被忽视或淡化了。本文提出，导致认知偏差的语言相对性可能是造成这种遗漏的原因；它还表明可能需要修改当前诊断标准的修订版。