Rohrer JD, Rossor MN, Warren JD. Neologistic jargon aphasia and agraphia in primary progressive aphasia.
J Neurol Sci 2009;
277:155-9. [PMID:
19033077 PMCID:
PMC2633035 DOI:
10.1016/j.jns.2008.10.014]
[Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2008] [Revised: 10/07/2008] [Accepted: 10/08/2008] [Indexed: 11/24/2022]
Abstract
The terms 'jargon aphasia' and 'jargon agraphia' describe the production of incomprehensible language containing frequent phonological, semantic or neologistic errors in speech and writing, respectively. Here we describe two patients with primary progressive aphasia (PPA) who produced neologistic jargon either in speech or writing. We suggest that involvement of the posterior superior temporal-inferior parietal region may lead to a disconnection between stored lexical representations and language output pathways leading to aberrant activation of phonemes in neologistic jargon. Parietal lobe involvement is relatively unusual in PPA, perhaps accounting for the comparative rarity of jargon early in the course of these diseases.
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