Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Logopenic Aphasia

  • Nancy JohnsonEmail author
  • Beth Borosh
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_511

Synonyms

Primary progressive aphasia

Short Description or Definition

The term logopenic aphasia refers to a type of progressive aphasia characterized by word-finding problems and slowed rate of verbal output, grammatically simple but correct speech, and preserved comprehension. Patients with logopenic aphasia differ from those characterized as “nonfluent” by better conversational speech, and from those characterized as “semantic” by preserved comprehension.

Categorization

The term logopenic aphasia has been in the literature for many years, but was first operationalized by Gorno-Tempini (Gorno-Tempini et al. 2004), who proposed a classification system based on presenting language symptoms, distinctive patterns of brain atrophy and genetic factors. The logopenic subtype is defined as having the following characteristics:
  1. 1.

    Lowest score on tests of syntactic comprehension

     
  2. 2.

    Impaired naming performance (first percentile), but with preserved recognition

     
  3. 3.

    Impaired repetition

     
  4. 4.

    Imp...

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References and Readings

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Cognitive/Behavioral Neurology Center Northwestern Feinburg School of MedicineChicagoUSA