False recognition of incidentally learned pictures and words in primary progressive aphasia

Emily Rogalski*, Diana Blum, Alfred Rademaker, Sandra Weintraub

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Recognition memory was tested in patients with primary progressive aphasia (PPA), a language based dementia with relative preservation of memory for at least the first 2 years. The goal of the study was two-fold: (1) to compare true and false recognition rates for words versus pictures in patients with PPA and cognitively intact controls and (2) to determine if the semantic relatedness of distracters-to-targets influences recognition memory performance. Overall, performance of PPA patients was worse for words than pictures. PPA patients and healthy elderly controls showed similar recognition rates for studied items. However, the patients had significantly more false alarms than controls, particularly to semantically related items. This suggests that the aphasia in PPA patients contributes to their difficulty in selecting among items within a semantic class.

Original languageEnglish (US)
Pages (from-to)368-377
Number of pages10
Issue number2
StatePublished - 2007


  • Dementia
  • Frontotemporal dementia
  • Language
  • Recognition memory
  • Semantic processing

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience
  • Behavioral Neuroscience


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