May 18, 2016

Neuropathologic Associations of Learning and Memory in Primary Progressive Aphasia

JAMA Neurology
Stephanie KielbSandra Weintraub


The dementia syndrome of primary progressive aphasia (PPA) can be caused by 1 of several neuropathologic entities, including forms of frontotemporal lobar degeneration (FTLD) or Alzheimer disease (AD). Although episodic memory is initially spared in this syndrome, the subtle learning and memory features of PPA and their neuropathologic associations have not been characterized. To detect subtle memory differences on the basis of autopsy-confirmed neuropathologic diagnoses in PPA. Retrospective analysis was conducted at the Northwestern Cognitive Neurology and Alzheimer's Disease Center in August 2015 using clinical and postmortem autopsy data that had been collected between August 1983 and June 2012. Thirteen patients who had the primary clinical diagnosis of PPA and an autopsy-confirmed diagnosis of either AD (PPA-AD) or a tau variant of FTLD (PPA-FTLD) and 6 patients who had the clinical diagnosis of amnestic dementia and autopsy-confirmed AD (AMN-AD) were included. Scores on the effortless learning, delayed retrieval, and retention conditions of the Three Words Three Shapes test, a specialized measure of verbal and nonverbal episodic memory. The PPA-FTLD (n = 6), PPA-AD (n = 7), and AMN-AD (n = 6) groups did not differ by dem...Continue Reading

  • References
  • Citations1


  • We're still populating references for this paper, please check back later.
  • References
  • Citations1


Mentioned in this Paper

Familial Alzheimer Disease (FAD)
Memory Loss
Abnormal Degeneration
Primary Progressive Aphasia (Disorder)
TDP-43 protein, human
Memory for Designs Test
Severity of Illness Index

Related Feeds


Aphasia affects the ability to process language, including formulation and comprehension of language and speech, as well as the ability to read or write. Here is the latest research on aphasia.

Alzheimer's Disease: Tau & TDP-43

Alzheimer's disease is a chronic neurodegenerative disease. This feed focuses on the underlying role of Tau proteins and TAR DNA-binding protein 43, as well as other genetic factors, in Alzheimer's.

Alzheimer's Disease: Early Markers

Alzheimer's disease is a chronic neurodegenerative disease. This feed focuses on early markers, as well as environmental, pharmacological, and drug-response biomarkers associated with this disease.

Alzheimer's Disease: Neuroimaging

Alzheimer's disease (AD) is a chronic neurodegenerative disease. Here is the latest research on neuroimaging modalities, including magnetic resonance imaging and positron emission tomography, in AD.