Olfactory and Visuospatial Learning and Memory Performance in Two Strains of Alzheimer's Disease Model Mice—A Longitudinal Study
2011

Olfactory and Visuospatial Learning in Alzheimer's Disease Model Mice

Sample size: 9 publication 10 minutes Evidence: moderate

Author Information

Author(s): Matthew Phillips, Erik Boman, Hanna Österman, David Willhite, Matthias Laska

Primary Institution: Yale University School of Medicine

Hypothesis

Do two strains of Alzheimer's disease model mice exhibit differences in olfactory and visuospatial learning and memory performance compared to age-matched controls?

Conclusion

The study found that the two strains of Alzheimer's disease model mice do not show olfactory impairment but are impaired in visuospatial learning compared to control mice.

Supporting Evidence

  • The AD model mice did not show olfactory impairment consistent with human Alzheimer's disease.
  • Both strains of AD mice performed significantly poorer than controls in visuospatial learning tasks.
  • Age-related changes in olfactory performance were observed in both AD and control mice.

Takeaway

Researchers tested mice that model Alzheimer's disease to see how well they could smell and remember things. They found that while the mice could smell just fine, they had trouble remembering where things were.

Methodology

The study used a longitudinal design to assess olfactory and visuospatial learning in two strains of Alzheimer's disease model mice and compared their performance to age-matched controls.

Potential Biases

Potential bias due to the small number of animals tested and the specific strains used.

Limitations

The study had a small sample size and focused only on two strains of Alzheimer's disease model mice.

Participant Demographics

Male adult mice of three different strains: Swede mice, Tau mice, and control mice.

Statistical Information

P-Value

p<0.01

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0019567

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