Brain Network Links to Mood Symptoms in Mild Cognitive Impairment
Author Information
Author(s): Parnika P. Saxena, Adam Turnbull, Daniel Kim, Barbara Sommer, F. Vankee Lin
Primary Institution: Stanford University
Hypothesis
How do brain network characteristics relate to affective symptoms in individuals with amnestic mild cognitive impairment (aMCI)?
Conclusion
The study found that changes in brain network topology are associated with the severity of affective symptoms in individuals with aMCI.
Supporting Evidence
- Lower participation coefficient was related to less severe affective symptoms.
- Higher clustering coefficient was associated with greater decreases in affective symptoms.
- Depression and apathy were significantly related to brain topology measures.
- Changes in brain topology were linked to changes in mood symptoms over time.
Takeaway
This study looked at how the way the brain is connected affects feelings like sadness and anxiety in older adults with early signs of memory problems.
Methodology
The study used cross-sectional and longitudinal methods to analyze brain topology and affective symptoms in a sample of older adults with aMCI.
Potential Biases
The study did not assess potential biases related to the homogeneity of the sample and the absence of a control group.
Limitations
The sample was small and homogenous, lacking a healthy control group, which may limit the generalizability of the findings.
Participant Demographics
Mean age of participants was 71 years, with 60% female and predominantly white.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website