2018 study: thalamus and hippocampus in MS episodic memory

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2018 study: thalamus and hippocampus in MS episodic memory

Postby jimmylegs » Sun Sep 30, 2018 4:21 am

The role of the thalamus and hippocampus in episodic memory performance in patients with multiple sclerosis
http://journals.sagepub.com/doi/abs/10. ... 8518760716

Abstract
Background:
Episodic memory loss is one of the most common cognitive symptoms in patients with multiple sclerosis (MS), but the pathophysiology of this symptom remains unclear. Both the hippocampus and thalamus have been implicated in episodic memory and show regional atrophy in patients with MS.

Objective:
In this work, we used functional magnetic resonance imaging (fMRI) during a verbal episodic memory task, lesion load, and volumetric measures of the hippocampus and thalamus to assess the relative contributions to verbal and visual–spatial episodic memory.

Methods:
Functional activation, lesion load, and volumetric measures from 32 patients with MS and 16 healthy controls were used in a predictive analysis of episodic memory function.

Results:
After adjusting for disease duration, immediate recall performance on a visual–spatial episodic memory task was significantly predicted by hippocampal volume (p < 0.003). Delayed recall on the same task was significantly predicted by volume of the left thalamus (p < 0.003). For both memory measures, functional activation of the thalamus during encoding was more predictive than that of volume measures (p < 0.002).

Conclusion:
Our results suggest that functional activation may be useful as a predictive measure of episodic memory loss in patients with MS.
take control of your own health
pursue optimal self care at least as actively as a diagnosis
ask for referrals to preventive health care specialists eg dietitians
don't let suboptimal self care muddy any underlying diagnostic picture!
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