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Multimodal Assessment of Neural Substrates in Computerized Cognitive Training: A Preliminary Study
Hae Ri Na1, Jae Sung Lim2, Woo Jung Kim2
1Department of Neurology, Bobath Memorial Hospital, Seongnam, Korea.
Journal of Clinical Neurology (Seoul, Korea)
|September 11, 2018
Summary
Computerized cognitive training improved cognitive function in mild cognitive impairment and normal cognition groups. Neural changes in the anterior cingulate and insula, part of the salience network, may underlie these cognitive improvements.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Medical Imaging
Background:
- Computerized cognitive training (CCT) shows clinical efficacy.
- Neural mechanisms of CCT are under-investigated using multimodal neuroimaging.
Purpose of the Study:
- To evaluate CCT effectiveness in patients with mild cognitive impairment (MCI) and subjective memory impairment (SMI), and normal controls.
- To identify neural substrates of CCT using simultaneous multimodal neuroimaging.
Main Methods:
- 26 participants (10 MCI, 6 SMI, 10 controls) underwent 24 CCT sessions.
- Multimodal neuroimaging included electroencephalography, FDG-PET, volumetric MRI, and DTI.
- Neuropsychological tests assessed cognitive function pre- and post-training.
Main Results:
- MCI group improved in executive function (Trail-Making Test B) and memory.
- Normal cognition group improved in language and attention/psychomotor speed.
- FDG-PET, MRI, and DTI revealed changes in the anterior cingulate and insula in the MCI group post-training.
Conclusions:
- Computerized cognitive training enhances cognitive function in MCI and normal cognition.
- The anterior cingulate and anterior insula, key components of the salience network, are potential neural substrates for CCT-induced cognitive improvements.
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