Virtual Spatial Memory Improvement Program PDF
By:Daniel Ducharme
Published on 2018 by
|Healthy aging is known to affect the structure and function of the hippocampus In order to stimulate this region in healthy older adults, we developed an automated computerized spatial memory intervention program called NeuroNautilus because spatial memory is a function critical to the hippocampus. NeuroNautilus is designed to promote the use of spatial strategies, taking particular attention to avoid the use of stimulus-response strategies that are dependent on the caudate nucleus, a region of the brain which competes against the hippocampus. In this study, we aimed to characterize the effects of the NeuroNautilus training program on the functional topology of the default-mode network (DMN), the first intrinsic functional network to show degradations during aging. We also investigated the resting differences in the topology of the DMN between individuals who employ hippocampus-based spatial strategies and individuals who employ caudate nucleus based stimulus-response strategies. Healthy older adults were assigned to take part in the NeuroNautilus training or an active placebo control condition. Consistent with our hypotheses, we found that the NeuroNautilus training program significantly increased within network connectivity in the precuneus, a structure involved in higher order executive processes highly vulnerable to aging. Furthermore, we found that the placebo control group showed greater increase in connectivity within the dorsal medial prefrontal cortex, a finding consistent with other aging literature. No significant differences were found in the topology of the DMN between spatial and stimulus-response strategy users, although trends highlight the importance of larger samples in such studies. These results highlight the potential for spatial memory training in restoring activity to the brain's intrinsic functional networks.| --
This Book was ranked at 33 by Google Books for keyword Memory Improvement.
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