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A Study to Use a Low-Cost Brainwave Sensor to Detect Dementia

Dementia is a severe problem in our current society. Hence, the expectation of understanding the brain-behavior of patients is essential. Current researchers use large brainwave sensing equipment, so measurements are limited to clinical settings and cannot be used for more than a few hours. For that purpose, we tested a wearable, single-sensor brainwave biosensor to combat this issue since it is a transportable headband version of an electroencephalogram, has sufficient power to last half-day or more, and communicates with mobile phones for efficient data collection. Specific to our experiment, we utilized a specialized version of the EEG device, which is implemented into a small, sports-styled headband (Mindsall Brainwave Headband). Participants had an age range from 69 to 93 years old and were separated into two groups—one consisting of those affected by dementia and the other consisting of those not affected by dementia. Over the course of a few weeks, we studied them individually during the process of listening to a self-written short story (5 minutes), watching news media (15 minutes), and responding to short story questions regarding times, colors, shapes, and numbers (5 minutes). From our investigation, we found an initial process to differentiate dementia from non-dementia in brainwaves based on the relative strengths of brainwave fluctuations.