How Advanced AI Is Detecting Dementia Before Symptoms Even Appear

Advanced AI is making significant strides in detecting dementia before symptoms even appear. This breakthrough is crucial because early detection can lead to early intervention, potentially slowing down the progression of the disease. Researchers at Mass General Brigham have developed an AI tool that analyzes brain activity during sleep to predict cognitive decline years in advance.

### How the AI Tool Works

The AI tool uses electroencephalography (EEG) data, which records the electrical activity of the brain. By focusing on subtle changes in brain wave patterns, particularly during deep sleep, the tool can identify individuals at risk of developing dementia. This method has shown impressive accuracy, correctly identifying 85% of participants who later developed cognitive impairment.

### The Importance of Early Detection

Early detection is vital because it allows individuals to make lifestyle changes or undergo treatments that may help preserve cognitive health. According to the World Health Organization, approximately 55 million people worldwide are living with dementia. By identifying those at risk early, there is a window of opportunity for intervention before symptoms become apparent.

### Other Approaches to Detecting Dementia

In addition to analyzing brain activity, other researchers are exploring different methods to detect dementia. For example, a portable AI system can analyze motor functions, such as walking and balance, to identify early signs of cognitive decline. This system has shown promising results, accurately identifying 83% of participants with mild cognitive impairment.

### Future Implications

The use of AI in detecting dementia is not only limited to brain activity or motor functions. It also involves leveraging precision medicine and digital health technologies to prevent Alzheimer’s disease. Experts like Stephen Waring are exploring how these technologies can be used to improve outcomes for those at risk.

Overall, advanced AI is revolutionizing the field of dementia detection by providing tools that can identify risks years before symptoms appear. This early detection can lead to better health outcomes and improved quality of life for those affected by dementia.