TOKYO -- Sony plans to offer an early warning system for signs of dementia and Parkinson's disease with a machine that quickly measures an individual's sense of smell.
Proprietary technology controls odorants for easy screening

Sony's machine quickly measures a person's sense of smell. (Photo courtesy of Sony)
TOKYO -- Sony plans to offer an early warning system for signs of dementia and Parkinson's disease with a machine that quickly measures an individual's sense of smell.