India, Dec. 16 -- Professor Peter Nestorfrom theQueensland Brain Institute's Clem Jones Centre for Ageing Dementia Research said 12 people with Alzheimer's were divided into groups to test different levels of ultrasound stimulation.

"We found it was fast, safe and well tolerated which is very encouraging and opens the door to further human studies," Professor Nestor said.

Alzheimer's disease is the most common form of dementia which currently affects more than 480,000 Australians and without significant scientific advances, it's expected 6.4 million people will be diagnosed over the next 40 years.

"Although the aim of this study was to assess the safety of the technique, there were some encouraging signs that the treatment may possibly h...