A new brain stimulating helmet that could improve the treatment of both depression and Parkinson's disease represents a "paradigm shift" for neuroscience, say researchers.

The ultrasound device developed at University College London (UCL) and University of Oxford in the U.K. can precisely stimulate areas deep in the brain without the need for surgery.

"This advance opens up opportunities for both neuroscience research and clinical treatment," paper author and biomedical engineer professor Bradley Treeby said in a statement.

"For the first time, scientists can non-invasively study causal relationships in deep brain circuits that were previously only accessible through surgery," he added.

"Clinically, this new technology could transform treatment of neurological and psychiatric disor

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