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Tickling the brain with magnetic stimulation improves memory in schizophrenia
Date:3/12/2013

Philadelphia, PA, March 12, 2013 Cognitive impairments are disabling for individuals with schizophrenia, and no satisfactory treatments currently exist. These impairments affect a wide range of cognition, including memory, attention, verbal and motor skills, and IQ. They appear in the earliest stages of the disease and disrupt or even prevent normal day-to-day functioning.

Scientists are exploring a variety of strategies to reduce these impairments including "exercising the brain" with specially designed computer games and medications that might improve the function of brain circuits.

In this issue of Biological Psychiatry, Dr. Mera Barr and her colleagues at University of Toronto provide new evidence that stimulating the brain using repetitive transcranial magnetic stimulation (rTMS) may be an effective strategy to improve cognitive function.

"In a randomized controlled trial, we evaluated whether rTMS can improve working memory in schizophrenia," said Barr and senior author Dr. Zafiris Daskalakis. "Our results showed that rTMS resulted in a significant improvement in working memory performance relative to baseline."

Transcranial magnetic stimulation is a non-invasive procedure that uses magnetic fields to stimulate nerve cells. It does not require sedation or anesthesia and so patients remain awake, reclined in a chair, while treatment is administered through coils placed near the forehead.

"TMS can have lasting effects on brain circuit function because this approach not only changes the activity of the circuit that is being stimulated, but it also may change the plasticity of that circuit, i.e., the capacity of the circuit to remodel itself functionally and structurally to support cognitive functions," explained Dr. John Krystal, Editor of Biological Psychiatry.

Previous work has shown that rTMS improves working memory in healthy individuals and a recent open-label trial showed promising f
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Contact: Rhiannon Bugno
Biol.Psych@utsouthwestern.edu
214-648-0880
Elsevier
Source:Eurekalert

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