Optogenetics - a new technology that combines genetic engineering, lasers, neurology and surgery

The best current technology for hard-to-treat disorders can get a difficult direct neural treatment called Deep Brain Stimulation, or DBS. An electrode is inserted down to the area associated with the disorder being treated and left in place. After the surgery has healed, the implant pulses current at a frequency that either activates or quiets the area responsible for the condition. Affecting cells further from the electrode means passing more current through nearby cells. DBS is by far the most precise clinical procedure for controlling areas of the brain, but it’s still disappointingly non-specific.

A new technique called optogenetics combines genetic engineering, lasers, neurology and surgery to create a direct control mechanism.

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Problems are solved by sleeping

Volunteers who entered REM during sleep improved their creative problem solving ability by almost 40%, University of California San Diego researchers showed.

The researchers believe REM sleep allows the brain to form new nerve connections without the interference of other thought pathways that occur when we are awake or in non-dream-state sleep.

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Wireless Power Harvesting for Cell Phones

A cell phone that never needs recharging might sound too good to be true, but Nokia says it's developing technology that could draw enough power from ambient radio waves to keep a cell-phone handset topped up.


The Nokia device will work on the same principles as a crystal radio set or radio frequency identification (RFID) tag: by converting electromagnetic waves into an electrical signal. This requires two passive circuits. "Even if you are only getting microwatts, you can still harvest energy, provided your circuit is not using more power than it's receiving," says Markku Rouvala a researcher from the Nokia Research Centre, in Cambridge, U.K.

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Ultrasound might provide a new, noninvasive way to control brain activity

Ultrasound waves, currently used in medicine for prenatal scans and other diagnostic purposes, could one day be used as a noninvasive way to control brain activity. Over the past two years, scientists have begun experimenting with low-frequency, low-intensity ultrasound that can penetrate the skull and activate or silence brain cells. Researchers hope that the technology could provide an alternative to more-invasive techniques, such as deep-brain stimulation (DBS) and vagus nerve stimulation, which are used to treat a growing number of neurological disorders.

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