Browsing Category: Brain

Tattoo electrodes for long-term EEG, MEG measurements

Graz University professor Francesco Greco has built on his earlier work to create advanced inkjet printed conductive polymer electrodes on tattoo paper. The composition and thickness of the transfer paper and conductive polymer have been optimized to achieve a better electrode/skin connection and improve EEG signal quality. The cheap, user-friendly, dry electrodes have shown similar […]

Sniff test predicts consciousness recovery

Cambridge scientist Anat Arzi and Yaron Sacher of Israel’s Beit Lowenstein Rehabilitation Center have developed a simple olfactory consciousness test. In a study, 43 unconscious brain-injured pateients were presented with jars containing various smells under their noses. Scents included pleasant shampoo, unpleasant rotten fish, and no odor. Scientists measured the volume of air inhaled through […]

Directional DBS system targets GPi to relieve Parkinson’s symptoms

Abbott received FDA approval for an expanded indication for its Deep Brain Stimulation system, to include targeting of internal globus pallidus. The GPi plays an integral role in motor function. When targeted with DBS, Parkonson’s symptoms not adequately controlled by medication can improve. The directed stimulation system is now approved for all major targets used […]

High resolution brain map traces wiring within, between, thalamus and cortex

Allen Institute scientists have created a high-resolution brain map, which traces thousands of connections between brain areas in mice, which they believe  can help us understand how brain circuitry changes in diseases and disorders such as Alzheimer’s disease and schizophrenia. This is the most detailed map of connections in a mammalian brain to date, tracing neural […]

DBS study shows long-term antidepressant effect in treatment-resistant depression

Helen Mayberg at Mount Sinai has published a study showing that deep brain stimulation of the subcallosal cingulate provides a lasting antidepressant effect in treatment-resistant depression. According to Mayberg: “Over eight years of observation, most of our study participants experienced an antidepressant response to the deep brain stimulation of Area 25 that was robust and […]