Browsing Tag: Brain

MRI detected intracellular calcium signaling

Alan Jasanoff and MIT colleagues are using MRI to monitor calcium activity at a much deeper level in the brain than previously possible, to show how neurons communicate with each other.  The research team believes that this enables neural activity to be linked with specific behaviors. To create their intracellular calcium sensors, the researchers used […]

“Monorail” could halt spread of brain tumors

Duke’s Ravi Bellamkonda has developed a “Tumor Monorail” which tricks aggressive brain tumors such as glioblastoma into migrating into an external container rather than throughout the brain.  It has been designated “Breakthrough Device” by the U.S. Food and Drug Administration (FDA). The device mimics the physical properties of the brain’s white matter to entice aggressive tumors to […]

Neural signals translated into speech

Columbia University’s Nima Mesgarani is developing a computer-generated speech method for those who are unable to talk. How brain signals translate to speech sounds varies from person to person, therefore computer models must be trained individually. The models are most successful when used during open skull surgeries, to remove brain tumors or when electrodes are […]

DARPA-developed closed loop therapies for neuropsychiatric illness

Led by Justin Sanchez, DARPA’s SUBNETS program develops responsive, adaptable, personalized closed-loop therapies for neuropsychiatric illness that incorporate recording and analysis of brain activity with near-real-time neural stimulation to correct or mitigate brain dysfunction. The technology detects ongoing dynamic changes in brain activity associated with fluctuations in mood, and uses the data to deliver precisely […]

EEG identifies cognitive motor dissociation

Nicholas Schiff and Weill Cornell colleagues have developed an EEG-based method for measuring the delay in brain processing of continuous natural speech in patients with severe brain injury. Study results correlated with fMRI obtained evidence, commonly used to identify the capacity to perform cognitively demanding tasks. EEG can be used for long periods, and is cheaper and […]

Thought controlled tablets

The BrainGate/Brown/Stanford/MGH/VA consortium has published a study describing three teraplegic patients who were able to control an off the shelf tablet with their thoughts. They surfed the web, checked the weather and shopped online. A musician played part of Beethoven’s “Ode to Joy” on a digital piano interface. The BrainGate BCI included a small implant that […]

Thought controlled television

Samsung and EPFL researchers, including Ricardo Chavarriaga, are developing Project Pontis, a BCI system meant to allow the disabled to control a TV with their thoughts. The prototype uses a 64 sensor headset plus eye tracking to determine when a user has selected a particular movie. Machine learning is used to build a profile of […]

Focused ultrasound thalamotomy in Parkinson’s Disease

UVA’s Scott Sperling and Jeff Elias, who already used focused ultrasound to treat essential tremor, have just published the results of  a small study showing the efficacy of the technology in Parkinson’s Disease. The sound waves were shown to interrupt brain circuits responsible for the uncontrollable shaking associated with the disease. The researchers claim that their study […]