Browsing Category: fMRI

Brain architecture linked to consciousness, abstract thought

UMass professor Hava Siegelmann used fMRI data from tens of thousands of patients to understand how thought arises from brain structure. This resulted in a geometry-based  method meant to advance the identification and treatment of brain disease.  It can also be used to improve deep learning systems, and her lab is now creating a “massively recurrent deep learning […]

Brain scans for customized treatment

MIT‘s John Gabrieli is investigating the use of neuroimaging to predict future behavior to customize brain health treatments. Professor Gabrieli believes that neuromarkers, determined by fMRI,  can be used to develop personalized interventions to improve education, health, addiction, criminal behavior and to analyze responses to drug or behavioral treatments. According to Gabrieli, “Presently, we often wait for failure, […]

Brain imaging technique identifies autism

Virginia Tech Carilion Research Institute professor P. Read Montague has developed a brain imaging technique that may be able to identify autism in children.  Current diagnosis is a long an unquantifiable process based on clinical judgment. The study demonstrates that a perspective tracking response can be used to determine whether someone has autism spectrum disorder.  It investigates […]

Transparent, implantable sensor improves brain monitoring

On October 23rd, ApplySci described Justin Williams‘s  graphene based, transparent sensor brain implant. The Nature paper is now available online.  This will redefine neural implants as it will enable better  fMRI monitoring of the activity around the implant, while getting detailed activity from the area. Together with noninvasive EEG, this can help fine tune very detailed EEG […]

Brain network map may improve non-invasive stimulation

Brain stimulation treatments can alter neural circuits electrically instead of chemically.  However, understanding what brain regions should be targeted, by condition, remains a challenge, particularly in non-invasive rTMS.  A Beth Israel Deaconess study suggests that brain networks – the interconnected pathways that link brain circuits to one another– can help guide site selection for brain […]

PET and fMRI predict brain injury recovery

University of Liège professor Steven Laureys‘ recent study shows that PET scans fMRI were more reliable predictors of brain injury recovery than standardized bedside assessments by doctors. Of 126 patients in the trial, 41 were in a persistent vegetative state, 81 were in a minimally conscious state and 4 had locked-in syndrome. PET correctly predicted the extent of recovery […]

Computational modeling and fMRI show the roles of brain regions in behavioral control

https://www.cell.com/neuron/abstract/S0896-6273(13)01125-2 John O’Doherty of the Caltech Brain Imaging Center has pinpointed areas of the brain—the inferior lateral prefrontal cortex and frontopolar cortex—that seem to serve as the “arbitrator” between model-based and model-free decision-making systems, weighing the reliability of the predictions each makes and then allocating control accordingly.  Professor O’Doherty believes that this can lead to better […]

fMRI shows emotional reactions in vegetative patients

http://www.plosone.org/article/info:doi/10.1371/journal.pone.0074711 Using fMRI, Tel Aviv University and Sourasky Medical Center’s Haggai Sharon, Yotam Pasternak, Talma Hendler and colleagues have shown that the brains of patients in a vegetative state emotionally react to photographs of people they know, as though they recognize them. “We showed that patients in a vegetative state can react differently to different stimuli in the […]

Imaging technology identifies signs of chronic brain injury in living football players

http://www.technologyreview.com/news/522126/identifying-signs-of-chronic-brain-injury-in-living-football-players/ Until now, chronic traumatic encephalopathy, caused by repetive head injury, could only be identified after a victim died.   CTE is linked to depression, dementia, and memory loss. A new imaging method, developed by Pittsburgh Steelers physician Julian Bailes and UCLA researchers, can for the first time spot signs of the condition in the living brain.  It […]

Brain imaging method improves resolution in PAG studies

http://www.pnas.org/content/early/2013/09/25/1306095110.abstract The “mid­brain peri­aque­ductal gray region,” or PAG, is extra­or­di­narily dif­fi­cult to inves­ti­gate in humans because of its size and intri­cate struc­ture.  Northeastern University researcher Ajay Satpute is uses state-​​of-​​the art imaging to cap­ture this com­plex neural activity. His technique increases the spatial resoluion of fMRI.  As fMRI lacks temporal resolution, there is much room for improvement. Satpute’s goal […]