AI detects pneumonia from chest X-rays

Andrew Ng and Stanford colleagues used AI to detect pneumonia from x-rays with similar accuracy to trained radiologists.  The CheXNet model analyzed 112,200 frontal-view X-ray images of 30,805 unique patients released by the NIH (ChestX-ray14.) Deep Learning algorithms also detected14 diseases including fibrosis, hernias, and cell masses, with fewer false positives and negatives than NIH […]

Researchers claim to improve human memory with implanted electrodes

In a small study, USC’s Dong Song demonstrated the efficacy of an implantable “memory prosthesis.”   Dr. Song presented his work at the Society for Neuroscience conference in Washington this week. 20 volunteers had the device implanted at the same time as electrodes for epilepsy treatment, a procedure which they had already planned. The “prosthesis” collected brain […]

Optogenetic technique controls single neurons

MIT’s Ed Boyden and Paris Descartes University’s Valentina Emiliani have developed a new optogenetic technique, combined with new opsins, that stimulates individual cells with precise control over both the timing and location of the activation. This will allow the study of how individual cells, and connections among those cells, generate specific behaviors such as initiating a movement or […]

Silicon probes record hundreds of neurons simultaneously

Neuropixels, developed by HHMI’s Tim Harris, are electrodes that record brain activity from hundreds of neurons. Previously, it was not possible to measure the joint activity of individual neurons distributed across brain regions. Recording methods could either resolve the activity of individual neurons or monitor multiple brain regions. UCL, Allen Institute for Brain Science, IMEC researchers collaborated on […]