Rajiv Mehta talks about the importance of personal science.
A slideshow to illustrate a day in the life of biomedicine editor, Emily Singer, as documented by several self-tracking devices.
Kyle Machulis liberates data from self-tracking devices.
Dave Marvit demonstrates a new method for monitoring stress.
Carson Darling and Thomas Lipoma, who cofounded Nyx Devices with Pablo Bello, and neurologist Matt Bianchi, demonstrate the Somnus sleep shirt. The nightshirt is embedded with fabric electronics to monitor the wearer’s breathing patterns. A small chip worn in a pocket of the shirt processes that data to determine phase of sleep, such as REM sleep (when we dream), light sleep or deep sleep.
People implanted with the first retinal prostheses must learn to interpret their new visual world.
Over roughly nine days, a ball of mouse embryonic stem cells (gray) gives rise to a cup-shaped structure (green) with a complex three-dimensional architecture identical to the retina in early development. A tiny sac of cells balloons outward from the clump's surface; then the sac folds in on itself, with retinal pigment cells on the outside and retinal neurons on the inside.
Scientists combine two microscopy techniques to chart complex neural networks.
A new microscope creates spectacularly detailed movies of living cells.
In this video, a mouse with a fiberoptic cable implanted into his brain explores a four-arm maze. The animal has been genetically engineered to express light-sensitive proteins in a specific part of the amygdala, a brain region linked to fear. Mice are naturally afraid of open spaces, and at the beginning of the video, the mouse spends most of his time in one corner of the maze, occasionally dashing out to explore his environment. Turning on the light (as indicated by blue text) activates a specific neural circuit, which appears to make the mouse much braver, continually exploring all the parts of the maze. The video is shown at ten times normal speed.