Two brain samples reveal how neurogenesis changes over time. At left, a sample from an infant brain reveals young neurons (green) in the hippocampus alongside more mature neurons (red), At right, mature neurons predominate in an adult human hippocampus. (Ken Probst and Sorrells et al.)
Source: latimes.com
This is an example of what’s called an adversarial image: an image specifically designed to fool neural networks into making an incorrect determination about what they’re looking at. Researchers at Google Brain decided to try and figure out whether the same techniques that fool artificial neural networks can also fool the biological neural networks inside of our heads, by developing adversarial images capable of making both computers and humans think that they’re looking at something they aren’t.
Read More
MIT researchers have come up with a new way to measure electrical activity in the brain. Their new light-sensitive protein can be embedded into neuron membranes, where it emits a fluorescent signal that indicates how much voltage a particular cell is experiencing. This could allow scientists to study how neurons behave, millisecond by millisecond, as the brain performs a particular function.
Read More