Author Archives: jtchoi

Trounced by a brain-training octogenarian – BBC News

This fantastic performance, he said was the result of 15 minutes of brain training per day. I have just had to look up the name of my opponent – but she no doubt remembers mine to this very day – and that may also be a sign of which one of us is regularly doing our little brain-training exercises.

Source: Trounced by a brain-training octogenarian – BBC News

The Robotics Inventors Who Are Trying to Take the ‘Hard’ Out of Hardware – NYTimes.com

15squiggles-web1-1429034959253-master675-v2They want to replace traditional brawn and metal with unconventional materials to create cheaper and more effective soft machines.

via NYTimes.com.

Brain implant helps blind rats navigate

sn-blindratHScientists gave navigational skills to blind rats by wiring them with a compass that sends electric signals to their brain when they’re facing north or south.

via  Science/AAAS | News.

Exoskeleton boots improve on evolution

Unpowered mechanical design lowers the energetic costs of walking.

via Nature News & Comment.

Animals Can Be Given False Memories

Two studies, one with bees and one with mice, show that the brain can be manipulated into having a memory of an occurrence that did not in reality happen.

via Scientific American.

Neuronal prediction of others’ intentions

1-s2.0-S0092867415001233-fx1Monkeys use a distinct set of neurons to predict whether a fellow primate is likely to cooperate for a common good. Changes in these newly identified ‘other-predictive’ neurons may be relevant in social behavioural disorders such as autism, the authors say.

Neuronal Prediction of Opponent’s Behavior during Cooperative Social Interchange in Primates, Cell (2015)

Hand of a Superhero

17COVERHAND-articleLargeThe proliferation of 3-D printers has had an unexpected benefit: The devices, it turns out, are perfect for creating cheap prosthetics. Surprising numbers of children need them: One in 1,000 infants is born with missing fingers, and others lose fingers and hands to injury.

3-D Printing Prosthetic Hands That Are Anything but Ordinary – NYTimes.com.

Studying Oversize Brain Cells for Links to Exceptional Memory

“SuperAgers” have a thicker anterior cingulate cortex that may represent a biological signature of high memory capacity in aging.

via NYTimes.com.

Skull fractures aren’t what they used to be

Denmark-SkullResearch published online  in the Proceedings of the National Academy of Sciences shows that for Danish men who survived skull fractures during this time period, the risk of dying at any given moment was 6.2 times higher than for their uninjured counterparts. By comparing the age at which the fracture was received with the age at which the victims eventually died, the team was able to calculate whether an instance of severe head trauma increased the victim’s odds of dying in the following years. In present times, head trauma increases the risk of death between two- and fourfold. The sixfold increase that the researchers observed likely reflects the advances in medical care, treatment protocols, and better societal support systems for trauma patients, the article concludes. Unfortunately, the scientists were unable to determine the actual cause of death for the vast majority of the samples, making it impossible to rule out confounding factors.

via Science/AAAS | News.

Miguel Nicolelis: Brain-to-brain communication has arrived

You may remember neuroscientist Miguel Nicolelis — he built the brain-controlled exoskeleton that allowed a paralyzed man to kick the first ball of the 2014 World Cup. What’s he working on now? Building ways for two minds (rats and monkeys, for now) to send messages brain to brain. Watch to the end for an experiment that, as he says, will go to “the limit of your imagination.”

Miguel Nicolelis: Brain-to-brain communication has arrived. How we did it | Talk Video | TED.com.

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