The impact of ever-miniaturizing electronics can be felt right across the spectrum of technological advancement, but as we are beginning to see, one place where it can have a truly profound impact is in the human body. The latest example of this is a tiny camera no bigger than a grain of salt, which can be fixed to the end of a catheter and fed into arteries to provide surgeons tasked with removing plaque a live view from within.
When it comes to surgically replacing sections of missing or damaged bone, there are two main approaches: harvesting pieces of bone from elsewhere in the body, or using shaped metallic implants. That said, harvesting bone is invasive and painful, while metallic implants won’t grow along with the patient.
We are often urged not to judge a book by its cover when meeting someone new, but scientists have found a way to alter how you might feel about someone by tweaking your response to their face.
Researchers have developed a technique that allows them induce either positive or negative feelings about other people’s faces.
They were able to get participants in the study to feel more warmly towards faces of people they had never met before or less keen on other faces at will, all without those taking part realising they were being manipulated.
Scientists have developed a technique that allows them to identify brain activity associated with specific emotional responses (some examples above). They showed they could then promote this activity in participants by rewarding them whenever it appeared
Most people will be familiar with the feeling of a ringing in their ears after a night of loud music.
Although the ringing is normally temporary, repeated damage like this in humans, and other mammals, leads to hearing problems and eventually causes deafness.
But sea anemones possess a skill we do not – they can repair cells like those damaged in human ears through loud noises, a new study has shown.
A new, MIT-developed hydrogel patch could provide a more targeted, triple-therapy approach to treating tumors. With benefits to using the patch both before and after tumor removal, and with tests of laboratory mice showing extremely positive results, the little patch could have a big impact on cancer treatment.
A chance discovery in a physics lab at Rice University has turned up an ultra-hard material that could usurp the titanium commonly used in today’s knee and hip replacements.
Scientists have found that by melting gold into the titanium mix they can produce a non-toxic metal that is four times harder than titanium itself, raising the prospect of more durable, longer lasting medical implants.
Sufferers of type 1 diabetes are required to constantly monitor their blood glucose levels and administer insulin as needed. But the daily hassle of self-care for patients could soon be reduced, with a new study concluding that automated “artificial pancreas” systems could be available in as little as two years.
If you find yourself struggling to focus on an object, there may one day be an alternative to reaching for your glasses or popping in your contact lenses. Scientists have found that by delivering a mild electrical current to a certain part of the brain they can affect how it processes visual information, leading not only to sharpened focus for the subject, but possibly a new understanding of our sense of sight as well.
Stimulating the brain with electrical currents has shown promise in a number of different areas of healthcare. These include treating psychological disorders, preventing migraine attacks, rehabilitating stroke victims and even helping us to learn from our mistakes. So for researchers at Vanderbilt University, adapting the technology to improve eyesight wasn’t all that big of a leap.