Tuesday, October 13, 2015

Scans Show People Have a Brain 'Fingerprint,' Researchers Say

That is the title of this article I am writing about. "People appear to have their own individual fingerprint of brain activity, one that might be used to predict the risk of mental illness and see the effects of medical treatment, researchers reported on Monday.  The pattern of brain activity is consistent — and the research team at Yale University could turn it around and identify specific individuals based on the pattern.  "The patterns were different enough that we were able to pick people out of a crowd regardless of what people were doing," said Emily Finn, a graduate student who led work on the study.  They even used it to show differences in what's called fluid intelligence — quick thinking and problem solving.  'We demonstrate that it is possible, with near-perfect accuracy in many cases, to identify an individual from a large group of subjects solely on the basis of his or her connectivity matrix,' Finn's group, led by Todd Constable, director of MRI research at Yale, wrote in the journal Nature Neuroscience. The team used data from multiple functional magnetic resonance imaging (fMRI) brain scans of 126 volunteers. They're all taking part in a bigger study called the Human Connectome Project, which is looking to see just how different parts of the brain work together." This sounds promising.  If they can help people with mental illness that would be great.
The article goes on to say: "They found a distinct pattern of activity in each person, which held true when they were doing something and when they were just sitting there. It's not so much showing that one brain region is connecting to another as showing that two or more regions are functioning in synchrony at certain times, Finn said. 'It's definitely not easy to see,' she said. The effect wasn't visual, but could be seen in the streams of data coming from the scans. 'It was about the pattern,' she said. 'It wasn't necessarily that people had overall strong connection strength or overall weak connection strength.' It's step towards applying the benefits of fMRI to individuals. 'In the past, in an fMRI you would image a bunch of people doing the same thing and you would average together the data from many people and see how the brain lights up,' she said. 'The dogma has always been that it is hard to get any meaningful information from a single person's scan because this method is so noisy and crude.'  The Yale team's approach found that you could, in fact, find out quite a bit about an individual from his or her fMRI.  'Characteristic connectivity patterns were distributed throughout the brain, but the frontoparietal network emerged as most distinctive,' the team wrote.  These are regions associated with fluid intelligence, Finn said." They can tell from the brain how it is working. All I have seem of MRI's is brain lighting up when we are using certain parts.
The article ends with: "These two lobes, the prefrontal and parietal, are some of the most recently evolved parts of the brain,' she said. They're linked with attention and memory. Not that this means brain scans will replace IQ tests. 'It is a lot easier to give someone an IQ test than to put them in a scanner,' Finn said. 'The real potential in this is not predicting IQ per se, but thing that are harder to predict in a test like who is going to go on to develop mental illness,' she said. 'Maybe we could find a way to predict it so we can intervene and prevent mental illness,' Finn added.  There aren't drugs or treatments that can do that now but there may be in years to come, she said.  It might be useful in predicting or measuring someone's response to drug education programs, or to other therapies, she added."  It would be nice to see if they can predict when people are going to get mental illness.  If they can stop before people go through hell that would be great. I know this will take years before anything can be done.  They do not have medication that helps everyone right now.

1 comment:

  1. Good one friend. I know it has to be good if you’re reviewing it! Been a long time my friend, glad to see you’re doing well! Just watch it; Andrew awce Myland recently purchased the area at 39-47 Union St in Auckland. The site is large enough to accommodate up to three towers of apartments but that isn’t what is going to happen. Myland wants to do something more than just build a group of apartment buildings and shove everyone right next to each other. Instead, Fawcet and Myland want to build much higher standard of living with a lower density of residents.