Thursday, 20 October 2016
Psychologist Scans Own Brain Twice per Week for a Year and a Half
If you use social media, you have probably seen posts where someone has shown photos of themselves taken at regular intervals over a long period. Well, Stanford University psychologist Russell Poldrack has gone them one better: he has scanned his own brain twice per week for a year and a half! But Poldrack’s goal isn’t simply to wow his friends on Facebook. He is using the scans to do something that has never been attempted before: to understand how the connectivity of a normal person’s brain may vary over a period of several months, a span of time in which people with mental disorders often show considerable fluctuations in their psychological functions.
Poldrack calls his study “MyConnnectome”, and he published his initial results in the December 9, 2015 edition of the journal Nature Communications. It might seem surprising that no one had ever gathered such data before. But not many normal subjects would have been willing to do what Poldrack did: get into an MRI machine for a brain scan two mornings each week (one of them on an empty stomach) for a year and a half, have blood samples taken once per week, and write a report on his diet and physical activity every day. It took a scientist who was really motivated to advance the state of knowledge. (more…)