Scientists at the University of California, Berkeley, have reconstructed the internal “movie” that plays in a person’s head. To re-create dynamic visual experiences, they used functional magnetic resonance imaging (fMRI) to measure the brain activity of volunteers (the other members of the research team) as they watched short movie clips (left panel in the video below). A computational model crunched the fMRI data to reproduce the images, as shown in the right panel.
The team, led by Shinji Nishimoto and Jack Gallant, say that the technology is decades away from enabling people to read others’ thoughts and intentions. It could become a powerful tool to communicate with people who cannot verbalize, such as stroke victim and coma patients. This visual image reconstruction study appears in the September 22 Current Biology.
The left clip is a segment of the movie that the subject viewed while in the magnet. The right clip shows the reconstruction of this movie from brain activity measured using fMRI. The reconstruction was obtained using only each subject’s brain activity and a library of 18 million seconds of random YouTube video. (In brief, the algorithm processes each of the 18 million clips through the brain model, and identifies the clips that would have produced brain activity as similar to the measured brain activity as possible. The clips used to fit the model, those used to test the model and those used to reconstruct the stimulus were entirely separate.) Brain activity was sampled every one second, and each one-second section of the viewed movie was reconstructed separately.
Capture the Flag: Rebels & Rainbows 2015-07-02 5:24
The White House turned into a rainbow as the Supreme Court declared same-sex marriage legal nationwide, bypassing state sovereignty. While the country is wooed with rainbow magic, have they now forgiven the government of their many trespasses? How concerned are they about human rights, while removing the Confederate flag in the south? Tearing down one symbol and lifting up another ...
Facebook looks to reduce white share of staff 2015-07-02 3:52
Facebook CEO Mark Zuckerberg has voiced a desire to transform the demographics of Facebook's employee base to better echo the company's billion-plus international users. However, Facebook's most recent diversity report revealed that white men continue to have a claim on positions at Facebook.
The online social networking service claims that diversity is central to the company's mission, observing &"Our work is producing ...
New DOJ Statistics on Race and Violent Crime 2015-07-02 2:36 Numbers finally include Hispanics as an offender category.
Heather Mac Donald of the Manhattan Institute has just published a table of statistics on race and violent crime that she received from the Department of Justice. For the first time in figures of this kind, DOJ has treated Hispanics as a separate category rather than lumping them in with whites. These data cover all ...
Fanning the Flames of Another Black Church Arson Hoax 2015-07-02 0:57
America is still reeling from the horrific Charleston, S.C., massacre at Emanuel African Methodist Episcopal Church that claimed the lives of nine innocent people.
The last thing the community and our country need are hysterical journalists compounding the pain with inflammatory reporting on an unsubstantiated “epidemic” of black church arsons.
On Monday, a Baltimore Sun lead editorial decried “a series of mysterious ...
Cold War Redux: Do you want to fight in World War Three? 2015-07-02 0:04
The rhetoric coming of Washington is pushing us dangerously close to a world changing scenario.
In the following episode of CrossTalk, Peter Lavelle discusses the way Russia and Putin are being framed by Western governments and mainstream media with guests including Chris Hedges. The dangers of ignoring historical context when reporting ‘news’ is examined, along with the pure ‘imperial hubris’ of ...