Researchers working at MIT have successfully manipulated the content of a rat’s dream by replaying an audio cue that was associated with the previous day’s events, namely running through a maze (what else). The breakthrough furthers our understanding of how memory gets consolidated during sleep — but it also holds potential for the prospect of "dream engineering."
Working at MIT’s Picower Institute for Learning and Memory, neuroscientist Matt Wilson was able to accomplish this feat by exploiting the way the brain’s hippocampus encodes self-experienced events into memory. Scientists know that our hippocampus is busy at work replaying a number of the day’s events while we sleep — a process that’s crucial for memory consolidation. But what they did not know was whether or not these "replays" could be influenced by environmental cues.
To see if this could be done, Wilson and his team trained a group of rats to run through a maze using two distinct audio cues. The rats quickly learned that the tones were helpful; one sound indicated that food could be found by going left, while the other sound indicated that a food reward awaited them on the right. And while the rats were doing this, the neuroscientists were recording their neural activity.
Later, while the rats were sleeping, the researchers once again recorded the neural activity of their brains. Using correlative analysis, Wilson confirmed that the rats were dreaming of their maze navigating exploits from the day before.
But when the researchers played the audio cues from the experiment, they noticed a very interesting thing: the rats would dream about the section of the maze previously associated with the audio cue. The experiment demonstrated that the content of a rat’s dream can be biased by re-activating certain memories while they’re asleep.
Looking ahead, the researchers believe that this simple example of dream engineering could open up the possibility of more extensive control of memory processing during sleep — and even the notion that selected memories could be either enhanced, blocked, or modified. Wilson is also aiming to develop new approaches to learning and behavioral therapy through similar kinds of cognitive manipulation.
Breakthrough Could Enable Others to Watch Your Dreams and Memories (2011)
"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. "
Sweden may be at war "in a few years" - top brass in leaked document 2016-02-13 5:24
In a few years Sweden may be engaged in a war with a “qualified opponent” after two centuries of peace, a senior Swedish commander has told soldiers in an internal brochure.
The alarming message was reportedly sent by Major General Anders Brännström, the Army chief, in a brochure distributed among the participants of a major annual event that is to open ...
Danish imam urges govt to accept child marriages among refugees 2016-02-13 4:57
A high-profile imam has urged the Danish government to accept child brides, as the practice is part of the culture of many refugees arriving in the country. It follows an announcement by Denmark that such couples will be separated under Danish law.
Imam Oussama El-Saadi, of the Aarhus mosque in Denmark, said that child brides should be looked at from a ...
White Parents in Virginia Shutdown White Guilt Video! 2016-02-13 4:56
You see folks? This is what happens when you stop blaming the Joo, and you get the fuck off your favorite bitch corner and start taking action! This is what happens when parents start parenting again! What? You’re gonna brainwash our kids with your filth and lies? We don’t think so. How would you like an empty school with no ...
Hungarian Top Economist: Civil War is Coming to Europe 2016-02-13 2:36 Zsolt Bayer, Hungarian journalist, publicist, and co-founder of Hungary's currently ruling political party, and Dr. László Bogár, former politician and leading economist, discuss the Cologne sexual assualts committed by migrants on New Year's Eve, 2016.
This short part of the 60-minute long television program that aired on Echo TV on January 8, 2016, is of a rant by Mr. Bogár warning ...
British scientists granted permission to genetically modify human embryos 2016-02-12 23:48 The Francis Crick institute will genetically edit the leftover embryos from from IVF clinics
British scientists have been granted permission to genetically modify human embryos by the fertility regulator.
The scientists want to deactivate genes in leftover embryos from IVF clinics to see if it hinders development.
It will only be the second time in the world that such a procedure has ...