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WASHINGTON (AFP) – A scan of brain activity can effectively read a person's mind, researchers said Thursday. British scientists from University College London found they could differentiate brain activity linked to different memories and thereby identify thought patterns by using functional magnetic resonance imaging (fMRI). The evidence suggests researchers can tell which memory of a past event a person is recalling from the pattern of their brain activity alone. "We've been able to look at brain activity for a specific episodic memory -- to look at actual memory traces," said senior author of the study, Eleanor Maguire. "We found that our memories are definitely represented in the hippocampus. Now that we've seen where they are, we have an opportunity to understand how memories are stored and how they may change through time."
In the study, Maguire and her colleagues Martin Chadwick, Demis Hassabis, and Nikolaus Weiskopf showed 10 people each three very short films before brain scanning. Each movie featured a different actress and a fairly similar everyday scenario.
The researchers scanned the participants' brains while the participants were asked to recall each of the films. The researchers then ran the imaging data through a computer algorithm designed to identify patterns in the brain activity associated with memories for each of the films.
Finally, they showed that those patterns could be identified to accurately predict which film a given person was thinking about when he or she was scanned.
Perceptual experience consists of an enormous number of possible states. Previous fMRI studies have predicted a perceptual state by classifying brain activity into prespecified categories. Constraint-free visual image reconstruction is more challenging, as it is impractical to specify brain activity for all possible images. In this study, we reconstructed visual images by combining local image bases of multiple scales, whose contrasts were independently decoded from fMRI activity by automatically selecting relevant voxels and exploiting their correlated patterns. Binary-contrast, 10 × 10-patch images (2100 possible states) were accurately reconstructed without any image prior on a single trial or volume basis by measuring brain activity only for several hundred random images. Reconstruction was also used to identify the presented image among millions of candidates. The results suggest that our approach provides an effective means to read out complex perceptual states from brain activity while discovering information representation in multivoxel patterns.
Originally posted by Josephus23
reply to post by davidmann
I am not one to blame the Jews for our problems.
I will state that I am highly critical of the policies of Israel, but I do not think that it is merely the Jews.
They tend to be the historical scapegoat, and their cause has been hijacked by the Mystery Schools of Babylon.
Being Jewish merely means that one belongs to a religion.
This group of Jews understands the problem just as well as you or I.
The Mystery Schools are humanist luciferians. They believe that we are here to rebuild the Tower of Babel, which will take us to Heaven where we will become Gods.
Of course that is all allegory and metaphor.
The tower is technology, and with it we will assimilate and become trans-human, which will allow us to theoretically live forever.
But all that comes at a price because nothing is free.
This technology is just the tip of the iceberg and it's coming right at us.
[edit on 3/11/2010 by Josephus23]
Originally posted by Josephus23
We are at the precipice. The changes that we will see will only accelerate and I am beginning to see the idea of transhumanism reinforced as acceptable in pop culture motifs.
Good luck everybody.
[edit on 3/11/2010 by Josephus23]
Now that we've seen where they are, we have an opportunity to understand how memories are stored and how they may change through time.