By using brain scan data and a set of estimator algorithm , scientist from the Netherlands were able to determine which letters a person was seem at . The find suggest it ’ll presently be possible to reconstruct human thoughts at an unprecedented level of point , including what we see , remember — and even woolgather .
To make it bechance , researchers from Radboud University Nijmegen constructed a system comprised of a operative MRI electronic scanner , shape recognition software system , and a education algorithm .
During the brain scans , the researchers pulled data from the occipital lobe , an area at the back of the brain that reacts to optical stimuli . Test topic were tell to reckon at a serial of alphabetic character flash on a screen door , include handwritten versions of the letters B , R , A , I , N , and S. This activity would charge specific region in the occipital lobe , which the scientist extracted in the form of 2x2x2 millimetre information snippets promise voxels .
They then taught an algorithm to correlate sure pixels , namely the configuration of specific letter , to these voxels . This give up the system to rebuild the ikon being viewed by the player , albeit an unreadable , fuzzy one . The mental process was further refine by teach the system in approach what letters look like — basically giving it prior knowledge .
“ Our approach is standardised to how we believe the psyche itself combines prior cognition with centripetal information , ” noted the researchers through arelease . “ For exercise , you could know the stock and curves in this article as letters only after you have learned to read . And this is precisely what we are looking for : models that show what is happening in the brain in a realistic fashion . ”
finally , the investigator hope to implement scaled - up versions of their model to puzzle out retentivity and subjective experiences such asdreamsor visualizations .
https://gizmodo.com/brain-scans-can-predict-what-youre-dreaming-about-470837383
Next , the investigator contrive to use more sinewy fMRI digital scanner to improve resolving , which will allow them to tie in images of face to 15,000 voxels in the brainpower .
Read the intact study at NeuroImage : “ Linear reconstructive memory of perceived picture from human brain activity . ”
NeurosciencePerceptionScience
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