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Teacher of physics and programmer.
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    The great enhancement debate
    What will happen when for the first time in ages different human species will inhabit the earth at the same time? The day may be upon us when people...
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    Hallucination of faces
    Project: The great enhancement debate


    The neural mechanisms responsible for triggering visual hallucinations are poorly understood. Here, we report a unique patient whose hallucinations consist exclusively of faces, and which could be reliably precipitated by looking at trees. Using functional Magnetic Resonance Imaging (fMRI), we found that, while face hallucinations was associated with increased neural activity in a number of cortical regions, including low-level visual areas, there was significant decreased activity in the right fusiform face area, a region that is empirically defined by increase activity during veridical perception of faces. These findings indicate key differences in how hallucinatory and veridical perceptions lead to the same phenomenological experience of seeing faces, and are consistent with the hypothesis that hallucinations may be generated by decreased inhibitory inputs to key cortical regions, in contrast to the excitatory synaptic inputs underlying veridical perception.
     http://precedings.nature.com/documents/1827/version/1/files/npre20081827-1.pdf 

    Mon, Aug 6, 2012  Permanent link

    Sent to project: The great enhancement debate
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    nagash     Mon, Aug 6, 2012  Permanent link
    the image reminds me of a very interesting flickr group called "faces on things"
    gamma     Mon, Aug 6, 2012  Permanent link
    I have a theory and I've been looking at the trees today, and ..., not a single face today.

    But this is the proof that something lurks out there on Earth!
     http://www.flickr.com/groups/11192513@N00/ 
     
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