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Scientists Decipher the Neural Code For Faces (scientificamerican.com)

New submitter akakaak writes: In a new paper published in Cell, researchers Le Chang and Doris Tsao claim to have uncovered "The Code for Facial Identity in the Primate Brain." They develop a model representing each face as a vector in a 50-dimensional "face-space," and show that the firing rate for each face-sensitive neuron represents the location along a single axis through this space. This allows them to accurately predict the appearance of a viewed face from the collective recorded activity of the neurons. This work is a major advance in the decoding of complex neural representations, and refutes exemplar-based models of face recognition. Further reading: Scientific American

35 comments

  1. "pictures of Halle Berry by turkeydance · · Score: 1

    members of The Beatles or characters from The Simpsons activated separate neurons". i bet they did.

    1. Re:"pictures of Halle Berry by __aanljs7351 · · Score: 1

      Here's a photo of my football player body. That do anything for ya?
      http://g01.a.alicdn.com/kf/HTB...

    2. Re:"pictures of Halle Berry by Anonymous Coward · · Score: 0

      Roid head.

  2. They can start with Rod Stewart by Anonymous Coward · · Score: 0

    That is one weird face.

  3. Tyvek suits? by Frosty+Piss · · Score: 1

    I'll bet this was some very smelly research!

    --
    If you want news from today, you have to come back tomorrow.
  4. This is ground breaking. by PerlPunk · · Score: 4, Interesting

    Basically, the result from the paper show that from the data recorded from the primates' neurons, it is possible to recreate with high accuracy the image the monkeys saw.

    The potential technology developed from this finding would astounding. For example, a scanner could be developed that could allow police to ask a victim to remember what the criminal looked like and produce a near photographic image of him.

    1. Re: This is ground breaking. by Anonymous Coward · · Score: 1

      Or of anyone else the "victim" wants to incriminate

    2. Re:This is ground breaking. by Anonymous Coward · · Score: 0

      Haha, the police will be astounded seeing a silverback instead of a grey or whiteback :D

    3. Re: This is ground breaking. by Anonymous Coward · · Score: 0

      That's not a problem with the technology, smartass. EVERY form of testimony is only as reliable as the witness giving it.

    4. Re:This is ground breaking. by Anonymous Coward · · Score: 0

      Suddenly all criminal descriptions are of Donald Trump!

    5. Re: This is ground breaking. by Anonymous Coward · · Score: 0

      Yep.

    6. Re:This is ground breaking. by bbelt16ag · · Score: 2

      or they could use it as another tool to steal our passwords or invade our memories.

      --
      NEVER NEVER NEVER NEVER NEVER NEVER NEVER NEVER GIVE UP! "No limitations, no boundaries, there is no reason for them."
    7. Re:This is ground breaking. by Anonymous Coward · · Score: 0

      However, it requires the police inserting electrodes into the victims brain.

    8. Re:This is ground breaking. by religionofpeas · · Score: 1

      For example, a scanner could be developed that could allow police to ask a victim to remember what the criminal looked like and produce a near photographic image of him.

      That's assuming that the neural patterns are still present in the brain, which is a big assumption

    9. Re: This is ground breaking. by Anonymous Coward · · Score: 0

      Except when I recall what someone looks like the imagine in my mind's eye is a closer resemblance to a cartoon squirrel than the actual person.

    10. Re:This is ground breaking. by Anonymous Coward · · Score: 0

      I don't know that it implies reproduction from memories.
      I think they would have to be looking at the actual face in real time to produce the correct stream.
      Correct me if I'm wrong.

      It is my understanding that the process of recalling memories uses other distinct pathways.

    11. Re:This is ground breaking. by Anonymous Coward · · Score: 0

      That's called one-way interrogation. Deconstructive interrogation is the next step after that.

  5. nobel prize material by Anonymous Coward · · Score: 0

    if confirmed, this is the stuff nobel prize winners are made of

    1. Re: nobel prize material by PoopJuggler · · Score: 3, Insightful

      And it's still the fucking Kardashians who make all the headlines.

    2. Re: nobel prize material by Captain+Splendid · · Score: 1

      If you think the Kardashians make all the headlines, that says more about you and the websites you visit than society in general.

      --
      Linux, you magnificent bastard, I read the fucking manual!
  6. Face blindness by Anonymous Coward · · Score: 3, Interesting

    I wonder what the output looks like for those of us with face blindness? Do I have an accurate representation in my head and just fail to load it, or am I not saving them properly?

    1. Re: Face blindness by Anonymous Coward · · Score: 0

      I would also like to know what they see when I look at code. Because I read code as fluently as others read faces.

    2. Re: Face blindness by Anonymous Coward · · Score: 0

      a question that could be answered eventually -or sooner if you consent to have some electrodes inserted.
      i too wonder where my facial agnosia originates - there might be multiple possible causes, but we are getting to a point where retraining might be possible in our lifetimes.

  7. Test object by nospam007 · · Score: 1

    They should test it on the orange sphincter, he can't control his face at all, that's why he looks so stupid on all the photos.

  8. Still not clear by Artem+S.+Tashkinov · · Score: 1

    OK they found like 100 neurons which encode faces. That doesn't make it clear at all how and where individual neuron states are stored in your (long term) memory. These neurons themselves obviously cannot do that.

    1. Re:Still not clear by Anonymous Coward · · Score: 0

      The point is that it takes 50 vectors. if, for sake of argument, 256 values to store, then 400 bits of storage are required. Fewer if Fred jr. is stored as 'fred but with a bigger nose). The use of 100 neurons is likely related to the type of neural network used, and how it encodes the values (256, 311, 9993, whatever are effectively required for each vector)

      You can get good results with fewer vectors in practice, but this research shows how many primates use. PCA to determine which vectors are important based on a sufficiently diverse set of training data (some initial attempts using students as subjects weresnt so diverse).

      Long term storage in the brain is another matter.

    2. Re: Still not clear by Anonymous Coward · · Score: 0

      So dsoe tihs wrok lkie wrdos? Can you just use the 50 points and rearrange everything else and it looks the same (ish) to our brain ?

  9. Error by Anonymous Coward · · Score: 0

    Join facespace to view this comment.

  10. Facefarm would love this by TheOuterLinux · · Score: 1

    "What you type is nonsense. What you read is nonsense. Yet, the most purest and honest data we can mine is biometrics." Not an actual quote, but it sounds like something Mark Z thinks in the back of his mind, all 200 neurons.

  11. perceptual representation by epine · · Score: 1

    This appears to be a highly evolved perceptual representation of a core social competence. Even if it doesn't generalize, it's the biggest science result since the second LIGO detection.

    It's already enough to further manipulate the masses, once exploited by the ad men, the plastic surgeons, and the mayfly scions of social media.

    As a reliable bijection, research can already begin correlating the genomic racial space with 50-dimensional face space, no electrodes required. I'm betting Africa and Australia get all the love.

    One caveat: how many more dimensions are required to represent male facial hair? Or is the beard recognizer a different neural subsystem altogether, half a neural highway closer to God?

  12. Good for them by Sqreater · · Score: 1

    This looks exactly like my n-dimensional "behavior-space" and the motivation vector that must be zeroed by a behavior or behaviors. This is the way to go.

    --
    E Proelio Veritas.
  13. Minority Report For Chimps by Anonymous Coward · · Score: 0

    The last thing we need is something that can read your mind and steal your thoughts.