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The Tipping Point of Humanness

sciencehabit writes "Robert Zemeckis, take note. Using videos that morph the face of a baby or man into a doll, researchers have figured out at what point we stop considering a face human — and start considering it artificial. The ability, the researchers say, is key to our survival, enabling us to quickly determine whether the eyes we're looking at have a mind behind them. It may also explain why so many people hated The Polar Express."

7 of 272 comments (clear)

  1. Prosopagnosia by Anonymous Coward · · Score: 4, Informative

    It's called prosopagnosia. And yes, the uncanny valley works on them. They can see if something is human or not.

    What they can't do is decide who the face they see belongs to. Al least not without detailed study of said face.

    "Hmm, I see blue eyes with large lashes. A nose with some large pores. The chin is somewhat pointy. I'm guessing this is Jennifer. Oh wait, she wears the same shoes that Jennifer wore three months ago. Yes, I think it might very well be her."

    Not exaggerated either.

  2. Re:Survival? by Moryath · · Score: 4, Informative

    There is no real world situation where we encounter Polar Express level-of-competence simulacra and our life is threatened if we make an incorrect decision

    Today, yes.

    In evolutionary past... there are lots of illnesses that cause people's minds to degrade (animal minds, too). The most common one that comes to mind is rabies, which also makes people and animals move in a somewhat zombielike, jerky fashion.

    In the modern world, identifying a rabid animal isn't quite as needed, since vaccinations have helped to slow the spread of the disease via "herd immunity" even to the "wild", feral animals that live in many cities and urban areas. Go back a century or more, on the other hand, and identifying it early - in livestock, working dogs, and wild animals - was a much more necessary skill. Hell, identifying an infected food animal is important so as not to eat it.

    And then there's African trypanosomiasis (sleeping sickness), leprosy, Variant Creutzfeldt-Jakob, transmissible spongiform encephalopathy (aka "kuru", "laughing sickness"), and other "prion" diseases.

  3. I don't seem to have any trouble surviving. by seebs · · Score: 4, Informative

    I'm autistic. I don't seem to have the automatic distinction between things with minds and things without minds. In fact, I can occasionally forget that other people have minds, briefly. For instance, a couple of days ago, I was pinching Beloved Spouse's cheeks, and I suddenly got fascinated with how the various components of the face are connected and deform each other. I started messing with this. Suddenly it occurred to me: There is a person experiencing this, and it may not be a preferred experience. But there you have it; for a good four or five seconds, I had completely forgotten that my spouse was a sapient creature. While staring directly at said spouse's face.

    I can't think of an occasion on which this has been any kind of survival problem. (My spouse is very forgiving.)

    I suspect that it's useful to get this stuff automatically, but it also produces all sorts of strange buggy behavior when we find things that trigger the "that's people" grey matter but which aren't actually people.

    --
    My blog: http://www.seebs.net/log/ --- My iPhone/iPad app: http://www.seebs.net/seebsfrac/
  4. Re:mind with intent by Nadaka · · Score: 4, Informative

    They are attempting to calculate the best approach to getting fresh food in their bowl based on your mood and their own. Do they howl until you give in? A little mewl and a flick of the tail? A pur and flop next to the bowl so that you notice it is empty while giving a belly rub? That little head butt thing that says "you one of my people and thats cool with me"? Do they sit on your dinner plate? Do they walk up to a glass of grape juice, look you in the eye and then knock it onto the carpet?

  5. Re: Polar Express by Animats · · Score: 4, Informative

    The Polar Express seemed to have "rubbery" motion capture. I used to see this problem at trade shows like SIGGRAPH. The electromagnetic motion capture people would have a stage with a live dancer wearing sensors at her joints, and screens showing the CG character driven from the dancer. The CG character always moved worse than the live dancer. If the dancer did a hard stop, the CG character would show much less abrupt deceleration. That's because the electromagnetic systems were noisy, and had to be low-pass filtered.

    There were also alignment problems. The hand positions were usually off. Metal in the area would distort the fields slightly. Around 2000 or so, errors of several inches were still common. I asked one of the demo dancers to touch her fingertips together, and the CG character was off by the breadth of a hand. The Polar Express animation had a similar slightly-off look.

    This got better once motion capture started using multiple cameras at much higher frame rates than the animation. There's still some noise and filtering is still needed, but the noise is up at a few hundred Hz and the filters have higher cutoff frequencies. By the time the motion is downconverted to 24FPS, the effects of the filtering have disappeared.

  6. Re:Don't Be Too Proud Of This Technological Terror by StikyPad · · Score: 4, Informative

    The image of Santa as a plump man was popularized by "A Visit From St. Nicholas ('Twas the Night Before Christmas)" in 1823:

    He had a broad face, and a little round belly
    That shook when he laugh'd, like a bowl full of jelly:
    He was chubby and plump, a right jolly old elf,
    And I laugh'd when I saw him in spite of myself;

    And the modern icon is generally credited to Thomas Nast, circa 1880, upon which Haddon Sundblom based his Coca-Cola ads a full 50 years later. At most, Sundblom popularized the red suit, but he was quite an artist in his own right, so calling it a "character created by Coca Cola's marketing division" is both giving their "marketing department" too much credit, as well as doing a disservice to Sundblom. It's more accurate to say that Coca-Cola's advertising used to consist of actual art.

  7. Re:Don't Be Too Proud Of This Technological Terror by Sique · · Score: 4, Informative

    No. It's simply wrong and probably a messing up with another character which indeed was created by a marketing campaign.

    I can show you Santa Claus pictures going back at least to 1822 showing a white bearded, red clothed Santa Claus (the german "Struwwelpeter" for instance has one).

    Santa Claus (Saint Nicholas) was bishop in Myra, a small town in today's southern Turkey. As a bishop, he is wearing a red gown on all depictions of him - showing him with the red ornate of every catholic bishop. In the european catholic countries Santa Claus is still wearing a bishop hat (a mitre), but everything else is very similar to the US version.

    And an editorial piece of the New York Times from 1932, several years before the marketing campaign from Coca Cola, already complains about exactly that standardized Santa Claus picture the urban myth attributes to Coca Cola.

    No, Coca Cola has nothing to do with the creation of Santa Claus or any of his modern image. It just took the iconography that was already there for a marketing campaign.

    But one Christmas character indeed comes from a marketing campaign of that time: It's Rudolph the Rednoosed Reindeer.

    --
    .sig: Sique *sigh*