How our brain judges people in a split second | DW Documentary

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Published 2022-10-26
Friend or foe? In a fraction of a second, our brain forms an impression of a person based on their facial expressions and voice. And artificial intelligence is getting better and better at interpreting human emotions.

Faces and voices are the first impressions we get of people we don’t know. In less than half a second, we decide whether we like or trust a person, and how intelligent we think they are. That’s thanks to the astonishing processing power of our brains. We learn to read facial expressions as babies, and as we grow older we continue to interpret emotions according to facial expressions. The voice also plays a crucial role: speed, syntax, tone, and phonetics all provide information about what a person is feeling.

But we are not the only ones who can decipher human emotions. Artificial intelligence technology is also learning to read faces and voices. A photo or a spoken sentence is usually enough to get information about identity, health, emotions and even personality. And the internet has become a vast and ever-growing database of faces and voices. Based on the sound of a voice, artificial intelligence can now detect whether a person suffers from Parkinson's, depression or even Covid-19. In this documentary, international experts offer insight into the latest science, illuminating how our brains work -- and the potential of artificial intelligence.

#documentary #dwdocumentary #impression
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All Comments (21)
  • Summary: - Brain judges based on first impressions are developed long ago when our ancestors lived without language. And everything they decide is based on gesture, face, or voice. A fast conclusion is very important for survival. - We have a tendency to do mimicry of people that we talk with. The more we try to do the same (gesture, expression, or voice), it means that we are interested in/like that person. - If we explain something with a smiley face, the listener could be smiley too. It is gonna be different if we use serious faces to explain something. - Until now, it is difficult to identify whether people lying or not. Because, people that confident about what they said and feel that the witness is true, seem so hard to identify that they were lying. - We can learn how to communicate to be more likable. For example, emphasizing words can send a clear signal, and we need to consider short pauses too. It can be learned, like learning new vocabulary or grammar. - We react to these cues from a very young age - Our brains are lazy because we want to minimize our energy level, so we tend to make fast predictions, expectations, impressions, or judgments about something, like places, people, and stuff. - Are we can unlearn stereotypes? It seems NO. more conscious or less conscious, people are applying stereotypes.
  • I think the documentary should have included how Deaf people analyze Faces and Blind people analyze Voices. Otherwise, very well done. Thank you.
  • Im 62 and spent most of my life being classified as a criminal all because I have a rough looking face... I've never been in trouble with the law but nearly always judged in a negative manner.. Remember the saying "Don't Judge a Book by its Cover ?" Nearly everyone dose...
  • @bikachu_
    if anyone is interested in learning more about this topic, I'd suggest reading the book "Blink" as it talks exactly about this and how to possibly change biases
  • @jwh0122
    6:56 voice gives life 14:59 pink elephant effect 18:04 voice can detect disease 21:34 mimicry (synchronisation) 25:25 charismatic speaker 28:15 car-driving experiment, influenced by attractive voices 39:50 experiment: stereotypes can be acquired within minutes
  • Beautiful documentary that highlights something I'm currently studying in undergrad psych -- fluid and crystallized intelligences. Which abilities are we born with, and which do we learn? In combination with this documentary, its hard to overlook some uncomfortable social concepts like racism, inequality and class division. Thank you so much for sharing.
  • @musicfuhrer
    I trust nobody until I have known them for a few years, and have direct experience of their atypical behavior and opinions.
  • @khim2970
    DW documentaries on combination of biology/brain and technologies have never disappointed. Love this one very much.
  • @33Jenesis
    Since I have a guarded personality and need a lot of personal space, it is hard for me to warm up to people fast, especially people who are too friendly or quick to invade my space (ask too many questions for example). I can honestly say that I have not yet allowed questionable people into my life. I am quite good at keeping people I don’t get along at arm’s length. When it comes to people association, I am no pushover.
  • @Unkn0wn1133
    And some people have rare voice disorders that can make it impossible to control your pitch, tone etc and causes different microexpressions trying to get the words out. Keep that in mind when forming your impressions
  • @Rippypoo
    I have never had that instinct for reading a person only based on a first impression. I wouldn't say autism is involved, but I either have to totally trust or totally not trust. The only way to protect myself is to totally not trust by default. Then slowly learn to trust as I get to know them. I try not to make any decisions after a first impression because I can't trust it.
  • @krissifadwa
    Every time I would go into a new job, I would be somewhat pushed into a management position (which I normally avoid) and as time went on, I don't believe this is only because of my work ethic and eye contact, social intelligence — but more so because of my facial expressions and just the way my face looks in general. This documentary answered a ton...
  • @koiyujo1543
    This is an amazing thing that I've been wondering for a while DW documentary thank you for this video and hope we get to see more videos like this like the misconceptions of nuclear power and stuff like that people should know how we already solve stuff like the nuclear waste storage decades ago and things like that would be something I would love to see and have people to see would be very important for anyone to know.
  • Since we judge in a few seconds, we should let those seconds pass. This will help avoid misjudgments
  • As a totally blind person, I judge the person based on their personality and how they treat me. I am good at recognizing voices once I hear them one time.
  • @yoursubconscious
    as for someone like myself, who has a lot of energy, I often find myself adjusting my tone of voice, and even my body language to suit the needs of others. Most times I don't care what they think but it is amazing how wonderful it works.
  • @winona7749
    For me, first impression and feelings are very correct most of the time. I can feel if a group of people is right for me or not whenever I enter any place.
  • @RKZX2
    i don't trust anyone from the start. have to prove & earn it with me. best way to not getting taken advantage of.
  • @PraveenSrJ01
    Awesome documentary! Watching this whole video right now while walking 4.50 miles