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14 Examples of the Uncanny Valley

Category : intelligent manufacturing

human-looking-robot-uncanny-valley-examplesImage: Shutterstock

Robots, while having the ability to make our lives easier in so many different ways — like vacuuming floors or working alongside us in factories — also have the power to really creep us out.

And it’s not a totally uncommon phenomenon. There’s even a term for that sense of unease and discomfort we feel when we encounter a certain type of robot that hits a little too close to home: It’s called the uncanny valley.

What Is the Uncanny Valley?

The uncanny valley is a term that describes the “eerie sensation” one feels when they encounter a robot with human-like characteristics. It was first coined in 1970 by Masahiro Mori, a robotics professor at the Tokyo Institute of Technology.

 

What Is the Uncanny Valley?

Coined by roboticist Masahiro Mori, the uncanny valley isn’t a place found on a map, but a term that describes the sense of discomfort or unease we experience when we encounter a robot with certain human-like characteristics. Evoking a negative emotional response in humans, these robots typically come close to meeting our expectations of what a robot should look and act like, only to fall short somehow before descending into what Mori called the uncanny valley. 

But now, it’s not just robots that conjure such strange feelings. Today, digital avatars and animated characters may make us uneasy, which Mori believed was a survival instinct. 

“I think this descent explains the secret lying deep beneath the uncanny valley,” he wrote in an essay, which was published in the Japanese journal Energy more than 50 years ago. “Why were we equipped with this eerie sensation? Is it essential for human beings? I have not yet considered these questions deeply, but I have no doubt it is an integral part of our instinct for self-preservation.”

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What Causes the Uncanny Valley Phenomenon?

It’s not like a Roomba is going to freak you out, nor will every robot with a human-like face. But a certain movement or gesture like a nod of a robotic head, a blink of a mechanical eye or the way silicone dimples an artificial cheek can quickly elicit a feeling of discomfort. And it really shouldn’t be surprising that these robots, which are able to mimic humans so well, stir these types of feelings — their resemblance to humans in appearance and actions is often remarkable. It’s really human perception that’s at the heart of the uncanny valley, not the robots or the technology behind them.

Though an exact cause is difficult to pin down, in the last few years, researchers believe they have identified the neural mechanisms in the brain that elicit these negative reactions, which they write in the Journal of Neuroscience are “based on nonlinear value-coding in ventromedial prefrontal cortex, a key component of the brain’s reward system.”

What does that mean, exactly? Basically, a robot is less likely to creep us out if it’s able to do something that’s ultimately useful.

“This is the first study to show individual differences in the strength of the uncanny valley effect, meaning that some individuals react overly and others less sensitively to human-like artificial agents,” Astrid Rosenthal-von der Pütten, one of the study’s authors, said in a University of Cambridge news report. “This means there is no one robot design that fits — or scares — all users. In my view, smart robot behavior is of great importance, because users will abandon robots that do not prove to be smart and useful.”

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Uncanny Valley Examples

Whether a robot is “smart and useful” or just a bastion of creepiness is often in the eye of the human beholder. Here are some robots that can fall into the uncanny valley.

 

Actroid

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Actroid robots are manufactured by the Japanese robotics company Kokoro Dreams, a subsidiary of Sanrio. | Video: Society of Robots

Actroid robots, which are manufactured by the Japanese robotics company Kokoro Dreams, a subsidiary of Sanrio, operate autonomously and heighten human-robot interaction through “motion parameterization” — basically, expressive gestures like pointing and waving that make humans feel like they’re being paid attention to, though often without a suitable bridge between expectation and reality. Though Actroids also blink and make breathing motions that could easily weird one out, they have been used to help adults with autism spectrum disorder develop nonverbal communication skills. A new line of Actroid robots are in development, while current models are available for rental.

 

Alter 

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Alter is a humanoid robot from Osaka University. | Video: The Japan Times

In 2020, Alter 3, which is powered by an artificial neural network and was developed as a joint project from researchers at Osaka University and the University of Tokyo, conducted an orchestra at the New National Theater in Tokyo and has performed in Germany and the United Arab Emirates. To make Alter 3 better capable of interacting with humans, researchers equipped the robot, which has a human-like face and robotic body, with cameras in both eyes as well as a vocalization system in the robot’s mouth.

 

Ameca

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Ameca is equipped with sensors that can track a person or object’s movement. | Image: Engineered Arts

Ameca, a humanoid robot from Engineered Arts, has a silicon face and is equipped with sensors that can track a person or object’s movement. It’s able to express astonishment and surprise, and can recognize faces and voices. Ameca also yawns and shrugs, and can discern emotions and even age. It can also shush you if you’re being too loud.

 

BigDog

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BigDog is a canine-like, legged robot developed by Boston Dynamics. | Video: Boston Dynamics

It’s not just those robots with human-like characteristics that evoke negative reactions, robots that favor our four-legged friends also descend into the uncanny valley at times. BigDog, which was a canine-like, legged robot developed by Boston Dynamics, could cause some discomfort, especially if you watch it traipse through the woods or try to regain its balance after slipping on some ice. The fact that it had no head and seemed destined to become some sort of robotic pack animal also evokes a slight sense of pity. Now considered a “legacy robot” by Boston Dynamics, it was the first robot with legs to leave the company’s lab.

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CB2 

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CB2 is a child-like robot from the University of Osaka. | Video: AP Archive

Designed to mimic the look and behavior of a gigantic two-year-old child, CB2, a child robot from the University of Osaka, was developed in 2006 and used by researchers to study robot learning and cognition, according to IEEE Spectrum. Gray and hairless, CB2’s eyes were outfitted with cameras and sensors were placed on its skin, which resembled a futuristic, space-like suit.

 

Diego-san

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Diego-san is a child-like robot. | Video: david hanson

Developed by Hanson Robotics in 2013, Diego-san is another robotic child that likely left more than a few people who interacted with it feeling slightly unsettled. According to Hanson’s website, Diego-san, which has a full set of teeth seemingly baked into a mask-like half-face on top of a robotic body, was designed to learn much like a real child would and has made a home for itself at the Machine Perception Lab of the University of California, San Diego, where researchers are using it to study artificial intelligence and human-robot interaction.

 

Erica 

Erica was originally slated to work in broadcast news in Japan. | Video: HiroshiIshiguroLab

Erica, which has been described as a “pretentious method-acting humanoid robot,” is another source of human unease. Developed as a joint effort between Osaka University, Kyoto University and the Advanced Telecommunications Research Institute International, Erica was initially slated to work in broadcast news in Japan, but has also found a home in Hollywood, cast in a feature film that has yet to be released. A portrait of Erica, which is short for Erato Intelligent Conversational Android, won third place in London’s National Portrait Gallery competition.

 

Geminoid HI

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Geminoid HI can mimic roboticist Hiroshi Ishiguro’s voice and head movements. | Video: HiroshiIshiguroLab

Developed by Osaka University roboticist Hiroshi Ishiguro in 2006, Geminoid strongly favors its creator and can even mimic Ishiguro’s voice and head movements. More recent Geminoid iterations that are just as unsettling also exist for research purposes. That research takes two approaches — one related to engineering and the other cognitive features — with the aim to “realize an advanced robot close to humankind, and at the same time, the quest for the basis of human nature.”

 

Jules

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Jules is another humanoid robot from Hanson Robotics. | Video: david hanson

Unveiled in 2006, Jules, another humanoid robot from Hanson Robotics that’s also dubbed a custom character robot that can be transformed into any human likeness, is equipped with natural language processing, computer vision and facial recognition — all of which make Jules ideal for conversation. Today, Jules still resides at his original home, with researchers at the University of West England in Bristol.

 

Motormouth Robot KTR-2

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Motormouth Robot KTR-2 was designed to imitate human speech. | Video: postcardsky

Imagine a rubber mouth paired with an ill-shapen nose and you have the Motormouth Robot KTR-2. The sound that emanates from this robot, which was designed to imitate human speech, according to Gizmodo, is difficult to describe other than buzzy. It uses an air pump for lungs and is equipped with its own set of metallic vocal cords and a tongue made of silicone.

 

Nadine

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Humanoid robot Nadine has worked in customer service and led bingo games. | Image: Nadiathalmann / Wikimedia Commons

When it comes to the uncanny valley, there are few robots that will transport you there quicker than Nadine, a humanoid social robot developed by researchers from Nanyang Technological University in Singapore. Nadine, with its realistic skin, hair and facial features, has worked in customer service and led bingo games. Nadine is also able to recognize faces, speech, gestures and objects.

 

Saya

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Saya was the first robot teacher. | Video: saya project

Saya, which was developed by researchers in Japan, was the first robot teacher. When it was first introduced in a classroom, it couldn’t do more than take attendance and ask students to be quiet. Initially developed as a receptionist, by the time Saya entered the classroom, it could express emotions like surprise, fear and anger and was controlled remotely by humans. “Robots that look human tend to be a big hit with young children and the elderly,” Hiroshi Kobayashi, Tokyo University of Science professor and Saya’s developer, told the Associated Press in 2009. “Children even start crying when they are scolded.”

 

Sophia

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Sophia has been on “The Tonight Show” and featured on the cover of Cosmopolitan. | Video: Hanson Robotics Limited

Sophia, an AI-powered humanoid robot from Hanson Robotics, is famous, having been featured on the cover of Cosmopolitan magazine and as a guest on The Tonight Show where she played rock-paper-scissors with host Jimmy Fallon. But what sets Sophia apart when it comes to the uncanny valley is her own self-awareness, seeing herself as the self-described “personification of our dreams for the future of AI.”

 

Telenoid R1

Telenoid is another robot from Osaka University’s Hiroshi Ishiguro. | Video: HiroshiIshiguroLab

If you’re still feeling uneasy about Geminoid HI from Osaka University’s Hiroshi Ishiguro, this Telenoid R1 robot won’t do much to quell your discomfort. While this robot is much less lifelike — IEEE Spectrum described it as “an overgrown fetus” — it displays its few human-like characteristics, like a bald head and arm- and leg-less torso, in a way that really evokes the true sense of what it’s like to be stuck deep in the uncanny valley. Though its developers acknowledged how “eerie” it is at first, they believed humans would ultimately adapt to it.

 

Frequently Asked Questions

What is uncanny valley?

The uncanny valley refers to the discomfort humans feel when they encounter robots that demonstrate human-like qualities. Although this term largely relates to human interactions with robots, the uncanny valley can also occur with digital avatars and CGI used in films.

What is an example of uncanny valley?

An example of the uncanny valley is the robot Diego-san being able to mimic human facial expressions as a way to communicate. The problem is that these facial expressions don’t come across as natural, potentially disturbing some people.

Why does the uncanny valley exist?

The uncanny valley can be traced to human perception. Sometimes humans unconsciously project human qualities onto robots, making them appear more lifelike and blurring the line between humans and robots in the minds of some people.

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