The uncanny valley is the discomfort some people experience when a robot or digital character appears and behaves almost human, but not convincingly human. In IB Digital Society, it is relevant to SL and HL through robots and autonomous technologies.
Why It Occurs
As a robot becomes more human-like, responses may initially become positive. Near the human end of the spectrum, however, small imperfections such as rigid facial movement, unnatural eye contact, or artificial-looking skin become especially noticeable.
The mismatch between expected human behaviour and mechanical behaviour can create unease. If appearance and behaviour become fully convincing, acceptance may rise again, producing the valley-shaped pattern.
| Degree of human likeness | Response |
|---|---|
| Clearly mechanical | Comfortable, because expectations are limited |
| Almost human | Discomfort, because flaws violate expectations |
| Convincingly human | Familiarity and acceptance may return |
A common misconception is that every human-like robot causes this response. Reactions vary by person, culture, context, movement, voice, and experience.
Digital Society Application
System: Geminoid HI-1 is an android designed to resemble Hiroshi Ishiguro. Its controlled movements imitate human presence.
Example specifics: Its strongly human-like appearance can make mechanical movement or limited expression particularly noticeable to observers. This specific design therefore illustrates how realism can increase expectations without guaranteeing acceptance.
Impacts and implications: Such robots can support research into remote communication and human-robot interaction. Discomfort is a possible impact on observers; reduced trust in healthcare or education is a future risk. The example also examines identity, because human appearance is technologically reproduced, and values and ethics, because designers must consider deception, dignity, and informed interaction.
Exam Technique
For an explain question, define the term and trace the mechanism: increasing likeness raises expectations, while visible inconsistencies create discomfort. For an evaluate question, weigh benefits and limitations for multiple stakeholders and avoid assuming all users respond identically.
