A Bayesian explanation of the 'Uncanny Valley' effect and related psychological phenomena

There are a number of psychological phenomena in which dramatic emotional responses are evoked by seemingly innocuous perceptual stimuli. A well known example is the ‘uncanny valley’ effect whereby a near human-looking artifact can trigger feelings of eeriness and repulsion. Although such phenomena are reasonably well documented, there is no quantitative explanation for the findings and no mathematical model that is capable of predicting such behavior. Here I show (using a Bayesian model of categorical perception) that differential perceptual distortion arising from stimuli containing conflicting cues can give rise to a perceptual tension at category boundaries that could account for these phenomena. The model is not only the first quantitative explanation of the uncanny valley effect, but it may also provide a mathematical explanation for a range of social situations in which conflicting cues give rise to negative, fearful or even violent reactions

The Public’s Perception of Humanlike Robots: Online Social Commentary Reflects an Appearance-Based Uncanny Valley, a General Fear of a “Technology Takeover”, and the Unabashed Sexualization of Female-Gendered Robots

Towards understanding the public’s perception of humanlike robots, we examined commentary on 24 YouTube videos depicting social robots ranging in human similarity – from Honda’s Asimo to Hiroshi Ishiguro’s Geminoids. In particular, we investigated how people have responded to the emergence of highly humanlike robots (e.g., Bina48) in contrast to those with more prototypically-“robotic” appearances (e.g., Asimo), coding the frequency at which the uncanny valley versus fears of replacement and/or a “technology takeover” arise in online discourse based on the robot’s appearance. Here we found that, consistent with Masahiro Mori’s theory of the uncanny valley, people’s commentary reflected an aversion to highly humanlike robots. Correspondingly, the frequency of uncanny valley-related commentary was significantly higher in response to highly humanlike robots relative to those of more prototypical appearances. Independent of the robots’ human similarity, we further observed a moderate correlation to exist between people’s explicit fears of a “technology takeover” and their emotional responding towards robots. Finally, through the course of our investigation, we encountered a third and rather disturbing trend – namely, the unabashed sexualization of female-gendered robots. In exploring the frequency at which this sexualization manifests in the online commentary, we found it to exceed that of both the uncanny valley and fears of robot sentience/replacement combined. In sum, these findings help to shed light on the relevance of the uncanny valley “in the wild” and further, they help situate it with respect to other design challenges for HRI

¿ Qué hay más allá del Valle Inquietante ?

Durante muchos años, la hipótesis del Valle Inquietante propuesta por Mori, no sólo ha sido estudiada, respetada y hasta temida por diseñadores y desarrolladores robóticos, sino que sus efectos han sido de interés científico en los ámbitos de la Psicológia, la Ciencia Cognitiva, la Inteligencia Artificial, la Creación de videojuegos y la Animación. Aquellos que siguen la línea de Mori prefieren mantenerse lo suficientemente alejados del valle para garantizar el éxito de sus creaciones. Sin embargo un grupo de investigadores más osados, dispuestos no solo a entrar en el Valle sino también a descubrir una salida, han conseguido a través de los resultados de sus experimentos, poner en tela de duda la hipótesis planteada por el profesor japonés, dando paso al planteamiento de nuevas teorías

Human or Robot?: Investigating voice, appearance and gesture motion realism of conversational social agents

Research on creation of virtual humans enables increasing automatization of their behavior, including synthesis of verbal and nonverbal behavior. As the achievable realism of different aspects of agent design evolves asynchronously, it is important to understand if and how divergence in realism between behavioral channels can elicit negative user responses. Specifically, in this work, we investigate the question of whether autonomous virtual agents relying on synthetic text-to-speech voices should portray a corresponding level of realism in the non-verbal channels of motion and visual appearance, or if, alternatively, the best available realism of each channel should be used. In two perceptual studies, we assess how realism of voice, motion, and appearance influence the perceived match of speech and gesture motion, as well as the agent\u27s likability and human-likeness. Our results suggest that maximizing realism of voice and motion is preferable even when this leads to realism mismatches, but for visual appearance, lower realism may be preferable. (A video abstract can be found at https://youtu.be/arfZZ-hxD1Y.

The Extension of Legal Personhood in Artificial Intelligence

Copyright 2019 The Authors. The purpose of this paper is to illuminate the main ethical, legal and social implications (ELSIs) concerning social humanoid robots that have their base in artificial intelligence (AI). The main dilemma highlighted touches upon the expansion of the concept of legal personhood, and the attribution of appropriate legal responses to govern the future proliferation of AI systems vis-à-vis social humanoid robots. The paper cautions on the need to carefully reflect on notions of personhood and human dignity for AI systems, balanced against the underlying representation of valuesand behaviors that may threaten to erode the human rights discourse. Additionally, it questions the wisdom of the broad expanse of the European legal response to the development and use of AI systems