Chapter 6: Emotional Interaction in Design

Emotional Interaction in Design , focused on emotional interaction, explores how interactive technology both influences and detects human emotional states, relating these processes directly to behavior and the overall user experience in the field of Interaction Design. It introduces emotional design, which centers on creating products that purposefully evoke desired emotional responses, and affective computing, often termed emotional AI, which involves using sensing technologies and artificial intelligence to automatically recognize and interpret user emotions like happiness, fear, or frustration from facial expressions, voice quality, and body movements. A key theoretical framework for understanding this interplay is Don Norman’s three levels of emotional design: the visceral level (rapid, automatic judgments about appearance and sensory input), the behavioral level (focused on usability, function, and learned routines), and the reflective level (conscious thought related to meaning, personal value, and culture). Designers employ expressive interfaces, utilizing elements like colors, sounds, emojis, and virtual agents (such as the historic Happy Mac icon), to foster emotional connections and provide reassuring feedback, recognizing that aesthetically pleasing interfaces often enhance perceived usability and tolerance for minor issues. Conversely, the chapter details characteristics of annoying interfaces, which unintentionally elicit negative emotional reactions, leading to frustration or anger, often due to overly complex actions, vague error messages (like the 404 error), or intrusive, overly friendly agents, such as the widely disliked Microsoft Clippy. Furthermore, the discussion extends to persuasive technologies, which apply design techniques to influence and change user behaviors across various domains, including health, fitness, and energy conservation. Examples of persuasive systems include gamified devices like Pokémon Pikachu, which incentivize physical activity, or feedback mechanisms using emoticons to encourage lower domestic energy use based on social norms. Finally, the chapter examines anthropomorphism, the inherent human tendency to attribute human traits and personalities to inanimate objects or animals, which is heavily leveraged in the design of virtual agents, interactive toys (like Luvabella), and social robots (such as Zora) to make interactions more engaging and reduce anxiety. The use of affective computing raises important ethical questions regarding privacy and the appropriate social etiquette children should adopt when interacting with technology.