Elaborado con IA a partir del resumen de los autores
Capítulo que examina cómo la dimensionalidad de agentes con presencia encarnada (ESA) afecta la influencia de sus recomendaciones en la toma de decisiones humana. El estudio compara un robot tridimensional en espacio físico con agentes bidimensionales en pantalla, en tareas de selección de color. Los resultados muestran que la congruencia dimensional entre el agente, el entorno de comunicación y los objetos manipulados determina la efectividad de la recomendación: el robot en entorno 3D tuvo mayor influencia que los agentes en pantalla, mientras que la función de seguimiento del robot, aunque produce efecto residual, no es suficiente por sí sola. El análisis sugiere que los humanos reconocen rápidamente el entorno de comunicación en que opera el agente encarnado, implicando que el diseño de comportamientos de ESA debe considerar explícitamente la coherencia dimensional del contexto.
Puntos clave
La congruencia dimensional entre el agente encarnado, su entorno de comunicación y los objetos a manipular determina la efectividad de sus recomendaciones en decisiones humanas.
Los robots en espacios físicos tridimensionales ejercen mayor influencia que agentes bidimensionales en pantalla, incluso sin función de seguimiento, sugiriendo que la dimensionalidad es factor central.
El marco visual en entornos bidimensionales enfatiza la coherencia entre pantalla, agente y opciones de selección, reforzando el impacto de la recomendación del agente en pantalla.
La función de seguimiento del robot produce efecto residual en la toma de decisiones pero no es suficiente para generar significativamente el efecto de dimensionalidad del robot.
El diseño de comportamientos de agentes encarnados debe considerar el reconocimiento humano del entorno de comunicación, no solo las características morfológicas del agente.
Para quién: Investigadores y diseñadores de sistemas de interacción humano-robot y agentes virtuales interesados en cómo la coherencia dimensional afecta la persuasión y la toma de decisiones en contextos de comunicación mediada por tecnología.
Resumen de los autores
Figure 5 shows that the dimensionality of the ESA causes differences in the recommendation's effect on user decision-making. The 3D body was not always superior to the 2D body for recommendation, and on-screen agents seem to have weak points, too. Those differences cannot be explained only by the advantages or disadvantage of pointing. In the 2D world condition, the color region was presented on the computer display. The display was in 3D space, so the color region was presented in the 3D space. From this point of view, there should be no difference between the 2D and 3D world conditions and therefore no difference in the effect. There must therefore be some other reasons. The results changed according to the combination of the location pointed to and the ESA's dimensionality. This seems to be evidence supporting the importance of consistency in the dimensionality between communication partners and the environment consisting of the pointing location and manipulated objects. In the 2D world condition, the color region was displayed on the CRT and color name options that should be selected were also on the CRT. In the 2D world and on-screen agent case, all were contained in the frame of the computer display. The frame might have emphasized the appropriate consistency and the on-screen agent might have had a strong influence through its recommendation. In the 3D world condition, the communication environment was in the 3D physical space. In the 3D world and robot case, the color region and color name options were contained in the physical 3D space, although they were physically separated and there was no frame. In addition, the effect of robot's recommendation was much greater than that of the onscreen agent's. The robot's body might have had a strong influence for emphasizing appropriate consistency to 3D space without a visual frame. In addition, behavior in communication contains ambiguous meanings and depends on the situation and communication environment (Sperber and Wilson, 1993). So, humans tend to quickly recognize an environment where the communication partner exists for interpretation. The results of our experiment seem to provide evidence that humans tend to quickly recognize communication environments even in interaction with an ESA, and also suggest that we must not forget the communication environment in designing ESA behavior. 4.1 Tracking function effect in 3D world case. Figure 8 shows that the influence of a robot without a tracking function is still larger than both 2D agent's and no-recommendation case, although the difference is not significant. The result suggests that the dimensionality still works even if a robot has no tracking function, although the effect is reduced. And, 3D shape with predetermined motions is not sufficient for significantly producing the robot's dimensionality effect on human decision-making. In addition, those results also suggest that only a tracking function is not sufficient for
