i-PerceptionNovember 7, 2020Jan Koenderink, Andrea van Doorn, Karl Gegenfurtner
How many colors are there? Quoted numbers range from ten million to a dozen. Are colors object properties? Opinions range all the way from of course they are to no, colors are just mental paint . These questions are ill-posed. We submit that the way to tackle such questions is to adopt a biological approach, based on the evolutionary past of hominins. Hunter-gatherers in tundra or savannah...
. The effect is most easily induced by viewing one's own reflection in a mirror. Using the pupil of the opposing eye as a fixation target, people can easily cross their eyes in free fusion to experience vivid rivalry. The resulting percept is of a prominent central "third" eye and two peripheral faces rivaling for perceptual dominance. We illustrate the process of achieving third-eye rivalry...
A sensory substitution device for blind persons aims to provide the missing visual input by converting images into a form that another modality can perceive, such as sound. Here I will discuss the perceptual learning and attentional mechanisms necessary for interpreting sounds produced by a device (The vOICe) in a visuospatial manner. Although some aspects of the conversion, such as relating...