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PurposeThe paper aims to consider competing accounts of perception and to examine their potential to support design activity that seeks to extend and enrich perception using interface technologies. The interfaces will enable the direct perception of electromagnetic phenomena that are not now considered to be directly available to humans.Design/methodology/approachTwo models are considered. According to one, the standard view, perception is of an external world known by means of information flowing into an organism from it as conditioned by the organism's biological sensory modalities; according to the other, the enactive view, perception occurs by means of learning to differentiate oneself from the world by undertaking activities, by learning and mastering sensorimotor contingencies.FindingsThe paper presents preliminary results of design work based on enactive cognition and argues that the results, in turn, re‐inform and reinforce the theory by the introduction of novel perceptual phenomena that cannot be accommodated within the standard view of perception.Practical implicationsThe project, rather than seeking an instrumental utility, though this may occur, instead strives to enable the bringing forth of a richer world. Its objective is epistemic rather than pragmatic.Originality/valueThe paper presents a reflection on the role of design in the construction of theory.

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This paper describes our process in conducting research toward better understanding of the experience and perception of luminous colors in architectural contexts. Our intention is to contribute to a body of knowledge useful for designers by introducing a designerly way of working into an otherwise academic research approach. Luminous color influences our perception of form, space, and ambiance. The use of such color in architectural design has increased significantly over the past two decades, and with the advent of light-emitting diodes (LEDs), this trend is rapidly accelerating. However, LEDs produce luminous color in a different manner than traditional lighting systems. Identical-appearing colors can have different spectral compositions. Current work in health and perception sciences demonstrates that these different spectra can have distinct physiological and neurological effects. Current studies in different academic research fields into luminous color cannot be translated easily into a format relevant to architectural design. We therefore look to ways of studying the phenomenon using hybrid methods that would be consistent with design disciplines and goals. Efforts include structured experimental studies at a large scale to enable participants to experience different vantage points, peripheral perceptions, and free locomotion. The objective is to listen to the phenomenon and let it guide the research. We are following a process and developing research methods that are at a scale and in contexts appropriate to architectural applications. Although we borrow qualitative and quantitative methods from other disciplines for our individual studies, the overall goal is to remain fluid and open, to go beyond such established methods, structuring the endeavor as much as possible as a design process. Our approach is less structured than laboratory research, but targeted to be more ecologically and architecturally valid.

The idea of the project reported here was to design a system that builds on touch to enable people with severe hearing impairments to “listen” to music through a process called sensory substitution. The goal was to transform the auditory parameter space into one that is adequate for haptic perception. The approach reported here builds on (i) the design of a haptic display, a tabletop device with 8–24 actuators that can be driven individually, (ii) machine learning algorithms, and (iii) a psychophysical study to determine which music cues can be perceived through touch. The latter was necessary because vibrotactile perception is not yet well understood in the context of music perception. The double-blind study analyzes how vibrotactile stimuli contribute to the perception, cognition, and distinction of sounds in human participants who have been trained versus those who have not. In order to ensure that normal-hearing participants could not hear sounds radiated from the haptic display, sound isolating headphones were used to playback pink noise during the experiment.