FYP 20/21 Week 8 Updates


Perceptual box

I am still in the midst of designing my “perceptual box” and fine tuning the details of my sensory experiments.


Yanagisawa, H., & Takatsuji, K. (2015). Effects of visual expectation on perceived tactile perception: An evaluation method of surface texture with expectation effect. International Journal of Design9(1).

Surface Texture

  • People perceive and/or predict a surface’s characteristics corresponding to each physical attribute through sensory information, a process that we call perceived features (eg. Surface roughness perceived through touch).
  • Using a combination of perceived characteristics of surface texture, people perceive a tactile quality, such as “nice to touch”.

Sensory modalities

  • During such sensory modality transitions, we expect or predict the perpetual experience that we might have through a subsequent sensory modality by first using a prior modality, such as in the case of expecting a particular tactile perception by first looking at a surface texture.
  • On the other hand, prior expectation also affect posterior perceptual experiences – a phenomenon known as the expectation effect.
  • 3 aspects of experiment:
  • Participants were asked to evaluate the tactile quality of a target object under three perceptual mode conditions:
    Visual expectation (V), Touch alone (T) and Touch following a visual expectation (VT)
  • To evaluate:
    • Perception of disconfirmation – difference between VT and V
    • Expectation effect – difference between VT and T
    • Perceptual incongruence – different between V and T

Evaluate Tactile feeling using four opposite adjective pairs (“nice to touch-unpleasant to touch”, “smooth-rough”, “hard-soft” and “sticky-slippery”) – Between each adjective pair was a scale comprised of five ranges. Participants responded to each adjective scale by marking the rating on a questionnaire sheet, which employed a semantic differential (SD) scale.


Things I want to explore when I finish constructing the perceptual box. I went back to look at my hypothesis for my project, and I would like to center my experiments through connecting the visual properties of light to the visual qualities of material, and see if a tactile quality can be associated.

  1. Playing with Rhythm
    Light quality: Rhythm?
    Visual quality: PatternTrying to connect how rhythmic/ flashing lights to a tactile effect

  2. Ryoji Ikeda – Test Pattern (2013)
  3. Playing with Colour
    Light quality: Frequency?
    Visual quality: ColourConnecting a texture (frequency) to colour

    Using touch sensors
  4. Playing with Colour
    Light quality: Intensity/ Diffusion
    Visual quality: Opacity/ TranslucencyTrying to connect force with sharpness of light



Slide potentiometer


MATERIAL PERCEPTION – Can we perceive/ infer material based on visual results of reflected light?

  • Playing around with material’s interaction with light, if light can be given visual forms/ textures
  • Recreate the textures/ find tactile similarities with physical materials

Build a hologram in my perceptual box:



Interesting Light phenomenon/ visual textures I noticed:

Ryoji Ikeda – Spectra (2014)


Reminds me of:

Interpretive flare display of unthought thoughts (2020) neugerriemschneider, Berlin Photo: Jens Ziehe



‘Touch’ in Art – What would trigger touch?

Last week, it was mentioned that I could look into works that trigger touch, but I missed out on the example that was given.

Vocab? – To find consensus between descriptions of how light is subjectively perceived

ISEA 2020 – Why Sentience?

DATA GLOVES Workshop 17-18 October

The “Data Gloves” were developed with the purpose of interacting with the VR environment “Human After”, a piece by Anni Garza Lau. Under the problem of the high cost of a set of commercial gloves, we realized that we had the ability to manufacture a pair of gloves with a very detailed ability to acquire information about the position of the fingers for a fraction of the price.


I am not sure how useful the gloves would be in terms of simulating haptic qualities, instead as a glove to obtain data but we will see how it goes.

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