The document discusses various ways that visual perception can be manipulated or altered, including through the use of materials that absorb most light, inducing hallucinations through flickering lights and brain stimulation, and analyzing facial movements and expressions. It also references artworks that explore the boundaries of visual perception.

1. The boundaries of
visual perception
In art and science
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3. Seeing nothing
Hostage pt. 1 is like seeing nothing: the nano black
absorbs around 99.7% light and reflects only 0.3%.
Hostage pt 1, Frederik de Wilde
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4. Decent into limbo, Anish Kapoor
Hostage pt. 1, Frederik de Wilde
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5. Interacting senses
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6. CREW, Terra Nova
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7. The (e)motion tracker
We analyze six segments of the face. The lines show
motion vectors.
J. Klug, B. Otten, B. Nordhjem
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10. Revelations by flicker
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11. Ivana Franke – ‘Seeing with Eyes Closed’
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12. Kurt Hentsclager, FEED
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13. Hallucination-inducing vs. control stimulation:
fMRI connectivity between LGN and cortex changed
from a positive to negative relationship while EEG
connectivity between occipital and other brain
regions increased
Switch by LGN neurons from tonic to burst mode, hallucinations
occur because of temporary “blindness”. During burst firing
mode, certain aspects of the visual field do not reach the visual
brain because of the uncoupling of activity in the LGN and
cortex.
Ffytche, D. (2008). The hodology of hallucinations. Cortex
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