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dap. devices that alter perception. Boxed Ego. Artificial autoscopy for fun and work. Alvaro CASSINELLI and Masatoshi ISHIKAWA Meta-Perception Group. Boxed ego. Autoscopy , hyper-stereo (miniaturized “avatar”) & time delay . I. Altered self-perception (body scheme, and “ego-location”).
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dap devices that alter perception Boxed Ego Artificial autoscopy for fun and work Alvaro CASSINELLI and Masatoshi ISHIKAWA Meta-Perception Group
Boxed ego Autoscopy, hyper-stereo (miniaturized “avatar”) & time delay
I. Altered self-perception (body scheme, and “ego-location”) • Pathological conditions (Alice in Wonderland syndrome, out-of-body experience, autoscopy, heautoscopy…) • Experiments in cognitive neurosciences (inverted goggles, rubber hand, TMS, etc) • Medially mediated perception (artistic experimentation with mirrors, video, art installations) • Human-computer interfaces (augmented perception, sensory substitution systems, teleprescence) Sensed presence and spatial distortions of body size can be induced by TMS
Out of body experience: from phantom limb to phantom body? • Phantom limbs can occur in non-amputated people • OBEs have a distinctive experiential character • a specific brain area involved (temporo-parietal junction)
Artificial OBE in a controlled environment: cognitive neurosciences O. Blanke research at the Laboratory of Cognitive Neuroscience, EPFL , Switzerland, (2007)
Artificially relocated body parts and telexistence Haptictelexistence (Tachi Lab) "Telesar" (Tachi Lab) Eliciting a true sense of tele-existence may be key to performance here
Explorations of the self in the media arts: the magic of the mirror…
…beyond the mirror Dan Graham’s «Present Continuous Past(s)», (1974) Bruce Nauman, «Live-Taped Video Corridor» (1970) ...point to a sensory-motor theory of the perception of “being” in time and space!
II. But can the sense of self can be considered a modality of perception? (in the sense of the sensory-motor theory of perception) Perception of what? The body scheme, the body image Phenomenology: there is something that it is to “be there” • But which sensory-motor knowledge is involved? Hypothesis: Probably (enactive) knowledge in all “classic” modalities of perception (visual, tactile, propioceptive and auditory), but not enacted the perceived object, but rather to the fact that there is a perceiver! Phenomenologically speaking, the felt self-presence (the “qualia” of being) is not an inference, but rather the knowledge you have that certain movements will affect sensorial input in a way compatible with the fact that you have a human body. This SMC-based hypothesis can accounts for dislocated self-perception a phenomena. Good grounding for practical design of devices that alter perception of the self.
An example practical application: autoscopic display Enhancement of training mirrors… Augmented awareness on public places (personal orientation and elimination of blind spots)
Conclusion “Sense of self” may result from an innate/learned capacity to enact sensory-motor knowledge and to recognize on these patters special egocentric features. Therefore it can be altered by artificially manipulating: - the structure of sensory-motor contingencies for each modality of perception and - the inter-modality contingencies (time correlations and delays!) Sense of Self may suffer from “perceptual illusions” such as “filling-in” body schema, attentional “self-less”… Devices that alter the perception of the self may enable a lot of experiments and have a lot of practical applications “Altered” is a matter of degree: the self has changed enormously with technology, and will continue to change (tranhumanism?)
