“Press the button if you notice a change in what you see.Keep the button pressed for the duration of the change.” See post on Mirror Gaze experiment.. http://antonyhall.net/blog/mirror-gaze-experiment-msp/
Tag: hallucination
Mirror Gaze Experiment @MSP
I have been working with Manchester Science Partnerships to develop a range of workshops for their customers, the resident companies that use the park. The first session was the 'mirror gaze experiment'. During the mirror gaze experiment [MGE] participants are asked to stare at their own reflection in a mirror in a nearly dark room. An outline of the head is visible as a faint silhouette. In this state of partial sensory deprivation, the brain struggles to make sense of the information it sees. Forms and shapes begin to emerge as if from nowhere. For many observers, these develop into vivid visual hallucinations “monsters, archetypical faces, faces of relatives, and animals” (Caputo, 2012; Bortolomasi et al., 2014). This
Emergent Strange faces
https://www.youtube.com/watch?v=cs48nJo3ukU&feature=youtu.be Emergent strange face from recent workshop at Manchester Science Park A night vision camera captured video during the experiment from behind the mirror[see diagram here]. This used the program Isadora to detect movement using a ‘difference filter’ and building up an image using 'shimmer' and 'motion blur' filters with a long decay rate. An image builds up based on the collective movements of all 3 participants. A collective strange face. Emergent strange face from Proximity project Emergent strange face from Proximity project
Concerning the inwardly generated image
Mirror gaze experiment
The mirror gaze experiment requires the participant to sit in a near dark room and to stare at their own reflection for a set amount of time while listing to white noise. After only a short amount of time most people experience powerful illusions of facial distortion, grossly exaggerated features, faces of animals, the face of a lion or Darth Vader for example. These emerge as if from nowhere, disappearing at the slightest movement or eye blink, before manifesting new forms. These flowing cascades of illusory effects can elicit powerful emotional responses. In my own research, the mirror gaze experiment has resulted in significant illusory experiences across the full range of participants. I documented the way in which the illusory experience
Fish-brain-machine / Radiona workshop
After constructing the Fish-brain-machine PCB circuits we spent some time experimenting and describing the hallucinogenic visuals created by the stroboscopic light. The ping pong balls over the eyes diffuse the LED light, making for a more intense effect - and enabling use with eyes open. Here they describe some of the effects including seeing colours and 'a strange experience' of seeing with only one eye - I get this exact same feeling when using it. It is also hard to know if your eyes are open or closed. [See also Re-mapping the senses workshop ] https://www.youtube.com/watch?v=Lwne5xICLkI
Fish-brain-machine
As part of my Enki exhibition at Kapellica Gallery in Ljubljana 2012, I developed a related perceptual illusions and brain hacks workshop with Marc Dusseiller [Hackteria], as part of the gallery’s Biotech program. We came up with the idea to make a special issue circuit for the workshop and we set to work designing a circuit the encapsulated the Enki project in miniature. After a couple late nights, we came up with this super cool PCB design. Marc worked hard to create a fully functional efficient design, which was also aesthetically pleasing. The outline of the fish is also the ground in the circuit. This has to be the most ultra minimal brain-machine available to build. 6 components. We spent further
Strange face illusion with two-way Mirror feedback
“… a quiet room dimly lit by a 25 W incandescent light. The lamp was placed on the floor behind the observer so that it was not visible either directly or in the mirror. A relatively large mirror (0.5 m60.5 m) was placed about 0.4 m in front of the observer. The luminance of the reflected face image within the mirror was about 0.2 cd mÿ2 and this level allowed detailed perception of fine face traits but attenuated colour perception…The task of the observer was to gaze at his/her reflected face within the mirror. Usually, after less than a minute, the observer began to perceive the strange-face illusion…” Giovanni B Caputo, Perception, 2010, volume 39, pages 1007 – 1008 2010
Blind drawing of hand
Blind drawing of hand starting from the left and using a continuous line, before and after experiments. Could this exercise be used as a measure of "proprioceptive drift" before and after 'Rubber hand illusion' type experiments? I will be exploring this idea soon with the research group at BEAM lab...
James Turrel – Light Reignfall
[vimeo 75419053 w=640 h=360] James Turrell's Light Reignfall @LACMA - Andrew van Baal James Turrell's Light Reignfall Light Reignfall is a work from his series of perceptual cells, inside the participant is exposed to a uniform homogenous field of modulated light. A combination of sensory overstimulation, yet deprived of recognisable forms or space, hallucinatory effects are experienced. “Assisted by an attendant, an individual viewer enters a spherical chamber on a sliding bed. A program of saturated light (operated by a technician) surrounds the viewer for twelve minutes, allowing the visitor to experience the intense, multi-dimensional power of light and the complex seeing instrument of the human eye.” "James Turrell (b. 1943, Los Angeles), a key artist in the Southern California Light and Space movement
God Helmet
Neurologist Michael Persinger created the God Helmet, an actual helmet modified with electrical coils that can create electromagnetic fields in the wearer's temporal lobes that induces "religious" experiences in the people who put it on. "This is a device to investigate whether religious, spiritual, and mystical experiences had a natural rather than a supernatural source. He speculates that we are somehow programmed so that they can generate religious experiences via our brain's internal processes." I was interested in this experiment because of its use of sensory deprivation and the fact it would be relatively easy to recreate [see my DIY neurostimulation attempt 2009] for my Enki project. My plan was to drive it with frequencies generated by my electric fish [a low
Auditory illusion
Diana Deutsch developed some fascinating auditory illusions. These include the phenomenon of 'speech to song' whereby repeating loops of spoken word suddenly begin to sound like a song. In another illusion, 'phantom words' new words emerge from repeating fragments of words. To experience these all you need are headphones as the a stereo effect is essential, here is the link to her work.… Speech to song http://deutsch.ucsd.edu/psychology/pages.php?i=212 Phantom Words http://deutsch.ucsd.edu/psychology/pages.php?i=211 https://www.youtube.com/watch?v=EWzt1bI8AZ0 A nice example of sine wave speech from Joe Banks [Disinformation] has written about psychoacoustics in his book https://rorschachaudio.com/ I was lucky to meet him at The Sensorium of Animals workshop. "The McGurk effect" is a perceptual illusion that mixes a sound with the visual cue of a different sound, We see the mouth move and hear/see a mismatched sound, check out what happens... https://www.youtube.com/watch?v=aFPtc8BVdJk https://www.youtube.com/watch?v=7uHDMc4TEU8 This
Enki Manchester Science Museum
Some of the early experiments for the Enki project at Museum of Science and Technology Manchester 2007... We recorded brainwave data and monitored the behaviour of the electric fish during the experiment. The electrical activity of the fish is experienced as sound and light via ENKI (a stroboscopic high frequency led placed close to eyelid) and the natural binaural frequencies produced by the interaction and communication between Black Ghost Knife fish. The participant's bio-electric field was connected to the aquarium allowing the fish to sense a human (bio)electric image or presence. Museum of Science and Industry Manchester, 7th October 2006
My experience of the ‘strange face illusion’
I had read about this experiment by which staring at one's own reflection in a mirror in a darkened room for some time, can induce vivid hallucinations. For purposes of research, I had to try it. I found my bathroom could meet the following requirements... "... a quiet room dimly lit by a 25 W incandescent light. The lamp was placed on the floor behind the observer so that it was not visible either directly or in the mirror. A relatively large mirror (0.5 m60.5 m) was placed about 0.4 m in front of the observer. The luminance of the reflected face image within the mirror was about 0.2 cd mÿ2 and this level allowed detailed perception of fine face traits but
Inverted vision experiments
An early experiment in 'perceptual plasticity' was conducted by Psychologist George Stratton in1896. He used his inverted vision goggles, over a period of 8 days, and over time adapted to the point where he was able to function normally. When the glasses were removed, it took some time for him to adapt back to seeing the world as normal without them. See also A lesser-known experiment over three days in 1899 used a set of mirrors to view his whole body as if tilted by 90 degrees. He describes interesting motor control anomalies and even an experience which he describes as an 'out of body experience'. Currently, I am searching for more information and documentation on this experiment. Theodor Erismann (1883-1961) and Ivo Kohler
Clay hand experiment #1
Working again with Lizzi Lewis of BEAM Lab and Manchester Science Museum we developed a workshop based on the 'Rubber Hand Experiment'. As we had to work with a large number of people and we didn't have funding to get loads of rubber hands. So we made the hands in the workshop with clay and used gloves full of different materials, sand, gel, lentils, etc. This had some interesting outcomes, that warranted further research... As you can see the hands were diverse in form, for the illusion to be effective the hand does not need to be true to life necessarily. Some hands were made purposefully alien for experiments and seemed to work effectively. I wondered if participants are more likely
DIY Neuro stimulation
Reposted from my other blog 2009... I think the discussion around Michael Persinger's God helmet experiment was really interesting. I had to act on this and investigate the realm of experimental psychology further. I got in touch with him to ask some questions about the technology and the experimental process. I asked if I could make an array electromagnetic coils with oscillating magnetic field could generate similar effects. Which he seemed to think was feasible. I decided to make a modified version of the god helmet to work with my Enki interface. Here is a view my DIY neuro-stimulation device there are 4 coils which oscillate with magnetic frequencies, I have been using MAX MSP to drive these using electrical pulses derived from the
ENKI exhibition at Kapellica Gallery
10/2012– 01/2013 Enki [Solo show] Kapellica Gallery, Ljubljana, Slovenia Enki experiment 5 Possibly the final showing of the ENKI project ENKI is a series of experiments in bio-interfacing between humans and certain types of Electrogenic Fish .. Ultimately this is achieved through psycho-acoustic audio and visual entrainment as a means of modulating human emotional state. During this process, bio-electrical activity is monitored and used as a means to create a feedback loop between organisms. The research aims to study the interaction between tiny bio-electrical fields of both species [human and fish] specifically the way in which these fields modulate and the means of controlling them. It also aims to discover if it is possible to create a harmonious state of interaction that can
Amplitude Modulation Workshop
I met Martin Howse in 2009 when he invited me to do a workshop for his micro research series in Berlin. At the time he had a fantastic apartment with a large garage space for a studio. The large table at its centre became sprawled with electronics by the end of the day. I had the opportunity to take a look at some of his projects, wonderful hand-drawn circuits burnt and encrusted that looked more like remnants from some other device of unknown function. For this workshop we investigated Amplitude Modulation, turning light into sound, use of the LM chips as an amplifier and using light sensors as an input, and making LEDs and lasers transmit sounds and signals through light