BCI - a choreographic matter

Duo project conceived by Mauricio van der Maesen de Sombreff & Eirini Kalaitzidi

‘BCI - a choreographic matter’ is a research of the possible ways in which the human brain can be choreographed & a research of the possible ways in which the generated brain waves can be transfigured into visual, sound and light materialities.

Brain Computer Interface (BCI) will track the electrical activity of a performer’s brain. This activity (brain waves oscillating), perceived as a disembodied dance power, will control the moving behaviour of a flock of birds (projected animation) as well as an accompanying sound and light environment.

This research project is meant to lead to an approx. 20’ long performance.

Two main dancing agencies will be emerging on stage: a human moving while engaging in various mental states in order to generate a wide range of brainwaves (focus, fatigue, problem solving, meditation) and a captivating digitalised flock of birds.

Brainwaves

Humans’ firing neurones, acting as electrical dipoles, generate small measurable electrical potentials that can be tracked through the use of an EEG. It is possible to identify different mental states based on the amplitude, frequency and source location of this electrical signals.

Brainwaves can be classified based on their frequency:

Gamma (32 - 100 Hz) The presence of this signal can be linked to activities such as problem solving, learning, or other cognitive processes.

Beta (13 - 32 Hz) Related states: Alert, normal alert consciousness, active thinking. The presence of this signal can be linked to activities such as active conversation, making decisions, solving a problem, focusing on a task, learning a new concept.

Alpha (8 - 13 Hz) Related states: Physically and mentally relaxed. This signal can often be found during activities such as yoga, just before falling asleep, while being creative.

Theta (4 - 8 Hz) Related states: Creativity, deep meditation, reduced consciousness and automatic tasks. This signal shows when one is performing a task that is so automatic that the mind can disengage from it e.g. brushing teeth or showering. Research has also shown a positive association of Theta waves with memory and creativity.

Delta (0.5 - 4 Hz) Suppressed Delta waves indicate deep sleep, restfulness, and conversely excitement or agitation.