Two Complementary Models of Human Perception: Two-dimensional Holographic and Three-dimensional Realistic and Relationship between Them  Alexander Egoyan (Department of Biomechanics and Computer Technologies, Georgian State University of Physical Education and Sport, Tbilisi, Georgia)   C15

We are discussing two complementary approaches to brain processes: the first one is based on the concept of two-dimensional elastic membrane recently introduced by the author (A. Egoyan. TSC 2011), while the second one is three-dimensional and uses two-dimensional elastic quasi-membranes to explain the holistic physical processes in the brain. Elastic quasi-membranes aren't real objects but have the geometry similar to that of real elastic membranes. Only one elastic membrane (quasi-membrane) responsible for qualia is embedded into the brain of the selected organism. We argue that two models cannot be distinguished from each other using experimental methods: both models are equally valid - the first one has a phenomenological character and the second one is physical. In both models, we use the mechanism of gravitational modulation (A. Egoyan. TSC 2015): it is supposed that particles in the human brain neurons produce gravitation collectively in the form of gravitational waves with modulated amplitudes and frequencies. Brain microtubules are considered as possible gravitational modulators - sources of gravitational modulation. Gravitational modulation may be associated with information integration: the greater is the amplitude of the modulation, the higher is the level of information integration. Elastic membranes (quasi-membranes) try to occupy energetically favorable positions around brain microtubules with large enough amplitude of gravitational modulation. Gravitational modulation can have a significant effect on the brain processes: in spite of the weakness of gravitation itself, the periodical change of the masses of elementary particles caused by gravitational modulation will affect electromagnetic interactions between the particles depending on the strength of modulation. Gravitational modulation will try to preserve quantum coherence in the brain microtubules and support quantum computations. According to the first model the elastic membrane responsible for perception serves as the mediator between the region surrounded by the membrane and the outside region. As a result, two regions interact in a holistic way: the holistic character of the interaction is mediated by elastic deformations (stretching and/or squeezing) of the elastic membrane. The second model also considers interactions between two regions holistically using a quasi-membrane and quasi-particles, but in this case the interactions are mediated by "Platonic values" embedded in space-time geometry. The squeezed parts of the elastic quasi-membrane correspond to the most active and stable regions inside the brain neurons involved in perception. The first holographic model explains perception through the elastic oscillations of the two-dimensional elastic membrane: for example, frequencies are supposed to be responsible for the feeling of colors and amplitudes for the feeling of a distance. The second three-dimensional realistic model describes qualia as being the property of holistically connected (for example, through the wave-function) regions populated by elementary particles involved in the process of perception: qualia may be described by vibrations of the two-dimensional elastic quasi-membrane surrounding these regions. The two models represent two well-known scientific methods: the first one, the phenomenological approach proposed by Goethe and the second one, the experimental method accepted in science. The methods are complementary and when properly combined can help us find physical explanation to many consciousness phenomena.