New evidences from epileptic brain activity hint that our brain might be able to
generate holograms in a high dimension space of associative links - much like a recent
view of the universe as a hologram projected from hidden dimensions beyond space
The advantage of the 'holographic principle' is that when you cut hologram
into half you will have two smaller whole images from each half. This "whole in
every part" nature of holograms provides the brain with an entirely new way of
coding and decoding of information. For example, to produce in parallel multiple
copies of the same memory for associative information processing.
Inspired by the above, we present a new functional holography approach for
analyzing multi-channel recordings such as ECoG (electrocorticograph) recordings of
cortical brain activity and of individual neuron dynamics in cultured networks. The
common approach is to evaluate the matrix of correlations between the recorded
activities (inter-channels correlations). Ordinarily such matrices are mapped onto a
connectivity network between the channel positions in real space (their locations in
In our functional holography, the correlations are normalized by the
correlation distances - Euclidian distances between the matrix columns. Then, we
project the N-dimensional (for N channels) space spanned by the matrix of the
normalized correlations, or correlation affinities, onto a corresponding 4-D manifold
(3-D Cartesian space constructed by the 3 leading principal vectors of the principal
component algorithm + time ordering of the activity). The neurons are located by
their principal eigenvalues and linked by their original (not-normalized) correlations.
By looking at these holograms hidden causal motifs are revealed like the co-existence
of functional sub-networks in the space of affinities that might be connected with
initiation of seizure.
Studies of coupled cultured networks hint that the neuro-glia fabric provide the
'photographic film' for the holograms and that their generation and retrieval is
sustained by chemical waves generated by the glia cells when act as excitable media.
- Functional Holography of Complex Networks Activity From Cultures to the Human Brain
I.Baruchi, V.L. Towle, and E. Ben-Jacob,. Complexity, Volume 10, No 3, p. 38-51,(2005).
- Functional Holography of Recorded Neuronal Networks Activity
I. Baruchi and E. Ben-Jacob. Neuroinformatics , Volume 2, Issue 3, p. 333-352,(Fall 2004).