In order to tackle in a dfferent light the challenging question: "What are the vectors of information in the brain activity?", the talk will present a spiking neuron network simulation that can help understanding the mechanism of multiple trace memory for information storage and retrieval. Well supporting the theory of dynamical cell assemblies, polychronous groups [Izhikevich - Neural Computation, 2006] could be the "shapes" of complex spatiotemporal phenomena.