%0 Generic %D 2011 %T Spiking Neural P systems with several types of spikes %A Mihai Ionescu %A Gheorghe Paun %A Mario J. Pérez-Jiménez %A Alfonso Rodríguez-Patón %C Seville, Spain %I Fénix Editora %P 183-192 %S Proceedings of the Ninth Brainstorming Week on Membrane Computing %U http://www.gcn.us.es/9BWMC/volume/12multiAlfonso.pdf %X With a motivation related to gene expression, where enzymes act in series, somewhat similar to the train spikes traveling along the axons of neurons, we consider an extension of spiking neural P systems, where several types of \spikes" are allowed. The power of the obtained spiking neural P systems is investigated and the modeling of gene expression in these terms is discussed. Some further extensions are mentioned, such as considering a process of decay in time of the spikes. %8 02/2011