Planaria Turbellaria 2 nonhuman 2 Algorithms 1 Animals 1 Article 1 Behavior analysis 1 Conditioning 1 Diffusion 1 Gap Junctions 1 Gap junction 1 Information 1 Intercellular Junctions 1 Invertebrate learning 1 Ions 1 Memory 1 Models, Biological 1 Morphogenesis 1 Morphology 1 Neurotransmitter Agents 1 Physiological 1 Planarians 1 Reaction-diffusion 1 Signal Transduction 1 agents interacting with transmitter, hormone or drug receptors 1 algorithm 1 anatomy and histology 1 animal 1 article 1 behavioral research 1