Absorbing-state phase transitions 1 Amines 1 Biologically inspired models 1 Biomimetics 1 Cognitive systems 1 Critical behaviour 1 Critical dynamics 1 Criticality (nuclear fission) 1 Learn+ 1 Neural networks 1 Neural-networks 1 Neurons 1 Reinforcement learning 1 Self-organized criticality 1 Spike timing dependent plasticities 1 Synchronization 1 Synchronization transitions Theoretical study 1