here we can follow the mouse's movements in real time is the sound you hear is neuron activity we know that there's a neuron discharge when the mouse is at a specific location. the place cells taken together create a kind of cognitive map in the brain phone with the mouse arrived at a particular location certain neurons discharge. it takes five to ten minutes to create a play cell map. then it serves as a memory image of the mouse around it looks at the phone the. police will. you know only if we believe that a neuron discharges when the mouse is at a certain place or thinks he has a particular high peak with we've also found that the same neuron can discharge when the mouse is asleep and it activates a specific memory and that is when he's dreaming about a place where he was. telling.