Erin Schuman: Brain Plasticity during Learning and Memory 5/9/2007 [56k modem] [cable/DSL] [broadband] 57 minutes Information we learn about our environment is stored at neurons, the connections between brain cells. Between neurons are synapses—points of contact and communication. In a recent Watson Lecture, Erin Schuman, professor of biology and executive officer for neurobiology at Caltech, explained how synapses exhibit plasticity by varying in their size, strength, and number. This plasticity contributes to our ability to learn and remember.