The Mechanism Underlying the Formation of Activity-Dependent Thalamocortical Projection

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Neural activity is well known to play an important role in neural circuit formation. However, the mechanism is largely unknown. We studied the role of neural activity in axonal branch formation, focusing on the thalamocortical projection in the mammalian brain. The result shows that both activities of growing thalamic axons (presynaptic) and their target cortical neurons (postsynaptic) promote axon branching. Evidence also suggests the underlying molecular mechanisms.