Complex sentence: However LeDoux asserts that though the self is multifaceted, synapses are the underlying mechanism by which the brain receives, stores, and retrieve personality that can be affected by social, genetic, spiritual factors.
Split into simpler sentences: However LeDoux asserts that though the self is multifaceted, that synapses are the underlying mechanism by which the brain receives, stores, and retrieve personality. And those synapses can be affected by social, genetic, spiritual factors.