According to the neuroscience research memory is regionally specialized and distributed in neural networks all over the brain. Memory is thus manifested in many different systems that are parallel and also intersect in specific regions like the thalamus, medial temporal lobe, cingulate cortex, or dorsolateral prefrontal cortex. Implicit memory (e.g. habit and motor and sensory perceptual memory) is memory whose learning is strengthened by repetition and cue dependent reaction. It is associated with corticostriatal-midbrain interactions. Explicit memory (e.g. declared memory that is deliberately learned) is memory whose learning is strengthened by repetitive retrieval and cue independent reaction reflecting successful internalization of memory. It is associated with initial corticohippocampal interactions and retrieval processes and later corticostriatal response with its automaticity.