Emotion, motivation, olfaction, behavior, and memory, in humans, are mediated by the emotion, motivation, olfaction, behavior, and memory, in humans, are mediated by the frontal lobe of the cerebral cortex limbic system temporal lobes of the cerebral cortex occipital lobes of the cerebral cortex cerebellum

Limbic system

Explanation:

The limbic system is the part of the brain that is responsible for emotions, motivation and olfactory behavior. But it is primarily responsible for our emotional behavior This area includes the hypothalamus, amygdala and several other areas of the brain. It also helps in the formation of memories. There are many other areas also intact with the limbic system such as  

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answer; ( dementia );