Uni-polar is one form of depression bi-polar is mania and depression
polar- the resistance to permit a current from flowing, for example, seratonin, a chemical in the brain
polarity-the separation; alignment, or orientation of something into two opposed poles, the either of two extremes
The positively charged end of one molecule to the negative end of another or the same molecule
The prefontal cortex is smaller and functions less, compared to who doesn't have bi-polar disorder. A brain structure involved in "executive" functions such as solving problems and making decisions-a brain circuit. The connections between brain regions are important for shaping and coordinating functions such as forming memories, learning, and emotions.