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Need help with my writing homework on Emotion Theories. Write a 1250 word paper answering; Over the years of research, several theories regarding how the neuroanatomy of emotion functions scientifically extend from right hemisphere hypothesis, which suggests that same neural systems causes all emotions, specifically with the right hemisphere of the brain as responsible in processing emotions (Wager, Phan &amp. Liberzon, et al., 1998. Killgore and Yurgelun-Todd, 2007). Regardless of the strong data supporting the major role for the right hemisphere on emotions, a number of substantial evidence from research revealed a new pattern of brain asymmetry. The second theory such as the Valence Model proposes a combination of some brain systems (Elfenbein, Mandal, Ambady, et al., 2004). According to the theorists supporting this hypothesis, the right hemisphere of the brain processes negative emotions, while the left hemisphere, for positive emotions (Killgore and Yurgelun-Todd, 2007). The purpose of this paper is to discuss and compare the two different theories of brain and emotion and establish evidence from empirical research in favor of the alternative Valence hypothesis.