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there are crucial differences between the right hemisphere of the brain and the left. The left brain is the thinking brain as it is highly verbal and analytical. It operates as a conscious emotion regulation system that can modulate low to medium arousal. It is the domain of cognitive strategies as it processes highly verbal emotions such as guilt and worrisome anxiety. In contrast, the right hemisphere is the emotional brain. It processes all of our intense emotions, regardless of whether they are negative, such as rage, fear, terror, disgust, shame and hopeless despair, or positive such as excitement, surprise, and joy. When our level of emotional arousal escalates the left hemisphere goes off-line and the right hemisphere dominates. Our right brain enables us to read the subjective state of others through its appraisal of subtle facial (visual and auditory) expressions and other forms of nonverbal communication. The right hemisphere is more holistic than the left, holding many different possibilities simultaneously. Dreams, music, poetry, art, metaphor and other creative processes originate in the right hemisphere. The first critical period of development of the right brain begins during the third trimester of pregnancy and this growth spurt continues into the second year of life. It is primarily the right brain which is shaped by our early relational environment and which is crucial for the development of emotional security. Around two months after birth the right anterior cingulate comes on-line, meaning that it allows for more complex processing of social-emotional information than the earlier maturing amygdala. It is responsible for developing attachment behavior. Starting from about tenth months after birth, the highest level of the emotional brain, the right orbitofrontal cortex, becomes active. It continues developing for the next twenty years and remains exceptionally plastic throughout our entire life span. During the second year of life the right orbitofrontal cortex establishes strong, bidirectional connections with the rest of the limbic system. Once these connections are established it then monitors, refines, and regulates amygdala-
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