Dopamine is one of many important neurotransmitters in brain tissue, these neurotransmitter chemicals interact with each other and relay chemical messages from neuron to neuron as they pass from synapse to synapse. Dopamine acts as a precursor for other neurotransmitters including adrenaline. In the frontal lobe of the brain Dopamine helps control the flow of neuronal information to other ares of the brain. Incoherent thought may be one symptom of Dopamine abnormalities. Dopamine tends to balance out another neurotransmitter called serotonin. When serotonin levels are low, dopamine levels rise and vice versa. An over abundance of dopamine may lead to paranoid type behavior, the person may be overly suspicious of other people. The person may isolate themselves because of feelings of mistrust. This interferes with normal social interactions and can have negative impacts on social and love relationships.