DOPAMINE BY AGNES &AMIE ( A 2 )

What IS DOPAMINE?  It is a neurotransmitter (i.e. one of those chemicals that is responsible for transmitting signals in between the nerve cells (neurons) of the brain) that helps control the brain's reward and pleasure centers.

HOW DOES DOPAMINE WORKS IN THE BRAIN ?

FUNCTIONS OF DOPAMINE  stabilizes the brain activity,  regulated flow of information to other parts of the brain and  controls movement  Regulates emotional responses

HAVING TOO MUCH OR TOO LITTLE OF DOPAMINE.  Dopamine deficiency can result to Parkinson disease or anhedonia Symptoms are liably to be Fatigue, lack of motivation and depression  Having too much of Dopamine can result to schizophrenia hallucination. Symptoms can be The heart muscles increases the impluse rate and blood pressure from strength of contarction. Read more:

STUDY ABOUT DOPAMINE  Berridge and Kringelbach (2009). Aim To study which areas of brain that are involved in the subjective experience of pleasure. What the researcher found. They found out that the orbitofrontal cortex was active when people reported feeling pleasure. Conclusion They concluded that dopamine and the nucleus accumbens is perhaps rather involved in pleasure seeking.

 Aim: to investigate blood flow in the brains  What the researchers found: “brain system reward” was active.  Conclusion: they confirmed that the pre-experimental self reports supported a correlation between the attitudes towards the lovers brain activity. _the_brain_in_love.html FISHER ON DOPAMINE IN ADDICTION TO LOVE (2004)

SOURCES/REFRENCES       Psychology for the IB diploma by Jette Hannibal

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