Motivation (for example, do sexual desires, eating, wanting/liking etc. change when people suffer from this disorder? How?) 2. Emotion and stress (What do we know about changes in emotions or stress levels in this disorder?) 3. Sleep (which sleep patterns are affected in your chosen disorder? How? Why do they think sleep patterns change in this disorder? How is it treated?) 4. Learning, memory and perception (again, do these change if people suffer from the disorder you’ve chosen to investigate?) 5. Neurotransmitters and brain areas (which brain areas and neurotransmitters are usually affected in your chosen disorder?)