easy question

[joker]

List and distinguish between the cognitive and behavioural roles of the two cerebral hemispheres.

Okay, I am having a little trouble contrasting between the cognitive and behavioural functions undertaken by brain structures. I am particularly having trouble listing some behavioural functions. Anybody got any ideas?

[minilunchbox]

Right hemisphere controls motor function on the left side of the body.
Right hemisphere does dancing (spatial patterns).

Left hemisphere controls motor function on the right side of the body.
Left hemisphere does more complex movement.