How does the discussion of the ventral striatum and the ventromedial prefrontal cortex help us understand why the brain is affected by the failure. The article LESSONS FROM FAILURE: WHY WE TRY, TRY AGAIN

it is the background information on the characters and setting explained at the beginning of the story. the exposition will often have information about events that happened before the story began. the exposition is often the very first part of the plot.

might need to ask questions people no or have read somthing about.

the group received an extra pound of butter for christmas.

the annex was delighted to hear that we'll all be receiving an extra quarter pound of butter for christmas.