1 Future-Spot spread model assumes that future oil spot price is determined by a combination of current spot price and current futures price, and a properly constructed spread between these two current prices can predict the future oil spot price. 2  Mathematically, the model could be presented as:
corticospinal tract The nervous system tract that conducts impulses from the brain to the spinal cord. It contains mostly motor axons and is made up of two separate tracts in the spinal cord: the lateral corticospinal tract and the anterior corticospinal tract.
The main descending tracts are the lateral vestibulospinal tract from the lateral vestibular nucleus and the medial vestibulospinal tract from the medial vestibular nucleus. The lateral vestibular tract starts in the lateral vestibular nucleus and descends the length of the spinal cord on the same side.igure 11.5 shows details of the lateral vestibulospinal tract. As the name suggests, this tract arises in the lateral vestibular nucleus. The tract descends through the inferior vestibular nucleus, giving this nucleus its salt and pepper appearance.