The dorsal stream is proposed to be involved in the guidance of actions and recognizing where objects are in space. Also known as the parietal stream, the "where" stream, or the "how" stream, this pathway stretches from the primary visual cortex (V1) in the occipital lobe forward into the parietal lobe.
Epinephrine, which is also referred to as adrenaline! Think in a stressful situation where your fight or flight kicks in, you would get an adrenaline rush if that helps at all
