Arnold,

In reading your paper on the retinoid system, http://eprints.assc.caltech.edu/355/:

"A particularly striking finding of hemispatial neglect in patients with brain lesions involving the right temporal-parietal-occipital junction (Bisiach and Luzzati, 1978) also lends support to the retinoid model of spatial representation. In this study, patients were asked to imagine that they were standing in the main square in Milan which was a very familiar setting for them. They were first instructed to imagine themselves facing the cathedral and to describe what they could see in their “mind’s eye.” They reported a greater number of details to the right than to the left of their imaginary line of sight, often neglecting prominent features on the left side. When they were asked to perform the same imagery task, facing away from the cathedral, they were able to report previously neglected details within the right half of the imaginal perspective but ignored items in the left half that they had reported just a few moments before."

What's interesting is that recognition of details to the left affirms a principle of retail marketing, namely when retailers design a store, they base it on the principle that when customers enter a store, they tend to walk to the left.  Case in point is my local pharmacy/retail store. When you enter the store, the high profit cosmetic items are immediately to the left with the pharmacy counter in the extreme rear of the store and the necessity food items like milk, eggs, bread etc on the extreme right side of the store.  When my teenage daughter and friends enter the store they immediately go to the cosmetics area where they can easily spend $20 on lip gloss and eyeliner.

Our vision and the left side of our being is wired to the right brain lobe and the right side to the left lobe of course. The left side of our mind is wired for logicality and speech which is our dominant hemisphere for normal experience. When a person (especially a young person) enters a store (or Disneyland), the right side of the brain which seeks experience causes them to go left while the parent may go right to buy milk and bread.