Tom Jacobs in Miller-McCune:
A German study finds our preferences regarding the placement of bedroom furniture reflect the safety concerns of our distant ancestors. According to the paper, just published in the online journal Evolutionary Psychology, our choice of room layout is remarkably consistent with the physical environment prehistoric men and women preferred.
University of Munich psychologists Matthias Spörrle and Jennifer Stich conducted an experiment featuring 138 volunteers, divided in half between men and women. (Median age was just under 30.) Each was presented with one of four floor plans for a bedroom.
Half of the rooms featured a door that opened to the right; the others had a door that opened to the left. Half had a window; the rest did not. Participants were presented with movable symbols representing items of furniture — a bed, table and chair — and asked to arrange the room to their liking.
Spörrle and Stich were curious to see whether their choices would reflect an ingrained urge to feel safe from predators.
More here.