The lighter side of advertising: investigating posing and lighting biases.

People tend to display the left cheek when posing for a portrait; however, this effect does not appear to generalise to advertising. The amount of body visible in the image and the sex of the poser might also contribute to the posing bias. Portraits also exhibit lateral lighting biases, with most images being lit from the left.

Evidence for the influence of testosterone in the performance of spatial navigation in a virtual water maze in women but not in men.

Testosterone (T) may be associated with enhanced spatial navigation in a number of rodent species, although the nature of the relation is equivocal. Similarly, numerous studies in humans generally have found that T is associated with enhanced spatial ability on a variety of paper and pencil tasks that may relate to navigational ability. However, relatively few studies have reported effects of T on navigational ability in humans.

Photographer preference or image purpose? An investigation of posing bias in mammalian and non-mammalian species.

Portraits of human adults typically exhibit leftward biases--that is, they depict individuals with their left cheek prominently featured. The purpose of this study was to determine if photographs of human infants and photographs of non-human animals also display these leftward biases. We observed significant leftward biases in photographs of infants and non-human animals.

When advertising turns "cheeky"!

Portraits typically exhibit leftward posing biases, with people showing more of their left cheek than their right. The current study investigated posing biases in print advertising to determine whether the product advertised affects the posing bias. As the posing bias may be decreasing over time, we also investigated changes in posing biases over a span of more than 100 years.