We tested whether eye color influences perception of trustworthiness. Facial photographs of 40 female and 40 male students were rated for perceived trustworthiness. Eye color had a significant effect, the brown-eyed faces being perceived as more trustworthy than the blue-eyed ones.
{ 1 | 2. Richard Avedon }
{ Daniel Shea }
Cerebral cortex has a very large number of testosterone receptors, which could be a basis for sex differences in sensory functions. For example, audition has clear sex differences, which are related to serum testosterone levels. Of all major sensory systems only vision has not been examined for sex differences, which is surprising because occipital lobe (primary visual projection area) may have the highest density of testosterone receptors in the cortex. We have examined a basic visual function: spatial and temporal pattern resolution and acuity. […]
Across the entire spatio-temporal domain, males were more sensitive, especially at higher spatial frequencies; similarly males had significantly better acuity at all temporal rates. […]
We suggest that testosterone plays a major role, leading to different connectivities in males and in females. But, for whatever reasons, we find that males have significantly greater sensitivity for fine detail and for rapidly moving stimuli. One interpretation is that this is consistent with sex roles in hunter-gatherer societies.
{ Biology of Sex Differences/NCBI | Continue reading }
We examined the possible sex differences in color appearance of monochromatic lights across the visible spectrum. There is a history of men and women perceiving color differently. However, all of these studies deal with higher cognitive functions which may be culture-biased. We study basic visual functions, such as color appearance, without reference to any objects. […]
There were relatively small but clear and significant, differences between males and females in the hue sensations elicited by almost the entire spectrum. Generally, males required a slightly longer wavelength to experience the same hue as did females.
image { Jaymes Sinclair }
Bees at a cluster of apiaries in northeastern France have been producing honey in mysterious shades of blue and green, alarming their keepers who now believe residue from containers of M&M’s candy processed at a nearby biogas plant is the cause.
Devising marking systems (signs & etc.) which can be easily understood by anyone, anywhere, and in any language, is never going to be an easy task. Now imagine that on top of this, the systems have to remain intact and effective for the next 10,000 years. Specifically to discourage inadvertent intruders at a large-scale nuclear waste repository.
Just such a daunting task was evaluated by two teams co-ordinated by the US Sandia National Laboratories in 1992. They produced a 351-page report detailing their findings: Expert Judgment on Markers to Deter Inadvertent Human Intrusion into the Waste Isolation Pilot Plant [PDF | 20MB].
oil on canvas { Johannes Kahrs, Untitled (four men with table), 2008 }
{ Progress in Automatic Giraffe Recognition | Improbable Research | Detecting, Localizing and Recovering Kinematics of Textured Animals | PDF }
{ The artworks presented are typified by their transformation of a functioning musical composition or mapping document from a sound-based performance into a work of visual art. | Render Visible | 29 Wythe Ave, Brooklyn, NY 11211 | Reception: Friday, October 5, until October 28 | Photo: Hannah Whitaker }
The tumor that appeared on a second scan. The guy in accounting who was secretly embezzling company funds. The situation may be different each time, but we hear ourselves say it over and over again: “I knew it all along.”
The problem is that too often we actually didn’t know it all along, we only feel as though we did. The phenomenon, which researchers refer to as “hindsight bias,” is one of the most widely studied decision traps and has been documented in various domains, including medical diagnoses, accounting and auditing decisions, athletic competition, and political strategy. […]
Roese and Vohs propose that there are three levels of hindsight bias. […] The first level of hindsight bias, memory distortion, involves misremembering an earlier opinion or judgment (”I said it would happen”). The second level, inevitability, centers on our belief that the event was inevitable (”It had to happen”). And the third level, foreseeability, involves the belief that we personally could have foreseen the event (”I knew it would happen”).
images { 1. Joao Penalva | 2 }
{ Renhui Zhao | Martin Honert }
