Turning visual search time on its head

Turning visual search time on its head

Our everyday visual experience frequently involves searching for objects in clutter. Why are some searches easy and others hard? It is generally believed that the time taken to find a target increases as it becomes similar to its surrounding distractors. Here, I show that while this is qualitatively true, the exact relationship is in fact not linear. In a simple search experiment, when subjects...

Turning cell cycle entry on its head

New data on the relationship between two proteins, cyclin D and Rb, suggest that we need to re-evaluate our understanding of how cells enter into the cell cycle.

Optogenetics: Turning the Microscope on Its Head.

Look outside your window. You will likely see green plants, perhaps some yellow, pink, or white flowers, maybe a bird with blue, brown, or red in its feathers and eyes. The world is full of living color, and life has evolved a dizzying variety of chromophores for signaling and photoreceptors for sensing the dynamically changing photic environment. Scientists are now identifying these chromophor...

Resilient health care: turning patient safety on its head.

The current approach to patient safety, labelled Safety I, is predicated on a 'find and fix' model. It identifies things going wrong, after the event, and aims to stamp them out, in order to ensure that the number of errors is as low as possible. Healthcare is much more complex than such a linear model suggests. We need to switch the focus to what we have come to call Safety II: a concerted eff...

Turning nutrition on its head--Noakes gets his day.