Shadows may be “discounted” in human visual perception because they do not provide
stable, lighting-invariant, information about the properties of objects in the environment …

Animal camouflage provides some of the most striking examples of the workings of natural
selection, whether employed defensively to reduce predation risk, or offensively to minimise …

Reproduction is a critical period for birds as they have to cope with many stressful events.
One consequence of an acute exposure to stress is the release of corticosterone, the avian …

Simple everyday tasks, such as visual search, require a visual system that is sensitive to
differences. Here we report how observers perceive changes in natural image stimuli, and …

Despite the natural occurrence of global and local daylight changes in natural scenes, the
human visual system typically adapts well to these changes and develops stable colour …

How different are two images when viewed by a human observer? There is a class of
computational models which attempt to predict perceived differences between subtly …

The human color and luminance-driven systems appear to be mediated by mechanisms with
distinct spatio-temporal tuning properties, with the iso-luminant color-driven system …

The aim of this article is to inform and stimulate a proactive, multidisciplinary approach to
research and development in surveillance-based detective work. In this article we review …

Various visual functions decline in ageing and even more so in patients with Alzheimer's
disease (AD). Here we investigated whether the complex visual processes involved in …

Forests are a mosaic of light spectra, and colour signal efficiency might change in different
light environments. Local adaptation in Heliconius butterflies is linked to microhabitat use …