Functional magnetic resonance imaging (fMRI) techniques are based on the assumption
that changes in spike activity are accompanied by modulation in the blood oxygenation level …

It is well established that neurons in the retinorecipient layers of superior colliculus (SC), the
mammalian homologue of the optic tectum of other vertebrates, are extremely sensitive to …

We have examined the influence of 'feedback'projections from extrastriate visual cortical
area 21a on the responses of neurons in area 17 of the cat, by cooling area 21a to 5–10° C …

The cortical visual hierarchy communicates in different oscillatory ranges. While gamma
waves influence the feedforward processing, alpha oscillations travel in the feedback …

The pulvinar is the largest extrageniculate visual nucleus in mammals. Given its extensive
reciprocal connectivity with the visual cortex, it allows the cortico-thalamocortical transfer of …

The feedback effect of activity of area 21a on orientation maps of areas 17 and 18 was
investigated in cats using intrinsic signal optical imaging. A spatial frequency-dependent …

Optical imaging based on intrinsic signals is a powerful tool for in vivo studying functional
organization of various cortices. Here, the functional architecture of orientation-sensitive …

It is often suggested that the oblique effect, the well-known phenomenon whereby both
humans and animals are visually more sensitive to vertical and horizontal contours than to …

Background Visual perception involves information flow from lower-to higher-order cortical
areas, which are known to process different kinds of information. How does this functional …

Visual neural plasticity and V1 saliency detection are vital for efficient coding of dynamically
changing visual inputs. However, how does neural plasticity contribute to saliency detection …