Recent evidence has demonstrated that environmental sampling is a fundamentally
rhythmic process. Both perceptual sensitivity during covert spatial attention and the …

Ocular fixation is a dynamic process that is actively controlled by many of the same brain
structures involved in the control of eye movements, including the superior colliculus …

Classic studies of spatial attention assumed that its neural and behavioral effects were
continuous over time. Recent behavioral studies have instead revealed that spatial attention …

Covert spatial attention is associated with spatial modulation of neural activity as well as with
directional biases in fixational eye movements known as microsaccades. We studied how …

Visual brain areas exhibit tuning characteristics well suited for image statistics present in our
natural environment. However, visual sensation is an active process, and if there are any …

Inherent in visual scene analysis is a bottleneck associated with the need to sequentially
sample locations with foveating eye movements. The concept of a 'saliency …

The superior colliculus (SC) is a subcortical brain structure that is relevant for sensation,
cognition, and action. In nonhuman primates, a rich history of studies has provided …

Sensorimotor predictions are essential for adaptive behavior. In natural environments,
events that demand sensorimotor predictions unfold across many timescales, and …

Establishing a representation of space is a major goal of sensory systems. Spatial
information, however, is not always explicit in the incoming sensory signals. In most …

Attention can be" covertly" directed without eye movements; yet, even during fixation, there
are continuous microsaccades (MSs). In areas V4 and IT of macaques, we found that firing …