The lateral geniculate nucleus (LGN) has often been treated in the past as a linear filter that
adds little to retinal processing of visual inputs. Here we review anatomical …

Understanding the functions of a brain region requires knowing the neural representations
of its myriad inputs, local neurons and outputs. Primary visual cortex (V1) has long been …

A common feature of the mammalian striate cortex is the arrangement of 'orientation
domains' containing neurons preferring similar stimulus orientations. They are arranged as …

Key points Extracellular spikes recorded in the visual cortex (Area 17/18, V1) are commonly
classified into either regular‐spiking (RS) or fast‐spiking (FS). Using multi‐electrode arrays …

Seminal studies of the thalamocortical circuit in the visual system of the cat have been
central to our understanding of sensory encoding. However, thalamocortical synaptic …

Visual information is already processed in the retina before it is transmitted to higher visual
centers in the brain. This includes the extraction of salient features from visual scenes, such …

Extracellular recordings were made from 642 units in the primary visual cortex (V1) of a
highly visual marsupial, the Tammar wallaby. The receptive field (RF) characteristics of the …

The perception of a visual stimulus can be markedly altered by spatial interactions between
the stimulus and its surround. For example, a grating stimulus appears lower in contrast …

Most neurons in the primary visual cortex (V1) of mammals show sharp orientation selectivity
and band-pass spatial frequency tuning. Here, we examine whether sharpening of the broad …

The “oblique effect” refers to the reduced visual performance for stimuli presented at oblique
orientations compared to those at cardinal orientations. In the cortex, neurons that respond …