The brain has evolved to transform sensory information in the environment into neural
representations that can be used for perception and action. Higher-order sensory cortical …

Taking a comparative approach, data from a range of visual species are discussed in the
context of ideas about mechanisms of motion detection. The cellular basis of motion …

We explore the effects of short-term synaptic depression on the temporal dynamics of V1
responses to visual images by constructing a model simple cell. Synaptic depression is …

The visual cortex represents stimuli through the activity of neuronal populations. We
measured the evolution of this activity in space and time by imaging voltage-sensitive dyes …

The responses of neurons in lateral geniculate nucleus (LGN) exhibit powerful suppressive
phenomena such as contrast saturation, size tuning, and masking. These phenomena …

Neurons in primary visual cortex (V1) are thought to receive inhibition from other V1 neurons
selective for a variety of orientations. Evidence for this inhibition is commonly found in cross …

The responses of neurons in the primary visual cortex (V1) are suppressed by mask stimuli
that do not elicit responses if presented alone. This suppression is widely believed to be …

How intracortical recurrent circuits in mammalian sensory cortex influence dynamics of
sensory representation is not understood. Previous methods could not distinguish the …

Detecting visual features in the environment, such as motion direction, is crucial for survival.
The circuit mechanisms that give rise to direction selectivity in a major visual center, the …

Nearly all models of direction selectivity (DS) in visual cortex are based on feedforward
connection schemes, where geniculate input provides all excitatory synaptic input to both …