What does V4 do?
Visual area V4 is a midtier cortical area in the ventral visual pathway. It is crucial for visual object recognition and has been a focus of many studies on visual attention. However, there is no unifying view of V4’s role in visual processing.
What do V4 neurons respond to?
Neurons in area V4 are known to respond selectively to shape-related features, such as curvature and convexity (38), and this alone could account for differences in firing between the illusion-promoting and control stimuli.
What is a receptive field in neurons?
The receptive field (RF) of a neuron in the visual system is the region within the visual field in which stimulation can affect the neuron’s response.
What are receptive field properties?
The receptive field encompasses the sensory receptors that feed into sensory neurons and thus includes specific receptors on a neuron as well as collectives of receptors that are capable of activating a neuron via synaptic connections.
What does V5 do in the brain?
Area V5 of the visual brain, first identified anatomically in 1969 as a separate visual area, is critical for the perception of visual motion. As one of the most intensively studied parts of the visual brain, it has yielded many insights into how the visual brain operates.
What is Inferotemporal cortex?
Inferior Temporal (IT) Cortex is the cerebral cortex on the inferior convexity of the temporal lobe in primates including humans. It is crucial for visual object recognition and is considered to be the final stage in the ventral cortical visual system.
What is V5 in the brain?
Middle temporal visual area (V5) The middle temporal visual area (MT or V5) is a region of extrastriate visual cortex. In several species of both New World monkeys and Old World monkeys the MT area contains a high concentration of direction-selective neurons.
What is a receptive field example?
For example, it could be a hair in the cochlea or a piece of skin, retina, or tongue or other part of an animal’s body. Receptive fields have been identified for neurons of the auditory system, the somatosensory system, and the visual system.
What is the receptive field of a neuron quizlet?
The receptive field of a neuron is the part of the sensory world from which an adequate stimulation increases (excitatory) or decreases (inhibitory) a neuron’s activity. For a retinal ganglion cell, its receptive field is the area on the retina where light stimulation changes the cell’s response or firing rate.
What are the different types of receptive field?
Receptive field subregions: The area within the receptive field is subdivided into two regions, center and surround. There are two primary types of ganglion cell receptive fields: ON center/OFF surround cell: Flashing small bright spot in the center subregion increases the cell’s response.
What is area MT?
The middle temporal visual area (MT or V5) is a region of extrastriate visual cortex. In several species of both New World monkeys and Old World monkeys the MT area contains a high concentration of direction-selective neurons.