a small area in the visual field which when stimulated with light elicits responses from a single cell in the visual system.
The region of the stimulus that, when stimulated, causes a change in the response of a sensory neurone.
The region of visual space to which neurons in the primary visual cortex are sensitive. go to glossary index
The area monitored by a single sensory receptor.
In sensory systems, the specific region of a sensory surface that when stimulated causes a change in activity of a neuron
a small region within the entire visual field
A map of the inputs to a single neuron, e.g., those parts of the skin of the hand that produce excitation or inhibition of a cortical neuron (antagonistic surrounds are especially common). The limited view of the world as seen by a single neuron.
The set of points at which specific stimuli can influence the excitability of an individual neuron. For the somatosensory system it is the area of skin which can affect the afferent neuron supplying it. For the visual system it is the area within the visual field which influences an individual sensory neuron. For the auditory system it is the set of sound frequencies which alter the excitability of individual afferent auditory neurons. "The peripheral receptive fields of sensory units innervating a sensory surface vary greatly in size. The numbers of innervating nerve fibers per unit area of a body part vary also, usually inversely with the sizes of peripheral receptive fields. This peripheral innervation density of a body part or, for example, of the retina varies directly with the volume of central nervous tissue, e.g., of the cerebral cortex, devoted to the representation of that part, as indeed it does with the use and capacity of the part as a sentient organ." (Mountcastle, Medical Physiology, Vol II)
A region of receptors that function together to send messages to the central nervous system.
The area of the periphery whose stimulation increases the firing of a neuron.
(of a neuron) The region of the visual field in which stimuli will affect the neuron's level of activity.
Of a neuron, the area on the retina from which the activity of that neuron can be influenced.
The retinal area in which visual stimulation affects a particular cell's firing rate.
Normal region within which application of a stimulus elicits a response; appli8ed to neurons or groups of neurons in the peripheral or central nervous system
The portion of the sensory surface where stimuli affect the activity of a sensory neuron.
The receptive field of a sensory neuron is a region of space in which the presence of a stimulus will alter the firing of that neuron. Receptive fields have been identified for neurons of the auditory system, the somatosensory system, and the visual system.