receptive field


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receptive field

that part of the retina of which the photoreceptors (rods and cones) pertain to a single optic nerve fiber. The response of a neuron to stimulation of its receptive field depends on the type of neuron and the part of the field that is illuminated; an "on-center" neuron is stimulated by light falling at the center of its receptive field and inhibited by light falling at the periphery; an "off-center" neuron reacts in exactly the opposite fashion; that is, it is inhibited by light falling at the center of its receptive field. In either case, the net response depends on a complex switching action in the retina. When an entire receptive field is equally illuminated, the response of receptors at the center of the field predominates.

receptive field

A description of the effective stimuli of a given neuron. For sensory receptor neurons, the receptive field is the type of effective stimulation (e.g., light, sound, mechanical pressure) and the range of sensitive locations (e.g., center of visual field, left auditory field, tip of right thumb).
See also: field

receptive field

an area of the body surface over which a single sensory receptor, or its afferent nerve fiber, is capable of sensing stimuli. In some body area, e.g. face, ears, front paws, the sensitive areas are small; over the back they are larger.
References in periodicals archive ?
1973) Receptive field organization of bipolar and amacrine cells in the goldfish retina.
The general setting of the problem of statistical learning is to estimate some function, which depends on an unknown distribution in a (probabilistic) visual receptive field, as previously explained.
First, they abandoned the square and bar patterns that others thought might be important features in the receptive fields, adopting instead a set of abstract grid patterns called Walsh functions (see illustration).
Synaptic connections, receptive fields, and patterns of activity in the tiger salamander retina, Invest.
However, as a general rule of thumb, the further up the visual pathway, the larger the receptive field sizes of neurons are.
Coincidence detection between the output of a cell and the delayed outputs of other cells with nearby receptive fields is mathematically equivalent to computing the spatial crosscorrelation between the current visual frame and a previous visual frame on a region-by-region basis.
We conclude, first, that the excitatory center of the receptive field in the lateral eye increases at night.
Suppression of ventilatory reafference in the elasmobranch electrosensory system: Medullary neuron receptive fields support a common mode rejection system.
Some chapter topics are brain vesicular monoamine transporters and apoptosis, semantically mediated integration of cognition, control of cortical synaptic receptive fields by neuromodulation and patterned sensory input, links between Down syndrome and Alzheimer's, and mind wandering in the default state.
The most likely possibility is that higher order motion detectors with large receptive fields, presumably in MST--Medial Superior Temporal--(Tanaka & Saito, 1989), integrate local (smaller receptive fields) signals to build more complex motions (e.
These cells mediate the formation of the inhibitory surround portion of the classic center-surround receptive fields of retinal neurons (1).