What is a receptive field in the visual system?
RECEPTIVE FIELDS, FROM THE RETINA TO THE CORTEX. Each of the neurons in the various layers of the retina “covers” an area in your field of vision. This area in space where the presence of an appropriate stimulus will modify the activity of this neuron is called the receptive field of this neuron.
What is the receptive field of an image?
According to Wikipedia , the receptive field (of a biological neuron) is “the portion of the sensory space that can elicit neuronal responses, when stimulated”. The sensory space can be defined in any dimension (e.g. a 2D perceived image for an eye).
What is the current definition of receptive field?
For any cell in the visual system, from the retina to the brain, there is an area out in the visual field that will produce a change in the response in that cell. This is the definition of the receptive field.
What does the receptive field of a visual cell refer to quizlet?
The receptive field of a visual cell refers to the. Retinal area that affects the firing of the cell. The structure of the eye that absorbs light processes images and sends visual information to the brain. Retina.
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 a receptive field quizlet?
Receptive field. – Receptive field – region of a sensory surface that, when stimulated, causes a change in the firing rate of a neuron that “monitors” that region of the surface; the receptive field of an RGC is the region of the retina occupied by the photoreceptors to which the RGC is connected.
What is an example of receptive field?
Why receptive field is important?
The concept of the receptive field is central to sensory neurobiology, because it provides a description of the location at which a sensory stimulus must be presented in order to elicit a response from a sensory cell.
What is the best definition of the receptive field of an afferent neuron?
Terms in this set (26) the best definition of the “receptive field” of an afferent neuron. The area of the body that, when stimulated, leads to activity in that particular afferent neuron.
What is the receptive field of the receptor?
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 happens when the entire receptive field of an on center cell is covered by a spot of light ie both inner and outer portions of the receptive field )?
What happens when the entire receptive field of an ON-center cell is covered by a spot of light (i.e. both inner and outer portions of the receptive field)? Cells firing stays the same.
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 the receptive field?
See Article History. Receptive field, region in the sensory periphery within which stimuli can influence the electrical activity of sensory cells.
What is the difference between retinal ganglion and receptive fields?
Receptive fields are similar to those of ganglion cells, with an antagonistic center-surround system and cells that are either on- or off center. Receptive fields of cells in the visual cortex are larger and have more-complex stimulus requirements than retinal ganglion cells or lateral geniculate nucleus cells.
What is the receptive field of the retina composed of?
For example, the receptive field of a ganglion cell in the retina of the eye is composed of input from all of the photoreceptors which synapse with it, and a group of ganglion cells in turn forms the receptive field for a cell in the brain.
What is the receptive field of a sensory neuron?
The receptive field of an individual sensory neuron is the particular region of the sensory space (e.g., the body surface, or the visual field) in which a stimulus will modify the firing of that neuron.