scispace - formally typeset
Search or ask a question
Topic

Receptive field

About: Receptive field is a research topic. Over the lifetime, 8537 publications have been published within this topic receiving 596428 citations.


Papers
More filters
Journal ArticleDOI
18 Aug 1995-Science
TL;DR: In experiments described here, neuronal activity was monitored in the supplementary eye field of macaque monkeys making eye movements to the right or left end of a horizontal bar and neurons were found to fire differentially as a function of the end of the bar to which an eye movement was made.
Abstract: Object-centered spatial awareness--awareness of the location, relative to an object, of its parts--plays an important role in many aspects of perception, imagination, and action. One possible basis for this capability is the existence in the brain of neurons with sensory receptive fields or motor action fields that are defined relative to an object-centered frame. In experiments described here, neuronal activity was monitored in the supplementary eye field of macaque monkeys making eye movements to the right or left end of a horizontal bar. Neurons were found to fire differentially as a function of the end of the bar to which an eye movement was made. This is direct evidence for the existence of neurons sensitive to the object-centered direction of movements.

219 citations

Journal ArticleDOI
TL;DR: The organization of part of the primary somatosensory cortex was examined in anesthetized raccoons at 2, 8, or 16 weeks after the normal peripheral input to this region of cortex had been removed by amputation of the fifth digit, suggestive of extensive anatomical changes either within the cortex itself or at subcortical levels.
Abstract: The organization of part of the primary somatosensory cortex was examined in anesthetized raccoons at 2, 8, or 16 weeks after the normal peripheral input to this region of cortex had been removed by amputation of the fifth digit. Electrophysiological recordings were made in and around the cortical area representing the fifth digit. Eight intact animals were used to verify that this specific area could be accurately localized on the basis of the sulci and to determine the normal response characteristics of this area. The results from nine animals with the fifth digit removed provided evidence for a gradual reorganization of the cortical area which had been functionally denervated. At 2 weeks postamputation the field was almost totally unresponsive to sensory input. At 8 weeks many sites were responsive to high intensity stimulation of rather extensive regions of the hand. At 16 weeks the cells fired more readily to peripheral stimulation than at 8 weeks and tended to have smaller, more restricted receptive fields. The location of receptive fields in this latter group suggested that the fifth digit area was taken over primarily by input from the fourth digit. The time course of this reorganization is suggestive of extensive anatomical changes either within the cortex itself or at subcortical levels.

219 citations

Journal ArticleDOI
13 Apr 2001-Science
TL;DR: Examples of multiplication by neurons or neural circuits are scarce, although many computational models use this basic operation, and a multiplication of separate postsynaptic potentials tuned to ITD and ILD can account for the subthreshold responses of these neurons toITD-ILD pairs.
Abstract: Examples of multiplication by neurons or neural circuits are scarce, although many computational models use this basic operation. The owl's auditory system computes interaural time (ITD) and level (ILD) differences to create a two-dimensional map of auditory space. Space-specific neurons are selective for combinations of ITD and ILD, which define, respectively, the horizontal and vertical dimensions of their receptive fields. A multiplication of separate postsynaptic potentials tuned to ITD and ILD, rather than an addition, can account for the subthreshold responses of these neurons to ITD-ILD pairs. Other nonlinear processes improve the spatial tuning of the spike output and reduce the fit to the multiplicative model.

219 citations

Journal ArticleDOI
TL;DR: It is suggested that area V2 plays an important role in integrating information about color, motion, and form, and by this integration of stimulus attributes a cue invariant representation of the visual world might be achieved.
Abstract: We investigated the representation of color in cortical area V2 of macaque monkeys, and the association of color with other stimulus attributes. We measured the selectivity of individual V2 neurons for color, motion, and form. Most neurons in V2 were orientation selective, about half of them were selective for color, and a minority of cells (about 20%) were selective for size or direction. We correlated these physiological measurements with the anatomical location of the cells with respect to the cytochrome oxidase (CO) compartments of area V2. There was a tendency for color-selective cells to be found more frequently in the thin stripes, but color-selective cells also occurred frequently in thick stripes and inter-stripes. We found no difference in the degree of color selectivity between the different CO compartments. Furthermore, there was no negative correlation between color selectivity and selectivity for other stimulus attributes. We found many cells capable of encoding information along more than one stimulus dimension, regardless of their location with respect to the CO compartments. We suggest that area V2 plays an important role in integrating information about color, motion, and form. By this integration of stimulus attributes a cue-invariant representation of the visual world might be achieved.

219 citations

Journal ArticleDOI
TL;DR: The discovery of cyclopean neurons in striate cortex, at early stages of the processing neural network for stereoscopic vision, provides a new insight of the basic neural mechanisms underlying binocular depth perception.

219 citations


Network Information
Related Topics (5)
Visual cortex
18.8K papers, 1.2M citations
95% related
Neuron
22.5K papers, 1.3M citations
91% related
Synaptic plasticity
19.3K papers, 1.3M citations
87% related
Hippocampal formation
30.6K papers, 1.7M citations
86% related
Hippocampus
34.9K papers, 1.9M citations
84% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023137
2022310
2021168
2020157
2019176
2018193