Receptive-field dynamics in the central visual pathways

  title={Receptive-field dynamics in the central visual pathways},
  author={Gregory C. DeAngelis and Izumi Ohzawa and Ralph D. Freeman},
  journal={Trends in Neurosciences},

Figures from this paper

Automatic mapping of visual cortex receptive fields: A fast and precise algorithm

Spatiotemporal structure of complex cell receptive fields and influence of GABAergic inhibition

The results suggest that intracortical inhibition may contribute to improve the accuracy of visual signals encoded in neuronal activities, but is unlikely critical for determining the primary structure of complex cell RF.

The generation of receptive-field structure in cat primary visual cortex.

Neural Field Model of Receptive Field Restructuring in Primary Visual Cortex

The hypothesis that the observed RF sharpening is indeed mainly driven by input from LGN, not by recurrent intracortical connections is supported.

Receptive field structure varies with layer in the primary visual cortex

Comparisons between the structure of receptive fields recorded from the different layers of the cat's primary visual cortex suggest connections unique to each visual cortical layer are likely to serve distinct functions.

The dynamic spatio-temporal behavior of visual responses in thalamus and cortex.

This short review summarizes the different aspects which can influence the temporal firing patterns of cells in the visual thalamus (lateral geniculate nucleus, LGN) mainly by demonstrating how their inter-spike interval distributions will change and argues that the observed changes could serve to adjust the temporal and spatial resolution within the primary visual pathway to the different demands for information processing in an attentive as compared to a non-attentive state.

Reorganization of Receptive Fields of Cortical Field 21a Neurons and Formation of Responses to Moving Visual Stimuli

Using extracellular recording of spike activity from single neurons of field 21a of the cat neocortex, the spatial organization of receptive fields (RFs) of such cells after conditions of presentation of an immobile blinking light spot and moving visual stimuli is examined.

Spatiotemporal receptive fields of cells in V1 are optimally shaped for stimulus velocity estimation.

In this work, 93 simple and complex cell receptive fields were obtained from the recordings of different experiments made on cats and fitted with a three-dimensional Gabor model, so that cells are seen as minimizers of the Heisenberg uncertainty principle over both space and time.

Spatiotemporal properties of evoked neural response in the primary visual cortex

This thesis outlines a research project to build computational models of V1 that incorporate observations and constraints from an unprecedented range of experimental data sources, reconciling each data source with the others into a consistent proposal for the underlying circuitry and computational mechanisms.



Spatiotemporal organization of simple-cell receptive fields in the cat's striate cortex. I. General characteristics and postnatal development.

This study has studied the spatiotemporal receptive-field structure of 233 simple cells recorded from the striate cortex of adult cats and kittens at 4 and 8 wk postnatal and examined the postnatal development of spatial and temporal selectivity in the frequency domain.

Spatiotemporal organization of simple-cell receptive fields in the cat's striate cortex. II. Linearity of temporal and spatial summation.

Results suggest that both spatial and temporal summation within simple cells are approximately linear, and show that spatiotemporal receptive-field profiles obtained with the use of reverse correlation may be used to predict a variety of response properties for simple cells.

Spatiotemporal organization of cat lateral geniculate receptive fields.

It is suggested that retinal PE domains generage LGN PE and SI domains, while retinal SE domains generate LGN SE andSI domains.

Nonlinear directionally selective subunits in complex cells of cat striate cortex.

The extent to which the DS of a complex cell depends on spatially identifiable subunits within the RF is determined by studying responses to an optimally oriented, three-luminance-valued, gratinglike stimulus that was spatiotemporally randomized.

On temporal codes and the spatiotemporal response of neurons in the lateral geniculate nucleus.

The present work relates recent experimental studies of the temporal coding of visual stimuli to the measurements of the spatiotemporal receptive fields of neurons within the lateral geniculate of primate to predict the performance of a unit in the Walsh pattern discrimination task as quantified by mutual information.

Spatial receptive-field properties of direction-selective neurons in cat striate cortex.

Results indicate a systematic relationship between Dopt and the spatial frequency of a sinusoidal grating, which is optimal for that cell, consistent with the results of human psychophysical experiments on apparent motion.

Quantitative studies of single-cell properties in monkey striate cortex. I. Spatiotemporal organization of receptive fields.

The properties of single cells in striate cortex of the rhesus monkey, representing the visual field 2 degrees -5 degrees from the fovea, were examined quantitatively with stationary and moving stimuli and showed differences between S-type and CX-type cells.

Evidence of input from lagged cells in the lateral geniculate nucleus to simple cells in cortical area 17 of the cat.

The lagged/nonlagged dichotomy as it applies to simple cells in area 17 of the visual cortex is pursued, with striking resemblance to the distribution for LGN cells when only cells in or adjacent to geniculate recipient layers were considered.

Spatial summation in the receptive fields of simple cells in the cat's striate cortex.

1. We have examined the responses of simple cells in the cat's atriate cortex to visual patterns that were designed to reveal the extent to which these cells may be considered to sum light‐evoked