Anticipation of moving stimuli by the retina
Article Abstract:
Neural activity in the brain is evoked by a flash of light. There is a delay of 30-100 milliseconds due to slow process of visual transduction in photoreceptors. It is suggested that the visual cortex uses delayed visual data from the eye to determine the trajectory of a moving object. Such anticipation of moving stimuli is reported to begin in the retina. A moving bar was found to cause a moving wave of spiking activity in retinal ganglion cells. The population activity travelled closed to the leading edge of the moving bar.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Segregation of object and background motion in the retina
Article Abstract:
Research reveals that in the visualization of detecting moving objects within a stationary scene a subset of retinal ganglion cells respond to motion under conditions of wider surroundings moving with a different trajectory. Data indicate that a retinal circuitry invokes pooling over nonlinear interneurons and that suppression by global image motion involves amacrine cells.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
User Contributions:
Comment about this article or add new information about this topic:
Dynamics predictive coding by the retina
Article Abstract:
Retinal ganglion cells convey the visual image from the eye to the brain and generally encode local differences in space and changes in time rather than the raw image intensity. This can be seen as a strategy of predictive coding, adapted through evolution to the average image statistics of the natural environment.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Detection of human influence on twentieth-century precipitation trends. Uncertainty in climate change
- Abstracts: Leptin regulation of bone resorption by the sympathetic nervous system and CART. The complexities of skeletal biology
- Abstracts: Repression of RNA polymerase III transcription by the retinoblastoma protein. A role for Saccharomyces cerevisiae histone H2A in DNA repair
- Abstracts: Targeting the DNA repair defect in BRCA mutant cells as a therapeutic strategy. CYLD is a deubiquitinating enzyme that negatively regulates NF-(kappa)B activation by TNFR family members
- Abstracts: Loss of the cylindromatosis tumour suppressor inhibits apoptosis by activating NF-(kappa)B. Control of spontaneous and damage-induced mutagenesis by SUMO and ubiquitin conjugation