Handbook of sensory physiology, Vol. VII/3: Central processing of visual information. A: Integrative functions and comparative data. B: Visual centers in the brain

1974 ◽  
Vol 37 (4) ◽  
pp. 447-448
Author(s):  
V. Braitenberg
Keyword(s):  
Visual Information ◽  
Comparative Data ◽  
Sensory Physiology ◽  
Central Processing ◽  
The Brain ◽  
Processing Of Visual Information

Central Processing of Visual Information A: Integrative Functions and Comparative Data

1973 ◽  
Author(s):  
H. Autrum ◽  
P. O. Bishop ◽  
V. Braitenberg ◽  
K. L. Chow ◽  
R. L. De Valois ◽  
...  
Keyword(s):  
Visual Information ◽  
Comparative Data ◽  
Central Processing ◽  
Processing Of Visual Information

scholarly journals Teasing apart the extraction and the processing of visual information in the brain

2017 ◽  
Vol 17 (10) ◽  
pp. 972
Author(s):  
Laurent Caplette ◽  
Karim Jerbi ◽  
Frédéric Gosselin
Keyword(s):  
Visual Information ◽  
The Brain ◽  
Processing Of Visual Information

Visuomotor Performance in Children with Infantile Nephropathy Cystinosis

1996 ◽  
Vol 82 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Kathleen M. Scarvie ◽  
Angela O. Ballantyne ◽  
Doris A. Trauner
Keyword(s):  
Visual Processing ◽  
Visual Information ◽  
Control Group ◽  
Standard Score ◽  
Developmental Test ◽  
Visual Motor ◽  
The Brain ◽  
Progressive Cognitive Impairment ◽  
Processing Of Visual Information ◽  
Qualitative Analyses

Infantile nephropathy cystinosis is a genetic metabolic disorder in which the amino acid cystine accumulates in various organs, including the kidney, cornea, thyroid, and brain. Despite normal intellect, individuals with cystinosis may have specific impairments in the processing of visual information. To examine further the specific types of deficits in visual processing found in individuals with cystinosis, we administered the Developmental Test of Visual-motor Integration to 26 children with cystinosis (4 to 16 yr. old) and 26 matched controls. The cystinosis group achieved a significantly lower standard score, raw score, and mean ceiling than did the control group. Qualitative analyses showed that in the cystinosis group, size within errors and rotation errors were more prevalent than in the control group. Correlational analyses showed that with advancing age, the cystinosis subjects tended to fall further behind their chronological age. Our data, together with the findings of previous studies, suggest that the visuospatial difficulties in children with cystinosis may be due to inadequate perception or processing of visually presented information. Furthermore, the increasing discrepancy with age may reflect a progressive cognitive impairment, possibly as a result of cystine accumulation in the brain over time.

scholarly journals Retinal Axon Interplay for Binocular Mapping

2021 ◽  
Vol 15 ◽  
Author(s):  
Coralie Fassier ◽  
Xavier Nicol
Keyword(s):  
Visual Information ◽  
Ganglion Cells ◽  
Mouse Retina ◽  
Retinal Ganglion ◽  
Genetic Approach ◽  
Developmental Mechanisms ◽  
Competitive Mechanisms ◽  
The Brain ◽  
Retinal Axon ◽  
Processing Of Visual Information

In most mammals, retinal ganglion cell axons from each retina project to both sides of the brain. The segregation of ipsi and contralateral projections into eye-specific territories in their main brain targets—the dorsolateral geniculate nucleus and the superior colliculus—is critical for the processing of visual information. The investigation of the developmental mechanisms contributing to the wiring of this binocular map in mammals identified competitive mechanisms between axons from each retina while interactions between axons from the same eye were challenging to explore. Studies in vertebrates lacking ipsilateral retinal projections demonstrated that competitive mechanisms also exist between axons from the same eye. The development of a genetic approach enabling the differential manipulation and labeling of neighboring retinal ganglion cells in a single mouse retina revealed that binocular map development does not only rely on axon competition but also involves a cooperative interplay between axons to stabilize their terminal branches. These recent insights into the developmental mechanisms shaping retinal axon connectivity in the brain will be discussed here.

Visual Substitution Systems: Control and Information Processing Considerations

1975 ◽  
Vol 69 (7) ◽  
pp. 300-304
Author(s):  
Raymond M. Fish
Keyword(s):  
Information Processing ◽  
Visual System ◽  
Visual Information ◽  
Control Mechanisms ◽  
Direct Stimulation ◽  
Systems Control ◽  
Display Systems ◽  
The Brain ◽  
Processing Of Visual Information ◽  
Stimulation Of

A detailed discussion of the visual mechanisms found in the higher vertebrates is used as the basis for exploring the problems found in creating visual substitution systems. Specific attention is given to the control mechanisms used in the visual system and to the processing of visual information in the retina and brain. The three types of substitution systems discussed are tactual display systems, audio display systems, and those involving direct stimulation of the brain using electrodes.

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