Title :
Spatial information processing in higher area of visual system
Author_Institution :
Pavlov Inst. of Physiol., Acad. of Sci., St. Petersburg, Russia
Abstract :
A study of receptive fields of neurons of prestriate-cortex cats has shown that they consist of different zones from one to nine. It was also shown that the orientation and spatial-frequency characteristics of different neurons depend on the number of simultaneously stimulated zones, and the properties of different zones depend on the characteristics of different elements in the striate cortex. Every zone of the receptive field has its own representation in the visual field. A mathematical analysis of the characteristics of the receptive field and different zones showed that the characteristics of the whole receptive field are a result of spatial interaction (algebraic summation) observed between different zones. This mechanism underlies the formation of the main properties of prestriate cortex neurons, including their ability pertaining to nonlinearity and reconstruction
Keywords :
brain; cellular biophysics; physiological models; vision; algebraic summation; nonlinearity; orientation characteristics; prestriate cortex neurons; prestriate-cortex cats; receptive fields; reconstruction; spatial information processing; spatial interaction; spatial-frequency characteristics; visual system; Cats; Extracellular; Eyes; Information processing; Mathematics; Mechanical factors; Neurons; Physiology; Testing; Visual system;
Conference_Titel :
Neuroinformatics and Neurocomputers, 1992., RNNS/IEEE Symposium on
Conference_Location :
Rostov-on-Don
Print_ISBN :
0-7803-0809-3
DOI :
10.1109/RNNS.1992.268568
