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Can I read V4 Receptive Field Dynamics as Predicted by a Systems-level Model of Visual Attention Using Feedback from the Frontal Eye Field on EtoBox?
V4 Receptive Field Dynamics as Predicted by a Systems-level Model of Visual Attention Using Feedback from the Frontal Eye Field by Fred H. Hamker; Marc Zirnsak is a Computer Science article available to read on EtoBox.
What is V4 Receptive Field Dynamics as Predicted by a Systems-level Model of Visual Attention Using Feedback from the Frontal Eye Field about?
Visual attention is generally considered to facilitate the processing of the attended stimulus. Its mechanisms, however, are still under debate. We have developed a systems-level model of visual attention which predicts that attentive effects emerge by the interactions between different brain areas. Recent physiological studies have provided evidence that attention also alters the receptive field structure. For example, V4 receptive fields typically shrink and shift towards the saccade target around saccade onset. We show that receptive field dynamics are inherently predicted by the mechanism of feedback in our model. According to the model an oculomotor feedback signal from an area involved in the competition for the saccade target location, e.g. the frontal eye field, enhances the gain of V4 cells. V4 receptive field dynamics can be observed after pooling the gain modulated responses to obtain a certain degree of spatial invariance. The time course of the receptive field dynamics in the model resemble those obtained from macaque V4.
Who reads V4 Receptive Field Dynamics as Predicted by a Systems-level Model of Visual Attention Using Feedback from the Frontal Eye Field?
It is typically read by researchers, students, and practitioners in Computer Science.
- Author
- Fred H. Hamker; Marc Zirnsak
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0893-6080)
- Published
- 2006
- Language
- EN
- Field
- Computer Science (Physical Sciences)