Top down control accounts for gaze locations in a sidewalk navigation task
نویسندگان
چکیده
منابع مشابه
Learning selective top-down control enhances performance in a visual categorization task Top-down control in learning a categorization task
We model the putative neuronal and synaptic mechanisms involved in learning a visual categorization task, taking inspiration from single-cell recordings in inferior temporal cortex (ITC). Our working hypothesis is that learning the categorization task involves both bottom-up, ITC to pre-frontal cortex (PFC), and top-down (PFC to ITC) synaptic plasticity, and that the latter enhances the selecti...
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The simultaneous need for a wide angle of eld and high resolution has led to the use of spatially variant sensors in active vision systems. The use of such sensors however necessitates the existence of gaze control mechanisms for guiding the foveal high resolution region of the sensor to points of interest in the visual world. While bottom-up alerting cues such as motion have previously been us...
متن کاملSearching for “the Top” in Top-Down Control
Although numerous theoretical models implicate the prefrontal cortex (PFC) as a source of top-down control signals, empirical support is limited. In this review, we highlight direct evidence for this view of PFC function and discuss several lines of other supportive findings. Most evidence to-date is only suggestive due to methodological challenges in tracking the spatiotemporal dynamics of cor...
متن کاملModeling the Transition from Bottom-up to Top-Down Gaze Control Strategies in the Context of Gaze Following
1 Department of Computer Science and Engineering, University of California, San Diego, CA, USA ([email protected]) 2 Department of Cognitive Science, University of California, San Diego, CA, USA ([email protected], [email protected]) 3 Frankfurt Institute for Advanced Studies, Max-von-Laue Str. 1, 60437 Frankfurt am Main, Germany 4 Los Alamos National Laboratory; CCS-1, MS-B287, Los A...
متن کاملLearning selective top-down control enhances performance in a visual categorization task.
We model the putative neuronal and synaptic mechanisms involved in learning a visual categorization task, taking inspiration from single-cell recordings in inferior temporal cortex (ITC). Our working hypothesis is that learning the categorization task involves both bottom-up, ITC to prefrontal cortex (PFC), and top-down (PFC to ITC) synaptic plasticity and that the latter enhances the selectivi...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2004
ISSN: 1534-7362
DOI: 10.1167/4.8.803