Parietal Cortex Regulates Visual Salience and Salience-Driven Behavior
نویسندگان
چکیده
منابع مشابه
Attention, intention and salience in the posterior parietal cortex
Selecting visual targets for saccadic eye movements is a vital step in sensorimotor processing. This selection is made on the basis of target salience: a saccade tends to be made to the most interesting part of the visual "eld. Both bottom-up and top-down processes have been postulated to contribute to salience, but the exact mechanisms by which some areas of the visual "eld are rendered to be ...
متن کاملSalience maps in parietal cortex: Imaging and computational modeling
Models of spatial attention are often based on the concept of a salience map. In computational cognitive neuroscience, such maps are implemented as a collection of nodes with self-excitation and lateral inhibition between all nodes (competitive interaction map). Here, we test some critical predictions of this idea. We argued that task demands, more precisely the level of attention required, can...
متن کاملAdaptation and visual salience.
We examined how the salience of color is affected by adaptation to different color distributions. Observers searched for a color target on a dense background of distractors varying along different directions in color space. Prior adaptation to the backgrounds enhanced search on the same background while adaptation to orthogonal background directions slowed detection. Advantages of adaptation we...
متن کاملSalience of visual parts.
Many objects have component parts, and these parts often differ in their visual salience. In this paper we present a theory of part salience. The theory builds on the minima rule for defining part boundaries. According to this rule, human vision defines part boundaries at negative minima of curvature on silhouettes, and along negative minima of the principal curvatures on surfaces. We propose t...
متن کاملDeep Salience: Visual Salience Modeling via Deep Belief Propagation
Visual salience is an intriguing phenomenon observed in biological neural systems. Numerous attempts have been made to model visual salience mathematically using various feature contrasts, either locally or globally. However, these algorithmic models tend to ignore the problem’s biological solutions, in which visual salience appears to arise during the propagation of visual stimuli along the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Neuron
سال: 2020
ISSN: 0896-6273
DOI: 10.1016/j.neuron.2020.01.016