scholarly journals Explaining intertrial priming from the visual code

2015 ◽  
Vol 15 (12) ◽  
pp. 1256
Author(s):  
Wouter Kruijne ◽  
Martijn Meeter
Keyword(s):  
Visual Code ◽  
Intertrial Priming

Intertrial priming: Decision, not selection

2006 ◽  
Author(s):  
Christian N. L. Olivers ◽  
Martijn Meeter
Keyword(s):  
Intertrial Priming

Predictions of the Spontaneous Symmetry-Breaking Theory for Visual Code Completeness and Spatial Scaling in Single-Cell Learning Rules

2001 ◽  
Vol 13 (5) ◽  
pp. 1023-1043
Author(s):  
Chris J. S. Webber
Keyword(s):  
Symmetry Breaking ◽  
Spontaneous Symmetry Breaking ◽  
Single Cell ◽  
Receptive Fields ◽  
Simple Cell ◽  
Visual Code ◽  
Spatial Scaling ◽  
Plausible Assumption ◽  
Learning Rules ◽  
Size Scales

This article shows analytically that single-cell learning rules that give rise to oriented and localized receptive fields, when their synaptic weights are randomly and independently initialized according to a plausible assumption of zero prior information, will generate visual codes that are invariant under two-dimensional translations, rotations, and scale magnifications, provided that the statistics of their training images are sufficiently invariant under these transformations. Such codes span different image locations, orientations, and size scales with equal economy. Thus, single-cell rules could account for the spatial scaling property of the cortical simple-cell code. This prediction is tested computationally by training with natural scenes; it is demonstrated that a single-cell learning rule can give rise to simple-cell receptive fields spanning the full range of orientations, image locations, and spatial frequencies (except at the extreme high and low frequencies at which the scale invariance of the statistics of digitally sampled images must ultimately break down, because of the image boundary and the finite pixel resolution). Thus, no constraint on completeness, or any other coupling between cells, is necessary to induce the visual code to span wide ranges of locations, orientations, and size scales. This prediction is made using the theory of spontaneous symmetry breaking, which we have previously shown can also explain the data-driven self-organization of a wide variety of transformation invariances in neurons' responses, such as the translation invariance of complex cell response.

scholarly journals Pole Image in the Light of Media Texts Created in the Internet Space by Residents of Neighbouring Countries

2020 ◽  
pp. 389-403
Author(s):  
Marta Hartenberger
Keyword(s):  
Media Culture ◽  
The Internet ◽  
Visual Code ◽  
Dynamic Changes ◽  
The World ◽  
Media Texts ◽  
National Stereotypes

The issue of national stereotypes requires, in the situation of dynamic changes in Europe and in the world, to update and consider new sources. A new area for tracking changes in the mutual perception of neighbouring nations are the texts of media culture, combining verbal and visual code. In the article, I elaborate on the legitimacy of using such intersemiotic messages, such as memes, demotivators, posters, advertisements, to study stereotypes. The Internet stereotype of a Pole functions on two levels, language and imagination, therefore it is a continuation of the national stereotype in a changed form.

scholarly journals Creating public space through urban analysis

2020 ◽  
Vol 164 ◽  
pp. 04012
Author(s):  
Liliia Talipova ◽  
Arseniy Lyubomirskiy ◽  
Daria Povarenko ◽  
Alexander Scherbakov
Keyword(s):  
Public Space ◽  
Social Environment ◽  
Swot Analysis ◽  
Public Spaces ◽  
Visual Environment ◽  
Visual Code ◽  
Adjacent Territory ◽  
Urban Analysis ◽  
The Right

The article researches purpose is to create a project of improvement of the right side of Kushelevskaya road through urban analysis. The transformation of the studied area will can lead to the improvement of the visual environment, creation of public spaces, landscaping of the adjacent territory, creation of visual code and new points of development and growth of the district. The study analyzes the physical and social environment, considers social scenarios. A SWOT analysis of the study area and a development map was carried out.

scholarly journals Target uncertainty does not lead to more distraction by singletons: Intertrial priming does

2005 ◽  
Vol 67 (8) ◽  
pp. 1354-1361 ◽  
Author(s):  
Yaïr Pinto ◽  
Christiann L. Olivers ◽  
Jan Theeuwes
Keyword(s):  
Target Uncertainty ◽  
Intertrial Priming

scholarly journals Independent Components of Color Natural Scenes Resemble V1 Neurons in Their Spatial and Color Tuning

2004 ◽  
Vol 91 (6) ◽  
pp. 2859-2873 ◽  
Author(s):  
Matthew S. Caywood ◽  
Benjamin Willmore ◽  
David J. Tolhurst
Keyword(s):  
Visual Cortex ◽  
Sensory Input ◽  
Independent Component ◽  
Natural Scenes ◽  
Sensory Coding ◽  
Color Coding ◽  
Visual Code ◽  
Independent Components ◽  
V1 Neurons ◽  
Redundancy Reduction

It has been hypothesized that mammalian sensory systems are efficient because they reduce the redundancy of natural sensory input. If correct, this theory could unify our understanding of sensory coding; here, we test its predictions for color coding in the primate primary visual cortex (V1). We apply independent component analysis (ICA) to simulated cone responses to natural scenes, obtaining a set of colored independent component (IC) filters that form a redundancy-reducing visual code. We compare IC filters with physiologically measured V1 neurons, and find great spatial similarity between IC filters and V1 simple cells. On cursory inspection, there is little chromatic similarity; however, we find that many apparent differences result from biases in the physiological measurements and ICA analysis. After correcting these biases, we find that the chromatic tuning of IC filters does indeed resemble the population of V1 neurons, supporting the redundancy-reduction hypothesis.

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