Short‐term numerosity training promotes symbolic arithmetic in children with developmental dyscalculia: The mediating role of visual form perception

2019 ◽  
Vol 23 (4) ◽  
Author(s):  
Dazhi Cheng ◽  
Qing Xiao ◽  
Jiaxin Cui ◽  
Chuansheng Chen ◽  
Jieying Zeng ◽  
...  
Keyword(s):  
Form Perception ◽  
Short Term ◽  
Visual Form ◽  
Developmental Dyscalculia ◽  
Mediating Role ◽  
Visual Form Perception

scholarly journals Play enhances visual form perception in infancy–an active training study

2020 ◽  
Vol 23 (3) ◽  
Author(s):  
Elin Schröder ◽  
Gustaf Gredebäck ◽  
Jessica Gunnarsson ◽  
Marcus Lindskog
Keyword(s):  
Form Perception ◽  
Training Study ◽  
Visual Form ◽  
Visual Form Perception ◽  
Active Training

Perturbing Line Pictures for Identification of Visual Features and Their Syntax

Perception ◽  
1984 ◽  
Vol 13 (6) ◽  
pp. 675-686 ◽  
Author(s):  
Eg G J Eijkman
Keyword(s):  
Perturbation Method ◽  
Contextual Factors ◽  
Form Perception ◽  
Visual Features ◽  
Multivariate Methods ◽  
Point Scale ◽  
Visual Form ◽  
Feature Detectors ◽  
Visual Form Perception

Experiments are reported in which line pictures were perturbed by omission or displacement of a combination of single pixels, fragments of lines, contours, and whole figures. Different effects of perturbation were expected by selectively violating visual syntactic rules or by impeding the contribution of certain feature detectors. The deterioration of the perturbed picture was measured according to standard psychophysical methods by rating on a 5-point scale. Multivariate methods were used to single out the relative effects of perturbation by, respectively, a set of single pixels, line fragments, contours and whole figures. Lines, as opposed to loose pixels, are clearly powerful descriptors of the pictures; contours or whole figures do not add significantly to what lines already describe. Different effects were observed if perturbations were dislocations rather than removals. Then contours and whole figures showed a typical disrupting effect compared to line fragments. These results have consequences for the development of a syntax of visual form perception. The perturbation method seems appropriate for identifying features or syntactic rules, although the results are dependent on a number of environmental and contextual factors.

Proportion judgments in haptic and visual form perception.

1980 ◽  
Vol 34 (2) ◽  
pp. 161-174 ◽  
Author(s):  
Stuart Appelle ◽  
J. Gravetter ◽  
Philip W. Davidson
Keyword(s):  
Form Perception ◽  
Visual Form ◽  
Visual Form Perception

The Role of Wholistic/Configural Properties versus Global Properties in Visual Form Perception

Perception ◽  
1994 ◽  
Vol 23 (5) ◽  
pp. 489-504 ◽  
Author(s):  
Ruth Kimchi
Keyword(s):  
Classification Performance ◽  
Line Orientation ◽  
Form Perception ◽  
Global Properties ◽  
The Hierarchical Structure ◽  
On Line ◽  
Visual Form Perception ◽  
Global And Local

A distinction has previously been proposed between global properties, defined by their position in the hierarchical structure of the stimulus, and wholistic/configural properties defined as a function of interrelations among component parts. The processing consequences of this distinction were examined in five experiments. In experiments 1–4 configural properties (closure and intersection) were pitted against component properties (line orientation and direction of curvature) and the results showed that discrimination and classification performance was dominated by the configural properties. In experiment 5 the relative perceptual dominance of type of property (configural/nonconfigural) and level of pattern structure (global/local) was examined. The results showed that classifications based on the configural property of closure were not affected at all by the level of globality at which this property varied. Global advantage was observed only with classifications based on line orientation. Taken together, the present results suggest that configural properties dominate discrimination and classification of visual forms, whereas the perceptual advantage of the global level of structure depends critically on the type of properties present at the global and local levels. These findings are also discussed in relation to findings on texture perception, and it is suggested that the perceptual system may be characterized by a predisposition for configural properties.

THE LOCALIZING SIGNIFICANCE OF LIMITED SIMULTANEOUS VISUAL FORM PERCEPTION

Brain ◽  
1963 ◽  
Vol 86 (4) ◽  
pp. 697-701 ◽  
Author(s):  
M. KINSBOURNE ◽  
ELIZABETH K. WARRINGTON
Keyword(s):  
Form Perception ◽  
Visual Form ◽  
Visual Form Perception

scholarly journals Visual form perception: A comparison of individuals at high risk for psychosis, recent onset schizophrenia and chronic schizophrenia

2007 ◽  
Vol 97 (1-3) ◽  
pp. 25-34 ◽  
Author(s):  
D. Kimhy ◽  
C. Corcoran ◽  
J.M. Harkavy-Friedman ◽  
B. Ritzler ◽  
D.C. Javitt ◽  
...  
Keyword(s):  
High Risk ◽  
Chronic Schizophrenia ◽  
Form Perception ◽  
Visual Form ◽  
Recent Onset ◽  
Visual Form Perception
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