scholarly journals Congruency between perceptual and conceptual object size modulates visually-guided action

2017 ◽  
Vol 17 (10) ◽  
pp. 18
Author(s):  
Christine Gamble ◽  
Joo-Hyun Song
Keyword(s):  
Object Size ◽  
Visually Guided ◽  
Visually Guided Action

No evidence for visuomotor priming in a visually guided action task

2005 ◽  
Vol 43 (2) ◽  
pp. 216-226 ◽  
Author(s):  
Jonathan S. Cant ◽  
David A. Westwood ◽  
Kenneth F. Valyear ◽  
Melvyn A. Goodale
Keyword(s):  
Visually Guided ◽  
Visually Guided Action

Egocentric Action in Early Infancy: Spatial Frames of Reference for Saccades

1997 ◽  
Vol 8 (3) ◽  
pp. 224-230 ◽  
Author(s):  
Rick O. Gilmore ◽  
Mark H. Johnson
Keyword(s):  
Spatial Information ◽  
Visual Space ◽  
Frames Of Reference ◽  
Saccade Target ◽  
Visually Guided ◽  
Retinal Position ◽  
Position Information ◽  
Visual Spatial ◽  
Visually Guided Action ◽  
Spatial Frames Of Reference

The extent to which infants combine visual (i e, retinal position) and nonvisual (eye or head position) spatial information in planning saccades relates to the issue of what spatial frame or frames of reference influence early visually guided action We explored this question by testing infants from 4 to 6 months of age on the double-step saccade paradigm, which has shown that adults combine visual and eye position information into an egocentric (head- or trunk-centered) representation of saccade target locations In contrast, our results imply that infants depend on a simple retinocentric representation at age 4 months, but by 6 months use egocentric representations more often to control saccade planning Shifts in the representation of visual space for this simple sensorimotor behavior may index maturation in cortical circuitry devoted to visual spatial processing in general

Visually guided action and the “need to know”

1994 ◽  
Vol 17 (2) ◽  
pp. 213-214 ◽  
Author(s):  
A. David Milner ◽  
David P. Carey ◽  
Monika Harvey
Keyword(s):  
Visually Guided ◽  
Visually Guided Action

The Effect of Pictorial Illusion on Prehension and Perception

1998 ◽  
Vol 10 (1) ◽  
pp. 122-136 ◽  
Author(s):  
Angela M. Haffenden ◽  
Melvyn A. Goodale
Keyword(s):  
Visual Perception ◽  
Three Dimensional ◽  
Object Size ◽  
Strongly Correlated ◽  
Visually Guided ◽  
Grip Aperture ◽  
Physical Size ◽  
Disk Size ◽  
Dimensional Version ◽  
Size Contrast

The present study examined the effect of a size-contrast illusion (Ebbinghaus or Titchener Circles Illusion) on visual perception and the visual control of grasping movements. Seventeen right-handed participants picked up and, on other trials, estimated the size of fipoker-chipfl disks, which functioned as the target circles in a three-dimensional version of the illusion. In the estimation condition, subjects indicated how big they thought the target was by separating their thumb and forefinger to match the target's size. After initial viewing, no visual feedback from the hand or the target was available. Scaling of grip aperture was found to be strongly correlated with the physical size of the disks, while manual estimations of disk size were biased in the direction of the illusion. Evidently, grip aperture is calibrated to the true size of an object, even when perception of object size is distorted by a pictorial illusion, a result that is consistent with recent suggestions that visually guided prehension and visual perception are mediated by separate visual pathways.

Visual Recognition and Visually Guided Action After Early Bilateral Lesion of Occipital Cortex: A Behavioral Study of a 4.6-year-old Girl

Neurocase ◽  
2006 ◽  
Vol 12 (5) ◽  
pp. 263-279 ◽  
Author(s):  
Ileana Amicuzi ◽  
Massimo Stortini ◽  
Maurizio Petrarca ◽  
Paola Di Giulio ◽  
Giuseppe Di Rosa ◽  
...  
Keyword(s):  
Visual Recognition ◽  
Occipital Cortex ◽  
Bilateral Lesion ◽  
Behavioral Study ◽  
Visually Guided ◽  
Visually Guided Action
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