scholarly journals Deconstructing multimodality: visual properties and visual context in human semantic processing

2019 ◽  
Author(s):  
Christopher Davis ◽  
Luana Bulat ◽  
Anita Lilla Vero ◽  
Ekaterina Shutova
Keyword(s):  
Semantic Processing ◽  
Visual Context ◽  
Visual Properties

scholarly journals Saccade Adaptation Specific to Visual Context

2009 ◽  
Vol 101 (4) ◽  
pp. 1713-1721 ◽  
Author(s):  
James P. Herman ◽  
Mark R. Harwood ◽  
Josh Wallman
Keyword(s):  
Target Stimulus ◽  
Separate Experiment ◽  
Physical Parameters ◽  
Visual Context ◽  
Saccade Amplitude ◽  
Repair Mechanism ◽  
Adaptive Process ◽  
Differential Adaptation ◽  
Saccade Adaptation ◽  
Visual Properties

When saccades consistently overshoot their targets, saccade amplitudes gradually decrease, thereby maintaining accuracy. This adaptive process has been seen as a form of motor learning that copes with changes in physical parameters of the eye and its muscles, brought about by aging or pathology. One would not expect such a motor-repair mechanism to be specific to the visual properties of the target stimulus. We had subjects make saccades to sudden movements of either of two targets—a steadily illuminated circle or a flickering circle—one of which stepped back during each saccade it elicited, simulating the effect of a hypermetric saccade. Saccade gain (saccade amplitude/target amplitude) decreased by 15% for the target that stepped back versus 6% for the target that did not step back. Most of the change in gain between successive blocks of trials of each type occurred on the first saccade of the block, decreasing by 0.12 on the first trial of a step-back block and increasing by 0.1 on the first trial of a no-step-back block. The differential adaptation of the two targets required postsaccadic feedback of both target types, as shown in a separate experiment, in which saccades to only one target received feedback, and the gain did not differ between the two target types. This demonstration that a context defined by a visual stimulus can serve as an effective cue for switching saccade gain between states suggests that saccade adaptation may have a heretofore unsuspected dimension of adaptability.

Spatial and temporal dynamics of lexico-semantic processing in American Sign Language

2011 ◽  
Author(s):  
M. Leonard ◽  
N. Ferjan Ramirez ◽  
C. Torres ◽  
M. Hatrak ◽  
R. Mayberry ◽  
...  
Keyword(s):  
American Sign Language ◽  
Sign Language ◽  
Semantic Processing ◽  
Temporal Dynamics ◽  
American Sign ◽  
Spatial And Temporal Dynamics

Visual context differentially mediates left- and right-hand reaching movements

2009 ◽  
Author(s):  
Jos J. Adam ◽  
Susan Hoonhorst ◽  
Rick Muskens ◽  
Jay Pratt ◽  
Martin H. Fischer
Keyword(s):  
Reaching Movements ◽  
Visual Context ◽  
Right Hand ◽  
Left And Right

Mechanism(s) for Apprehending Numerosity Based On Several Visual Properties

2011 ◽  
Author(s):  
Charles Chubb ◽  
Charles E. Wright ◽  
Elhum Shamshiri ◽  
Megan Wang
Keyword(s):  
Visual Properties

Associative Judgments Block Semantic Processing

2007 ◽  
Author(s):  
Erin Buchanan ◽  
William S. Maki ◽  
Melissa Patton
Keyword(s):  
Semantic Processing
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