The effect of category learning on visual attention and visual representation

2017 ◽  
Vol 54 (12) ◽  
pp. 1855-1871 ◽  
Author(s):  
Jonathan R. Folstein ◽  
Shamsi S. Monfared ◽  
Trevor Maravel
Keyword(s):  
Visual Attention ◽  
Category Learning ◽  
Visual Representation

Visual Spatial Attention in Migraine Sufferers in Postictal and Interictal Phases: An Event-Related Potential Study

2001 ◽  
Vol 15 (1) ◽  
pp. 22-34 ◽  
Author(s):  
D.H. de Koning ◽  
J.C. Woestenburg ◽  
M. Elton
Keyword(s):  
Cerebral Cortex ◽  
Visual Attention ◽  
Migraine Attack ◽  
Spatial Attention ◽  
Event Related Potential ◽  
Significant Enhancement ◽  
Pathophysiological Mechanism ◽  
Attention Task ◽  
Visual Spatial Attention ◽  
Visual Spatial

Migraineurs with and without aura (MWAs and MWOAs) as well as controls were measured twice with an interval of 7 days. The first session of recordings and tests for migraineurs was held about 7 hours after a migraine attack. We hypothesized that electrophysiological changes in the posterior cerebral cortex related to visual spatial attention are influenced by the level of arousal in migraineurs with aura, and that this varies over the course of time. ERPs related to the active visual attention task manifested significant differences between controls and both types of migraine sufferers for the N200, suggesting a common pathophysiological mechanism for migraineurs. Furthermore, migraineurs without aura (MWOAs) showed a significant enhancement for the N200 at the second session, indicating the relevance of time of measurement within migraine studies. Finally, migraineurs with aura (MWAs) showed significantly enhanced P240 and P300 components at central and parietal cortical sites compared to MWOAs and controls, which seemed to be maintained over both sessions and could be indicative of increased noradrenergic activity in MWAs.

Visual Attention: Fitting It All Together

1997 ◽  
Vol 42 (6) ◽  
pp. 501-503
Author(s):  
Kyle R. Cave
Keyword(s):  
Visual Attention

A Striatal-Based Model of Implicit Category Learning

2000 ◽  
Author(s):  
F. Gregory Ashby ◽  
Shawn W. Ell ◽  
Elliott M. Waldron
Keyword(s):  
Category Learning
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