Attentional modulation of the human somatosensory evoked potential in a trial-by-trial spatial cueing and sustained spatial attention task measured with high density 128 channels EEG

2004 ◽  
Vol 20 (3) ◽  
pp. 491-509 ◽  
Author(s):  
Regine Zopf ◽  
Claire Marie Giabbiconi ◽  
Thomas Gruber ◽  
Matthias M Müller
Keyword(s):  
Spatial Attention ◽  
Evoked Potential ◽  
High Density ◽  
Somatosensory Evoked Potential ◽  
Attentional Modulation ◽  
Attention Task ◽  
Spatial Cueing

scholarly journals Visual attention is available at a task-relevant location rapidly after a saccade

eLife ◽  
2016 ◽  
Vol 5 ◽  
Author(s):  
Tao Yao ◽  
Madhura Ketkar ◽  
Stefan Treue ◽  
B Suresh Krishna
Keyword(s):  
Eye Movements ◽  
Spatial Attention ◽  
Spatial Location ◽  
Temporal Analysis ◽  
Neuronal Population ◽  
Attentional Modulation ◽  
Attention Task ◽  
Fine Grained ◽  
The One ◽  
Precise Time

Maintaining attention at a task-relevant spatial location while making eye-movements necessitates a rapid, saccade-synchronized shift of attentional modulation from the neuronal population representing the task-relevant location before the saccade to the one representing it after the saccade. Currently, the precise time at which spatial attention becomes fully allocated to the task-relevant location after the saccade remains unclear. Using a fine-grained temporal analysis of human peri-saccadic detection performance in an attention task, we show that spatial attention is fully available at the task-relevant location within 30 milliseconds after the saccade. Subjects tracked the attentional target veridically throughout our task: i.e. they almost never responded to non-target stimuli. Spatial attention and saccadic processing therefore co-ordinate well to ensure that relevant locations are attentionally enhanced soon after the beginning of each eye fixation.

Somatosensory Evoked Potential Changes With a Selective Attention Task

1982 ◽  
Vol 19 (2) ◽  
pp. 146-159 ◽  
Author(s):  
Richard C. Josiassen ◽  
Charles Shagass ◽  
Richard A. Roemer ◽  
Dragoslav V. Ercegovac ◽  
John J. Straumanis
Keyword(s):  
Selective Attention ◽  
Evoked Potential ◽  
Somatosensory Evoked Potential ◽  
Attention Task

scholarly journals Cholinergic manipulations affect sensory responses but not attentional enhancement in macaque MT

BMC Biology ◽  
2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Vera Katharina Veith ◽  
Cliodhna Quigley ◽  
Stefan Treue
Keyword(s):  
Visual Cortex ◽  
Spatial Attention ◽  
Rhesus Monkeys ◽  
Cell Activity ◽  
Extrastriate Cortex ◽  
Attentional Modulation ◽  
Cellular Mechanisms ◽  
Attention Task ◽  
Sensory Responses ◽  
Cholinergic Effect

Abstract Background Attentional modulation in the visual cortex of primates is characterized by multiplicative changes of sensory responses with changes in the attentional state of the animal. The cholinergic system has been linked to such gain changes in V1. Here, we aim to determine if a similar link exists in macaque area MT. While rhesus monkeys performed a top-down spatial attention task, we locally injected a cholinergic agonist or antagonist and recorded single-cell activity. Results Although we confirmed cholinergic influences on sensory responses, there was no additional cholinergic effect on the attentional gain changes. Neither a muscarinic blockage nor a local increase in acetylcholine led to a significant change in the magnitude of spatial attention effects on firing rates. Conclusions This suggests that the cellular mechanisms of attentional modulation in the extrastriate cortex cannot be directly inferred from those in the primary visual cortex.

Selective spatial attention to left or right hand flutter sensation modulates the steady-state somatosensory evoked potential

2004 ◽  
Vol 20 (1) ◽  
pp. 58-66 ◽  
Author(s):  
Claire Marie Giabbiconi ◽  
Chris Dancer ◽  
Regine Zopf ◽  
Thomas Gruber ◽  
Matthias M Müller
Keyword(s):  
Steady State ◽  
Spatial Attention ◽  
Evoked Potential ◽  
Somatosensory Evoked Potential ◽  
Right Hand

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.

Sign in / Sign up

Export Citation Format

Share Document