What happens in between? Human oscillatory brain activity related to crossmodal spatial cueing.

PloS One
Maja U TrennerManfred Fahle

Abstract

Previous studies investigated the effects of crossmodal spatial attention by comparing the responses to validly versus invalidly cued target stimuli. Dynamics of cortical rhythms in the time interval between cue and target might contribute to cue effects on performance. Here, we studied the influence of spatial attention on ongoing oscillatory brain activity in the interval between cue and target onset. In a first experiment, subjects underwent periods of tactile stimulation (cue) followed by visual stimulation (target) in a spatial cueing task as well as tactile stimulation as a control. In a second experiment, cue validity was modified to be 50%, 75%, or else 25%, to separate effects of exogenous shifts of attention caused by tactile stimuli from that of endogenous shifts. Tactile stimuli produced: 1) a stronger lateralization of the sensorimotor beta-rhythm rebound (15-22 Hz) after tactile stimuli serving as cues versus not serving as cues; 2) a suppression of the occipital alpha-rhythm (7-13 Hz) appearing only in the cueing task (this suppression was stronger contralateral to the endogenously attended side and was predictive of behavioral success); 3) an increase of prefrontal gamma-activity (25-35 Hz) specifically in the c...Continue Reading

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Citations

Oct 2, 2012·Experimental Neurology·Bjørg Elisabeth KilavikAlexa Riehle
Jul 8, 2008·Trends in Neurosciences·Daniel SenkowskiAndreas K Engel
Jul 12, 2012·The European Journal of Neuroscience·Aurélie Bidet-CauletFrédérique Bonnet-Brilhault
Apr 3, 2014·The European Journal of Neuroscience·Stefanie MühlbergSalvador Soto-Faraco
May 5, 2016·Psychophysiology·Katharina Limbach, Paul M Corballis
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May 19, 2018·Psychological Research·Stefanie Mühlberg, Salvador Soto-Faraco
May 3, 2019·Neuroscience Letters·Jonathan SilasAlexander Jones

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