Attentional shifts towards an expected visual target alter the level of alpha-band oscillatory activity in the human calcarine cortex

Yamagishi, Noriko; Goda, Naokazu; Callan, Daniel E.; Anderson, Stephen J.; Kawato, Mitsuo

doi:10.1016/j.cogbrainres.2005.09.006

Cited by 114 publications

(104 citation statements)

References 59 publications

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“…One advantage might be to reduce the flow of visual information, which could interfere with processing in higher level areas such as working memory maintenance This hypothesis is among others based on findings demonstrating that alpha power increases during working memory retention (Jensen et al, 2002;Tuladhar et al, 2007). Consistent with this notion it was demonstrated in visual cued attention experiments that alpha power increased in occipital areas ipsilateral to the hemifield attended to, compared with when this hemifield was ignored (Worden et al, 2000;Fu et al, 2001;Yamagishi et al, 2005;Kelly et al, 2006;Thut et al, 2006).…”

Section: Discussionsupporting

confidence: 66%

Prestimulus Oscillatory Activity in the Alpha Band Predicts Visual Discrimination Ability

Dijk¹,

Schoffelen²,

Oostenveld³

et al. 2008

J. Neurosci.

786

577

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Although the resting and baseline states of the human electroencephalogram and magnetoencephalogram (MEG) are dominated by oscillations in the alpha band (ϳ10 Hz), the functional role of these oscillations remains unclear. In this study we used MEG to investigate how spontaneous oscillations in humans presented before visual stimuli modulate visual perception. Subjects had to report if there was a subtle difference in gray levels between two superimposed presented discs. We then compared the prestimulus brain activity for correctly (hits) versus incorrectly (misses) identified stimuli. We found that visual discrimination ability decreased with an increase in prestimulus alpha power. Given that reaction times did not vary systematically with prestimulus alpha power changes in vigilance are not likely to explain the change in discrimination ability. Source reconstruction using spatial filters allowed us to identify the brain areas accounting for this effect. The dominant sources modulating visual perception were localized around the parieto-occipital sulcus. We suggest that the parieto-occipital alpha power reflects functional inhibition imposed by higher level areas, which serves to modulate the gain of the visual stream.

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Section: Discussionsupporting

confidence: 66%

Prestimulus Oscillatory Activity in the Alpha Band Predicts Visual Discrimination Ability

Dijk¹,

Schoffelen²,

Oostenveld³

et al. 2008

J. Neurosci.

786

577

View full text Add to dashboard Cite

show abstract

“…2A). We note in relation to this response that event-related decreases in synchronized power do not necessarily reflect a decrease in neural activity: they may in fact reflect increases in more random, independent firing of neurons that serve to maximize the processing capacity of the brain areas involved (Kinsey et al, 2009;Yamagishi et al, 2005). There was a final increase in oscillatory power in occipital cortex from around 600 to 850 ms at 10-25 Hz.…”

Section: Discussionmentioning

confidence: 84%

Interactions between visual and semantic processing during object recognition revealed by modulatory effects of age of acquisition

et al. 2014

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Northumbria University has developed Northumbria Research Link (NRL) to enable users to access the University's research output. Copyright © and moral rights for items on NRL are retained by the individual author(s) and/or other copyright owners. Single copies of full items can be reproduced, displayed or performed, and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided the authors, title and full bibliographic details are given, as well as a hyperlink and/or URL to the original metadata page. The content must not be changed in any way. Full items must not be sold commercially in any format or medium without formal permission of the copyright holder. The full policy is available online: http://nrl.northumbria.ac.uk/policies.html This document may differ from the final, published version of the research and has been made available online in accordance with publisher policies. To read and/or cite from the published version of the research, please visit the publisher's website (a subscription may be required.)Interactions between visual and semantic processing during object recognition revealed by modulatory effects of age of acquisition The age of acquisition (AoA) of objects and their names is a powerful determinant of processing speed in adulthood, with early-acquired objects being recognized and named faster than late-acquired objects. Previous research using fMRI . Traces of vocabulary acquisition in the brain: evidence from covert object naming. NeuroImage 33,[958][959][960][961][962][963][964][965][966][967][968] found that AoA modulated the strength of BOLD responses in both occipital and left anterior temporal cortex during object naming. We used magnetoencephalography (MEG) to explore in more detail the nature of the influence of AoA on activity in those two regions. Covert object naming recruited a network within the left hemisphere that is familiar from previous research, including visual, left occipito-temporal, anterior temporal and inferior frontal regions. Region of interest (ROI) analyses found that occipital cortex generated a rapid evoked response (~ 75-200 ms at 0-40 Hz) that peaked at 95 ms but was not modulated by AoA. That response was followed by a complex of later occipital responses that extended from ~ 300 to 850 ms and were stronger to early-than late-acquired items from ~ 325 to 675 ms at 10-20 Hz in the induced rather than the evoked component. Left anterior temporal cortex showed an evoked response that occurred significantly later than the first occipital response (~ 100-400 ms at 0-10 Hz with a peak at 191 ms) and was stronger to early-than late-acquired items from ~ 100 to 300 ms at 2-12 Hz. A later anterior temporal response from ~ 550 to 1050 ms at 5-20 Hz was not modulated by AoA. The results indicate that the initial analysis of object forms in visual cortex is not influenced by AoA. A fastforward sweep of activation from occipital and left anterior temporal cortex t...

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“…For example, the suppression of scalp-recorded alpha has been associated with general alerting when people are given a cue as to when a target will occur (Babiloni et al, 2004) and with changed activity within the visual cortex when attending to a target (Yamagishi et al, 2005). During attention to a visual target, increases in alpha activity at unattended locations have been related to the success of distracter suppression (Worden et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

The Relation of Brain Oscillations to Attentional Networks

Fan

Byrne²,

Worden³

et al. 2007

Journal of Neuroscience

254

253

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Previous studies have suggested the relation of particular frequency bands such as theta (4 -8 Hz), alpha (8 -14 Hz), beta (14 -30 Hz), or gamma (Ͼ30 Hz) to cognitive functions. However, there has been controversy over which bands are specifically related to attention. We used the attention network test to separate three anatomically defined brain networks that carry out the functions of alerting, orienting, and executive control of attention. High-density scalp electrical recording was performed to record synchronous oscillatory activity and power spectrum analyses based on functional magnetic resonance imaging constrained dipole modeling were conducted for each attentional network. We found that each attentional network has a distinct set of oscillations related to its activity. The alerting network showed a specific decrease in theta-, alpha-, and beta-band activity 200 -450 ms after a warning signal. The orienting network showed an increase in gamma-band activity at ϳ200 ms after a spatial cue, indicating the location of a target. The executive control network revealed a complex pattern when a target was surrounded with incongruent flankers compared with congruent flankers. There was an early (Ͻ400 ms) increase in gamma-band activity, a later (Ͼ400 ms) decrease in beta-and low gamma-band activity after the target onset, and a decrease of all frequency bands before response followed by an increase after the response. These data demonstrate that attention is not related to any single frequency band but that each network has a distinct oscillatory activity and time course.

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Attentional shifts towards an expected visual target alter the level of alpha-band oscillatory activity in the human calcarine cortex

Cited by 114 publications

References 59 publications

Prestimulus Oscillatory Activity in the Alpha Band Predicts Visual Discrimination Ability

Prestimulus Oscillatory Activity in the Alpha Band Predicts Visual Discrimination Ability

Interactions between visual and semantic processing during object recognition revealed by modulatory effects of age of acquisition

The Relation of Brain Oscillations to Attentional Networks

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