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Separating distractor rejection and target detection in posterior parietal cortex—an event-related fMRI study of visual marking
2003
NeuroImage
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Event-related analysis of functional magnetic resonance imaging data from a task involving visual search across time as well as space indicates that the superior parietal lobule is specifically involved ...
The study provides evidence for the functional segregration of brain regions within the posterior parietal lobe. ...
Acknowledgments This study was supported by grants from the Deutsche Forschungsgemeinschaft (DFG Working Memory Research Group Grant SCHR 375/8-1) and the Medical Research Council (UK, Grant G9623474). ...
doi:10.1016/s1053-8119(02)00036-8
pmid:12595185
fatcat:n3j533r4mrf63dun4z2pngyagi
A simultaneous ERP/fMRI investigation of the P300 aging effect
2012
Neurobiology of Aging
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Our results support the proposal that the age-related P300 anterior shift arises from an increased reliance on prefrontal structures to support target and distractor processing. ...
of inferior parietal cortex in the older group. ...
Grand-average event-related potentials from bilateral occipital electrodes (O1/O2) highlighting early visual responses to distractors and targets. ...
doi:10.1016/j.neurobiolaging.2011.12.021
pmid:22277263
fatcat:gfukjy2w6bduzofejhxafeu6xe
Page 1423 of Journal of Cognitive Neuroscience Vol. 22, Issue 7
[page]
2010
Journal of Cognitive Neuroscience
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Separating distractor rejection and target detection in posterior parietal cortex: An event-related fMRI study of visual marking. Newroimage, 18. 310-323
Ptak, R., & Valenza, N. (2005). ...
Eye movements and attention in visual feature search with graded target-distractor-similarity.
Hocking, R. T. (1996). ...
More targets in the display activate brain areas involved in working memory Target processing in overt serial visual search involves the dorsal attention network:A fixation-based event-related fMRI study
2021
Neuropsychologia
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In the present experiment, we used a multiple target search task that required eye movements and employed an analysis based on fixations as events of interest to investigate differences between target ...
Compared to distractor fixations, we found that target fixations gave rise to wide spread activation in the dorsal attention system, as well as in the visual cortex. ...
AI and JM analyzed the fMRI data. HH and JM also wrote parts of the methods and results sections. AI, CK and MH wrote the manuscript. ...
doi:10.1016/j.neuropsychologia.2021.107763
pmid:33493526
fatcat:zdharey7abf2xnwcmqjoxlheje
Prioritizing new over old: An fMRI study of the preview search task
2004
Human Brain Mapping
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In visual search, observers can successfully ignore temporally separated distractors that are presented as a preview before onset of the search display. ...
distractors that could not be separated in time. ...
A prime candidate is the posterior parietal cortex. The posterior parietal cortex has now been implicated in numerous attention paradigms involving various spatial and nonspatial tasks. ...
doi:10.1002/hbm.20071
pmid:15390216
fatcat:wbzuj63c55gqbluadiw5f7jkui
Differential Roles for Parietal and Occipital Cortices in Visual Working Memory
2012
PLoS ONE
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occipital cortex manifested significantly weaker responses to an array containing distractors than to an array containing only targets, despite that the number of objects presented was the same for the ...
These results suggest that parietal and occipital cortices engage differently in distractor processing and that the dorsal occipital, rather than parietal, activity appears to reflect output of stimulus ...
Acknowledgments We would like to thank Hiroyuki Tsubomi and anonymous reviewers for comments on earlier drafts of the manuscript.
Author Contributions ...
doi:10.1371/journal.pone.0038623
pmid:22679514
pmcid:PMC3367960
fatcat:otwa5uxsqffaraauwwqdekrxxe
Brain activity associated with selective attention, divided attention and distraction
2017
Brain Research
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However, like some previous studies, the present results also suggest segregation of prefrontal areas involved in the control of auditory and visual attention. ...
Distractors expectedly disrupted task performance. However, contrary to our expectations, activations specifically related to the distractors were found only in the auditory and visual cortices. ...
Acknowledgements This research was supported by the Finnish Cultural Foundation and the Academy of Finland (grant #260054). ...
doi:10.1016/j.brainres.2017.03.021
pmid:28363436
fatcat:z26koijtrfbrhm2e5o5o72duxa
Prepare for conflict: EEG correlates of the anticipation of target competition during overt and covert shifts of visual attention
2010
European Journal of Neuroscience
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of distractor competition is highly distinct, pointing to a degree of separability between the overt and covert systems. ...
As in previous work, a typical pattern of spatially selective occipital, parietal and frontal activity was seen in all task versions. ...
This work was supported by a SCORE grant from the National Institute of General Medicine Sciences to J. ...
doi:10.1111/j.1460-9568.2010.07219.x
pmid:20525082
fatcat:gytu5iopfbaohagdntmvojgbbq
Differing Time Courses of Reward-Related Attentional Processing: An EEG Source-Space Analysis
2021
Brain Topography
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This study is the first to investigate reward-related target and distractor processing in an additional singleton task using neurophysiological measures and source space analysis. ...
As hypothesized, source space analysis demonstrated that reward-related targets and reward-related distractors elicited activation in regions of the value-based attention network. ...
Generally, it is believed that visual attention is controlled by two partially separated systems: the top-down system centered around dorsal posterior parietal and frontal cortex, dealing with cognitive ...
doi:10.1007/s10548-021-00827-3
pmid:33733706
fatcat:hmnionbcqnf2lob4ma4veoeqn4
Perceptual Load-Dependent Neural Correlates of Distractor Interference Inhibition
2011
PLoS ONE
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Consistently, studies on the neural correlates of attention have found a smaller distractor-related activation in the sensory cortex at high relative to low perceptual load. ...
Methodology/Principal Findings: We studied 24 healthy participants using functional magnetic resonance imaging (fMRI) during a visual target identification task with two perceptual loads (low vs. high) ...
Moore for his statistical advice and Dr. Marvin M. Chun for his thoughtful comments.
Author Contributions ...
doi:10.1371/journal.pone.0014552
pmid:21267080
pmcid:PMC3022587
fatcat:sptqbtytwvgghgwby233xlwrjy
Human Posterior Parietal Cortex Plans Where to Reach and What to Avoid
2010
Journal of Neuroscience
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Rather, a majority of experiments highlights a role of human posterior parietal cortex in visual working memory and attention. ...
Compared with the memory/attention-only conditions, both latter situations led to a specific increase of preparatory fMRI activity in posterior parietal and dorsal premotor cortex. ...
Significant sustained fMRI activity related to prospective motor preparation and/or retrospective visual memory was consistently mapped in each subject's posterior parietal cortex (SPL, antIPS), PMd, SMA ...
doi:10.1523/jneurosci.2849-09.2010
pmid:20810892
pmcid:PMC2956133
fatcat:vhtjr4nm5rd3ja5c45zcamqfye
The BOLD response and the gamma oscillations respond differently than evoked potentials: an interleaved EEG-fMRI study
2003
BMC Neuroscience
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Target events had to be signaled by pressing a button and Novel events had to be ignored. Both Targets and Novels triggered a P300, of larger amplitude in the Novel condition. ...
In order to determine which kind of EEG activity was more closely related with fMRI, EEG and fMRI signals were acquired together, while subjects were presented with two kinds of rare events intermingled ...
We would also like to thank Mrs Corinne Marrer for her hard-working contribution in the acquisition of fMRI data, Mrs Monique Noël and the whole neurological ward for skillful electrode placement. ...
doi:10.1186/1471-2202-4-22
pmid:14499000
pmcid:PMC222904
fatcat:hho56dgl6fgoldn7ftt7bhhqfu
Normal Aging Delays and Compromises Early Multifocal Visual Attention during Object Tracking
2013
Journal of Cognitive Neuroscience
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We used a multiple object tracking task, in which younger and older adults were asked to keep track of moving target objects that moved randomly in the visual field among irrelevant distractor objects. ...
By recording the brain's electrophysiological responses during the tracking period, we were able to delineate neural processing for targets and distractors at early stages of visual processing (∼100-300 ...
Störmer has been supported by the International Max Planck Research School: The Life Course: Evolutionary and Ontogenetic Dynamics. Reprint requests should be sent to Viola S. ...
doi:10.1162/jocn_a_00303
pmid:23016765
fatcat:g2joifsqanaj3hpk2v7vcejhna
Long Time No See: Enduring Behavioral and Neuronal Changes in Perceptual Learning of Motion Trajectories 3 Years After Training
2017
Cerebral Cortex
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A similar pattern was observed on the neuronal level, when the representation of target and distractor stimuli was examined in early retinotopic visual cortex (V1-V3): training enhanced activity for the ...
Participants were trained for 3 weeks on a visual search task involving the detection of a dot moving in a "v"-shaped target trajectory among inverted "v"-shaped distractor trajectories. ...
The study was supported by the Alexander von Humboldt Foundation (to authors P.U.T. and S.M.F.) and by the Deutsche Forschungsgemeinschaft (GR988 22-1 to author M.W.G.). ...
doi:10.1093/cercor/bhx039
pmid:28334110
fatcat:bmn5ll4c2rckxodo4ipvomv3ui
Pretraining Cortical Thickness Predicts Subsequent Perceptual Learning Rate in a Visual Search Task
2015
Cerebral Cortex
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A similar association between cortical thickness and training success was also found in posterior parietal cortex (PPC). ...
Participants trained in a motion-discrimination task involving visual search for a "V"-shaped target motion trajectory among inverted "V"-shaped distractor trajectories. ...
Visual search. Preprocessed fMRI-data from the visual search conditions were analyzed using a general linear model (GLM) approach with an event-related design. ...
doi:10.1093/cercor/bhu309
pmid:25576537
fatcat:cojwxjt6kbh4xhqhmeniu6mmym
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