Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Effective connectivity in target stimulus processing: a dynamic causal modeling study of visual oddball task.

Milan Brázdil1, Michal Mikl, Radek Marecek

  • 11st Department of Neurology, St. Anne's University Hospital, Brno, Czech Republic. mbrazd@med.muni.cz

Neuroimage
|January 30, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Relative entropy as a biomarker for vagus nerve stimulation response in epilepsy: Insights from intracerebral electroencephalography.

Epilepsia open·2026
Same author

Ultrafast oscillations in the human brain and their functional significance.

Epilepsia·2026
Same author

Real-world effectiveness of cenobamate in drug-resistant and ultra-refractory epilepsy: A multicenter study.

Epilepsia open·2026
Same author

Final Subcortical Motor Mapping Threshold and Overall Survival After Motor-Eloquent Glioblastoma Resection: Exploratory Analysis of Residual Fluorescence at the Motor Boundary.

Cancers·2026
Same author

Resting-State Functional Connectivity of the Amygdala and Hippocampus in PTSD: Results From the PGC-ENIGMA PTSD Working Group.

The American journal of psychiatry·2026
Same author

Dynamic functional connectivity is related to cognitive performance of prodromal Lewy body dementia.

Journal of neural transmission (Vienna, Austria : 1996)·2026

This study reveals bidirectional frontoparietal communication during target processing, suggesting two overlapping attentional systems. The anterior cingulate cortex influences the prefrontal cortex in this network.

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Neuroimaging

Background:

  • Understanding the neural basis of goal-directed attention is crucial for cognitive neuroscience.
  • Previous research suggests frontoparietal networks are involved in processing salient events.

Purpose of the Study:

  • To elucidate the intrinsic connectivity architecture of neural structures involved in goal-directed processing of target events.
  • To investigate the flow of information within the frontoparietal network during attentional tasks.

Main Methods:

  • Event-related functional magnetic resonance imaging (fMRI) was used in 20 healthy volunteers performing an oddball task.
  • Dynamic causal modeling (DCM) with Bayes factors compared neurophysiological models of connectivity.
  • Focus was on the intraparietal sulcus (IPS), anterior cingulate cortex (ACC), and prefrontal cortex (PFC).

Related Experiment Videos

Main Results:

  • Significant activations to target stimuli were observed in the IPS, ACC, and PFC, among other regions.
  • DCM analysis indicated that the ACC and IPS are superior input regions compared to the PFC.
  • Significant parallel forward connections were found from the IPS to frontal areas and from the ACC to the PFC and IPS.

Conclusions:

  • Findings suggest a bidirectional frontoparietal information flow during target processing.
  • This likely reflects parallel activation of distinct, overlapping attentional or event-encoding neural systems.
  • A hierarchy is suggested where the ACC influences the PFC within the right frontal lobe.