Frontoparietal activity and its structural connectivity in binocular rivalry

Wilcke, Juliane C.; O’Shea, Robert P; Watts, Richard

doi:10.1016/j.brainres.2009.09.080

Cited by 42 publications

(52 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2009; Wilcke et al. 2009). Therefore, one possible interpretation of the major SMG recruitment observed in our findings would be that thought suppression involves the suspension of thinking.…”

Section: Discussionmentioning

confidence: 99%

Dynamic interactions of the cortical networks during thought suppression

et al. 2016

View full text Add to dashboard Cite

ObjectivesThought suppression has spurred extensive research in clinical and preclinical fields, particularly with regard to the paradoxical aspects of this behavior. However, the involvement of the brain's inhibitory system in the dynamics underlying the continuous effort to suppress thoughts has yet to be clarified. This study aims to provide a unified perspective for the volitional suppression of internal events incorporating the current understanding of the brain's inhibitory system.Materials and MethodsTwenty healthy volunteers underwent functional magnetic resonance imaging while they performed thought suppression blocks alternating with visual imagery blocks. The whole dataset was decomposed by group‐independent component analysis into 30 components. After discarding noise components, the 20 valid components were subjected to further analysis of their temporal properties including task‐relatedness and between‐component residual correlation.ResultsCombining a long task period and a data‐driven approach, we observed a right‐side‐dominant, lateral frontoparietal network to be strongly suppression related. This network exhibited increased fluctuation during suppression, which is compatible with the well‐known difficulty of suppression maintenance.ConclusionsBetween‐network correlation provided further insight into the coordinated engagement of the executive control and dorsal attention networks, as well as the reciprocal activation of imagery‐related components, thus revealing neural substrates associated with the rivalry between intrusive thoughts and the suppression process.

show abstract

Section: Discussionmentioning

confidence: 99%

Dynamic interactions of the cortical networks during thought suppression

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The temporal order of activity suggests that those higher level areas become active before primary sensory areas which could be interpreted as top-down influence. The right inferior parietal lobe has been consistently identified in fMRI studies using bi-stable ambiguous stimuli [Inui et al, 2000;Kleinschmidt et al, 1998;Slotnick and Yantis, 2005] and binocular rivalry [Lumer et al, 1998;Lumer and Rees, 1999;Wilcke et al, 2009], but its function had been interpreted as an appraisal of the altered percept rather than its cause. This area has been found to be involved in change detection and change blindness [Beck et al, 2001[Beck et al, , 2006Kim and Blake, 2005;Pessoa and Ungerleider, 2004].…”

Section: Discussionmentioning

confidence: 99%

Right parietal brain activity precedes perceptual alternation during binocular rivalry

Britz

Pitts

Michel

2011

Human Brain Mapping

View full text Add to dashboard Cite

We investigated perceptual reversals for intermittently presented stimuli during binocular rivalry and physical alternation while the ongoing EEG was recorded from 64 channels. EEG topographies immediately preceding stimulus-onset were analyzed and two topographies doubly dissociated perceptual reversals from non-reversals. The estimated intracranial generators associated with these topographies were stronger in right inferior parietal cortex and weaker bilaterally in the ventral stream before perceptual reversals. No such differences were found for physical alternation of the same stimuli. These results replicate and extend findings from a previous study with the Necker cube and suggest common neural mechanisms associated with perceptual reversals during binocular rivalry and ambiguous figure perception. For both types of multi-stable stimuli, the dorsal stream is more active preceding perceptual reversals. Activity in the ventral stream, however, differed for binocular rivalry compared to ambiguous figures. The results from the two studies suggest a causal role for the right inferior parietal cortex in generating perceptual reversals regardless of the type of multi-stable stimulus, while activity in the ventral stream appears to depend on the particular type of stimulus.

show abstract

“…Although fMRI-and MEG-compatible LCS goggles and ATS monitors have not yet been developed, HMD systems specialized for fMRI environments are commercially available (e.g., Avotec Inc. 'SV-7021' for >US$40,000 -used in Wilcke et al, 2009;Resonance Technology Inc. 'VisuaStim Digital' or 'CinemaVision'; NordicNeuroLab 'VisualSystem').…”

Section: Neuroimagingmentioning

confidence: 99%

Dichoptic Viewing Methods for Binocular Rivalry Research: Prospects for Large-Scale Clinical and Genetic Studies

et al. 2013

View full text Add to dashboard Cite

Binocular rivalry (BR) is an intriguing phenomenon that occurs when two different images are presented, one to each eye, resulting in alternation or rivalry between the percepts. The phenomenon has been studied for nearly 200 years, with renewed and intensive investigation over recent decades. The rate of perceptual switching has long been known to vary widely between individuals but to be relatively stable within individuals. A recent twin study demonstrated that individual variation in BR rate is under substantial genetic control, a finding that also represented the first report, using a large study, of genetic contribution for any post-retinal visual processing phenomenon. The twin study had been prompted by earlier work showing BR rate was slow in the heritable psychiatric condition, bipolar disorder (BD). Together, these studies suggested that slow BR may represent an endophenotype for BD, and heralded the advent of modern clinical and genetic studies of rivalry. This new focus has coincided with rapid advances in 3D display technology, but despite such progress, specific development of technology for rivalry research has been lacking. This review therefore compares different display methods for BR research across several factors, including viewing parameters, image quality, equipment cost, compatibility with other investigative methods, subject group, and sample size, with a focus on requirements specific to large-scale clinical and genetic studies. It is intended to be a resource for investigators new to BR research, such as clinicians and geneticists, and to stimulate the development of 3D display technology for advancing interdisciplinary studies of rivalry.

show abstract

Frontoparietal activity and its structural connectivity in binocular rivalry

Cited by 42 publications

References 44 publications

Dynamic interactions of the cortical networks during thought suppression

Dynamic interactions of the cortical networks during thought suppression

Right parietal brain activity precedes perceptual alternation during binocular rivalry

Dichoptic Viewing Methods for Binocular Rivalry Research: Prospects for Large-Scale Clinical and Genetic Studies

Contact Info

Product

Resources

About