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3 results for “bistable perception”
Data from: Fractionation of parietal function in bistable perception probed with concurrent TMS-EEG
When visual input has conflicting interpretations, conscious perception can alternate spontaneously between these possible interpretations. This is called bistable perception. Previous neuroimaging studies have indicated the involvement of two right parietal areas in resolving perceptual ambiguity (ant-SPLr and post-SPLr). Transcranial magnetic stimulation (TMS) studies that selectively interfered with the normal function of these regions suggest that they play opposing roles in this type of perceptual switch. In the present study, we investigated this fractionation of parietal function by use of combined TMS with electroencephalography (EEG). Specifically, while participants viewed either a bistable stimulus, a replay stimulus, or resting-state fixation, we applied single pulse TMS to either location independently while simultaneously recording EEG. Combined with participant's individual structural magnetic resonance imaging (MRI) scans, this dataset allows for complex analyses of the effect of TMS on neural time series data, which may further elucidate the causal role of the parietal cortex in ambiguous perception.
Data from: Fractionation of parietal function in bistable perception probed with concurrent TMS-EEG
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Data for "Assessing cognitive styles through EEG-based bistable perception processing"
<p>This is the raw data collected for an ERP study on field<br> dependence-independence. Field dependence-independence (FD-I) is a widely<br> studied dimension of cognitive styles designed to measure an individual’s<br> ability to identify embedded parts of an organized visual field as entities<br> separated from that given field. The aim of the research is to determine<br> whether the brain activity features that have been found to be perceptual<br> switching indicators could serve as robust features, differentiating<br> field-dependent from field-independent participants. Previous research suggests<br> that various event related potential (ERP)-related and frequency features are<br> associated with the perceptual reversal occurring during the observation of<br> a bistable image. In this study we combined these features in the context of<br> a different experimental scheme using ambiguous and unambiguous stimuli during<br> participants’ perceptual observations.</p> <p> </p>
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