Moving Beyond Attentional Biases: Shifting the Interhemispheric Balance between Left and Right Posterior Parietal Cortex Modulates Attentional Control Processes
| Autor: | Teresa Schuhmann, Felix Duecker, Alexander T. Sack, Christianne Jacobs, Nina Bien |
|---|---|
| Přispěvatelé: | RS: FPN CN 4, Cognition, RS: FPN CN 9, Teaching |
| Rok vydání: | 2017 |
| Předmět: |
Adult
Male Left and right Eye Movements Cognitive Neuroscience medicine.medical_treatment Posterior parietal cortex Context (language use) Neuropsychological Tests Transcranial Direct Current Stimulation Functional Laterality 050105 experimental psychology Executive Function Young Adult 03 medical and health sciences 0302 clinical medicine Parietal Lobe Journal Article Reaction Time medicine Humans Attention 0501 psychology and cognitive sciences Eye Movement Measurements Balance (ability) Transcranial direct-current stimulation 05 social sciences Attentional control Differential effects Brain stimulation Female Psychology 030217 neurology & neurosurgery Cognitive psychology |
| Zdroj: | Journal of Cognitive Neuroscience, 29(7), 1267-1278. MIT Press |
| ISSN: | 1530-8898 0898-929X |
| Popis: | The concept of interhemispheric competition has been very influential in attention research, and the occurrence of biased attention due to an imbalance in posterior parietal cortex (PPC) is well documented. In this context, the vast majority of studies have assessed attentional performance with tasks that did not include an explicit experimental manipulation of attention, and, as a consequence, it remains largely unknown how these findings relate to core attentional constructs such as endogenous and exogenous control and spatial orienting and reorienting. We here addressed this open question by creating an imbalance between left and right PPC with transcranial direct current stimulation, resulting in right-hemispheric dominance, and assessed performance on three experimental paradigms that isolate distinct attentional processes. The comparison between active and sham transcranial direct current stimulations revealed a highly informative pattern of results with differential effects across tasks. Our results demonstrate the functional necessity of PPC for endogenous and exogenous attentional control and, importantly, link the concept of interhemispheric competition to core attentional processes, thus moving beyond the notion of biased attention after noninvasive brain stimulation over PPC. |
| Databáze: | OpenAIRE |
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