Consciousness in a multilevel architecture: Evidence from the right side of the brain
| Autor: | Artemy Kotov, Olga A. Krotkova, Vyacheslav A. Orlov, Maxim Sharaev, Vadim L. Ushakov, Boris M. Velichkovsky, V. M. Verkhlyutov |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male Left and right Consciousness media_common.quotation_subject Prefrontal Cortex Experimental and Cognitive Psychology Hippocampus Functional Laterality 050105 experimental psychology Lateralization of brain function Young Adult 03 medical and health sciences Cognition Spatial Processing 0302 clinical medicine Arts and Humanities (miscellaneous) Neural Pathways Developmental and Educational Psychology medicine Humans 0501 psychology and cognitive sciences media_common Neocortex Resting state fMRI medicine.diagnostic_test Functional Neuroimaging 05 social sciences Brain Human brain Amygdala Magnetic Resonance Imaging Frontal Lobe medicine.anatomical_structure Egocentrism Female Psychology Functional magnetic resonance imaging Neuroscience 030217 neurology & neurosurgery |
| Zdroj: | Consciousness and Cognition. 64:227-239 |
| ISSN: | 1053-8100 |
| DOI: | 10.1016/j.concog.2018.06.004 |
| Popis: | By taking into account Bruce Bridgeman's interest in an evolutionary framing of human cognition, we examine effective (cause-and-effect) connectivity among cortical structures related to different parts of the triune phylogenetic stratification: archicortex, paleocortex and neocortex. Using resting-state functional magnetic resonance imaging data from 25 healthy subjects and spectral Dynamic Causal Modeling, we report interactions among 10 symmetrical left and right brain areas. Our results testify to general rightward and top-down biases in excitatory interactions of these structures during resting state, when self-related contemplation prevails over more objectified conceptual thinking. The right hippocampus is the only structure that shows bottom-up excitatory influences extending to the frontopolar cortex. The right ventrolateral cortex also plays a prominent role as it interacts with the majority of nodes within and between evolutionary distinct brain subdivisions. These results suggest the existence of several levels of cognitive-affective organization in the human brain and their profound lateralization. |
| Databáze: | OpenAIRE |
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