Neurofunctional Symmetries and Asymmetries during Voluntary out-of- and within-Body Vivid Imagery Concurrent with Orienting Attention and Visuospatial Detection
We explored whether two visual mental imagery experiences may be differentiated by electroencephalographic (EEG) and performance interactions with concurrent orienting external attention (OEA) to stimulus location and subsequent visuospatial detection. We measured within-subject (N = 10) event-relat...
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MDPI AG
2021-08-01
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| Online Access: | https://www.mdpi.com/2073-8994/13/8/1549 |
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| author | Amedeo D’Angiulli Darren Kenney Dao Anh Thu Pham Etienne Lefebvre Justin Bellavance Derrick Matthew Buchanan |
| author_facet | Amedeo D’Angiulli Darren Kenney Dao Anh Thu Pham Etienne Lefebvre Justin Bellavance Derrick Matthew Buchanan |
| author_sort | Amedeo D’Angiulli |
| collection | DOAJ |
| description | We explored whether two visual mental imagery experiences may be differentiated by electroencephalographic (EEG) and performance interactions with concurrent orienting external attention (OEA) to stimulus location and subsequent visuospatial detection. We measured within-subject (N = 10) event-related potential (ERP) changes during out-of-body imagery (OBI)—vivid imagery of a vertical line outside of the head/body—and within-body imagery (WBI)—vivid imagery of the line within one’s own head. Furthermore, we measured ERP changes and line offset Vernier acuity (hyperacuity) performance concurrent with those imagery, compared to baseline detection without imagery. Relative to OEA baseline, OBI yielded larger N200 and P300, whereas WBI yielded larger P50, P100, N400, and P800. Additionally, hyperacuity dropped significantly when concurrent with both imagery types. Partial least squares analysis combined behavioural performance, ERPs, and/or event-related EEG band power (ERBP). For both imagery types, hyperacuity reduction correlated with opposite frontal and occipital ERP amplitude and polarity changes. Furthermore, ERP modulation and ERBP synchronizations for all EEG frequencies correlated inversely with hyperacuity. Dipole Source Localization Analysis revealed unique generators in the left middle temporal gyrus (WBI) and in the right frontal middle gyrus (OBI), whereas the common generators were in the left precuneus and middle occipital cortex (cuneus). Imagery experiences, we conclude, can be identified by symmetric and asymmetric combined neurophysiological-behavioural patterns in interactions with the width of attentional focus. |
| first_indexed | 2024-03-10T08:20:02Z |
| format | Article |
| id | doaj.art-e894aa4b478b438abac592a84fea1ced |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-10T08:20:02Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-e894aa4b478b438abac592a84fea1ced2023-11-22T10:03:19ZengMDPI AGSymmetry2073-89942021-08-01138154910.3390/sym13081549Neurofunctional Symmetries and Asymmetries during Voluntary out-of- and within-Body Vivid Imagery Concurrent with Orienting Attention and Visuospatial DetectionAmedeo D’Angiulli0Darren Kenney1Dao Anh Thu Pham2Etienne Lefebvre3Justin Bellavance4Derrick Matthew Buchanan5Neuroscience of Imagination, Cognition and Emotion Research (NICER) Lab, Carleton University, Ottawa, ON KS1 5B6, CanadaDepartment of Neuroscience, Carleton University, Ottawa, ON K1S 5B6, CanadaNeuroscience of Imagination, Cognition and Emotion Research (NICER) Lab, Carleton University, Ottawa, ON KS1 5B6, CanadaNeuroscience of Imagination, Cognition and Emotion Research (NICER) Lab, Carleton University, Ottawa, ON KS1 5B6, CanadaDepartment of Neuroscience, Carleton University, Ottawa, ON K1S 5B6, CanadaNeuroscience of Imagination, Cognition and Emotion Research (NICER) Lab, Carleton University, Ottawa, ON KS1 5B6, CanadaWe explored whether two visual mental imagery experiences may be differentiated by electroencephalographic (EEG) and performance interactions with concurrent orienting external attention (OEA) to stimulus location and subsequent visuospatial detection. We measured within-subject (N = 10) event-related potential (ERP) changes during out-of-body imagery (OBI)—vivid imagery of a vertical line outside of the head/body—and within-body imagery (WBI)—vivid imagery of the line within one’s own head. Furthermore, we measured ERP changes and line offset Vernier acuity (hyperacuity) performance concurrent with those imagery, compared to baseline detection without imagery. Relative to OEA baseline, OBI yielded larger N200 and P300, whereas WBI yielded larger P50, P100, N400, and P800. Additionally, hyperacuity dropped significantly when concurrent with both imagery types. Partial least squares analysis combined behavioural performance, ERPs, and/or event-related EEG band power (ERBP). For both imagery types, hyperacuity reduction correlated with opposite frontal and occipital ERP amplitude and polarity changes. Furthermore, ERP modulation and ERBP synchronizations for all EEG frequencies correlated inversely with hyperacuity. Dipole Source Localization Analysis revealed unique generators in the left middle temporal gyrus (WBI) and in the right frontal middle gyrus (OBI), whereas the common generators were in the left precuneus and middle occipital cortex (cuneus). Imagery experiences, we conclude, can be identified by symmetric and asymmetric combined neurophysiological-behavioural patterns in interactions with the width of attentional focus.https://www.mdpi.com/2073-8994/13/8/1549neurofunctional symmetryhemispheric asymmetrymental imageryvisuospatial perceptionhyperacuityERP |
| spellingShingle | Amedeo D’Angiulli Darren Kenney Dao Anh Thu Pham Etienne Lefebvre Justin Bellavance Derrick Matthew Buchanan Neurofunctional Symmetries and Asymmetries during Voluntary out-of- and within-Body Vivid Imagery Concurrent with Orienting Attention and Visuospatial Detection Symmetry neurofunctional symmetry hemispheric asymmetry mental imagery visuospatial perception hyperacuity ERP |
| title | Neurofunctional Symmetries and Asymmetries during Voluntary out-of- and within-Body Vivid Imagery Concurrent with Orienting Attention and Visuospatial Detection |
| title_full | Neurofunctional Symmetries and Asymmetries during Voluntary out-of- and within-Body Vivid Imagery Concurrent with Orienting Attention and Visuospatial Detection |
| title_fullStr | Neurofunctional Symmetries and Asymmetries during Voluntary out-of- and within-Body Vivid Imagery Concurrent with Orienting Attention and Visuospatial Detection |
| title_full_unstemmed | Neurofunctional Symmetries and Asymmetries during Voluntary out-of- and within-Body Vivid Imagery Concurrent with Orienting Attention and Visuospatial Detection |
| title_short | Neurofunctional Symmetries and Asymmetries during Voluntary out-of- and within-Body Vivid Imagery Concurrent with Orienting Attention and Visuospatial Detection |
| title_sort | neurofunctional symmetries and asymmetries during voluntary out of and within body vivid imagery concurrent with orienting attention and visuospatial detection |
| topic | neurofunctional symmetry hemispheric asymmetry mental imagery visuospatial perception hyperacuity ERP |
| url | https://www.mdpi.com/2073-8994/13/8/1549 |
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