Partial Similarity Reveals Dynamics in Brainstem-Midbrain Networks during Trigeminal Nociception
Imaging studies help us understand the important role of brainstem and midbrain regions in human trigeminal pain processing without solving the question of how these regions actually interact. In the current study, we describe this connectivity and its dynamics during nociception with a novel analyt...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Brain Sciences |
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| Online Access: | https://www.mdpi.com/2076-3425/10/9/603 |
| _version_ | 1797554774904668160 |
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| author | Arne May Laura Helene Schulte Guido Nolte Jan Mehnert |
| author_facet | Arne May Laura Helene Schulte Guido Nolte Jan Mehnert |
| author_sort | Arne May |
| collection | DOAJ |
| description | Imaging studies help us understand the important role of brainstem and midbrain regions in human trigeminal pain processing without solving the question of how these regions actually interact. In the current study, we describe this connectivity and its dynamics during nociception with a novel analytical approach called Partial Similarity (PS). We developed PS specifically to estimate the communication between individual hubs of the network in contrast to the overall communication within that network. Partial Similarity works on trial-to-trial variance of neuronal activity acquired with functional magnetic resonance imaging. It discovers direct communication between two hubs considering the remainder of the network as confounds. A similar method to PS is Representational Similarity, which works with ordinary correlations and does not consider any external influence on the communication between two hubs. Particularly the combination of Representational Similarity and Partial Similarity analysis unravels brainstem dynamics involved in trigeminal pain using the spinal trigeminal nucleus (STN)—the first relay station of peripheral trigeminal input—as a seed region. The combination of both methods can be valuable tools in discovering the network dynamics in fMRI and an important instrument for future insight into the nature of various neurological diseases like primary headaches. |
| first_indexed | 2024-03-10T16:36:51Z |
| format | Article |
| id | doaj.art-73b951f864c64a42be2ae3ae848d67a2 |
| institution | Directory Open Access Journal |
| issn | 2076-3425 |
| language | English |
| last_indexed | 2024-03-10T16:36:51Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Brain Sciences |
| spelling | doaj.art-73b951f864c64a42be2ae3ae848d67a22023-11-20T12:21:43ZengMDPI AGBrain Sciences2076-34252020-09-0110960310.3390/brainsci10090603Partial Similarity Reveals Dynamics in Brainstem-Midbrain Networks during Trigeminal NociceptionArne May0Laura Helene Schulte1Guido Nolte2Jan Mehnert3Department of Systems Neuroscience, University Medical Center Eppendorf, 20246 Hamburg, GermanyDepartment of Systems Neuroscience, University Medical Center Eppendorf, 20246 Hamburg, GermanyDepartment of Neurophysiology and Pathophysiology, University Medical Center Eppendorf, 20246 Hamburg, GermanyDepartment of Systems Neuroscience, University Medical Center Eppendorf, 20246 Hamburg, GermanyImaging studies help us understand the important role of brainstem and midbrain regions in human trigeminal pain processing without solving the question of how these regions actually interact. In the current study, we describe this connectivity and its dynamics during nociception with a novel analytical approach called Partial Similarity (PS). We developed PS specifically to estimate the communication between individual hubs of the network in contrast to the overall communication within that network. Partial Similarity works on trial-to-trial variance of neuronal activity acquired with functional magnetic resonance imaging. It discovers direct communication between two hubs considering the remainder of the network as confounds. A similar method to PS is Representational Similarity, which works with ordinary correlations and does not consider any external influence on the communication between two hubs. Particularly the combination of Representational Similarity and Partial Similarity analysis unravels brainstem dynamics involved in trigeminal pain using the spinal trigeminal nucleus (STN)—the first relay station of peripheral trigeminal input—as a seed region. The combination of both methods can be valuable tools in discovering the network dynamics in fMRI and an important instrument for future insight into the nature of various neurological diseases like primary headaches.https://www.mdpi.com/2076-3425/10/9/603painpartial similarityrepresentational similaritycorrelationpartial correlationfMRI |
| spellingShingle | Arne May Laura Helene Schulte Guido Nolte Jan Mehnert Partial Similarity Reveals Dynamics in Brainstem-Midbrain Networks during Trigeminal Nociception Brain Sciences pain partial similarity representational similarity correlation partial correlation fMRI |
| title | Partial Similarity Reveals Dynamics in Brainstem-Midbrain Networks during Trigeminal Nociception |
| title_full | Partial Similarity Reveals Dynamics in Brainstem-Midbrain Networks during Trigeminal Nociception |
| title_fullStr | Partial Similarity Reveals Dynamics in Brainstem-Midbrain Networks during Trigeminal Nociception |
| title_full_unstemmed | Partial Similarity Reveals Dynamics in Brainstem-Midbrain Networks during Trigeminal Nociception |
| title_short | Partial Similarity Reveals Dynamics in Brainstem-Midbrain Networks during Trigeminal Nociception |
| title_sort | partial similarity reveals dynamics in brainstem midbrain networks during trigeminal nociception |
| topic | pain partial similarity representational similarity correlation partial correlation fMRI |
| url | https://www.mdpi.com/2076-3425/10/9/603 |
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