Discriminating the cortical representation sites of tongue and lip movement by functional MRI
| Autor: | Rainer Goebel, Kathrin Lasek, Klaus Lackner, Barbara Krug, Volker Sturm, Orlando Guntinas-Lichius, Volker Hesselmann, Bettina Sorger |
|---|---|
| Přispěvatelé: | Cognitive Neuroscience, RS: FPN CN I |
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: |
Adult
Male medicine.medical_specialty Neurology Movement Brain mapping Functional Laterality Discrimination Psychological Tongue Cortex (anatomy) medicine Humans Radiology Nuclear Medicine and imaging Brain Mapping Radiological and Ultrasound Technology medicine.diagnostic_test Motor Cortex Magnetic Resonance Imaging Facial nerve Lip medicine.anatomical_structure Female Neurology (clinical) Anatomy Primary motor cortex Functional magnetic resonance imaging Psychology Hypoglossal nerve Neuroscience |
| Zdroj: | Brain Topography, 16(3), 159-167. Springer, Cham ResearcherID |
| ISSN: | 0896-0267 |
| Popis: | The purpose of this study was to investigate the possibility to discriminate the representation sites of lip and tongue movement in the primary motor cortex (PMC). In contrast to preceding studies this research was particularly focused on single subject analysis. Procedures: Six healthy right-handed volunteers underwent functional magnetic resonance imaging (fMRI) by means of a 1.5 tesla scanner. Using a block design the subjects had to perform two different motor tasks: horizontal tongue movement and symmetrical lip pursing. To ensure that only the functional selective cortical representations for each particular motor task were determined, the approach of contrasting both motor paradigms was followed during data analysis. Principle results: Selective cortex activations for both motor tasks were detectable in the motor strips and could be spatially discriminated for the whole group and for the majority of the single subjects in both hemispheres. Furthermore, expanded regions responsive to both motor tasks were found bilaterally. Conclusions: The individually proven possibility to differentiate the cortical representation sites of tongue and lip movements opens the chance to monitor therapeutic cortical effects after neuro-reconstructive surgery, e. g. hypoglossal-facial nerve anastomosis (HFA). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink