Silent and continuous fMRI scanning differentially modulate activation in an auditory language comprehension task
| Autor: | Peter Boesiger, Lutz Jäncke, Eveline Geiser, Martin Meyer, Tino Zaehle, Conny F. Schmidt |
|---|---|
| Přispěvatelé: | Physics of Living Systems, University of Zurich, Meyer, Martin |
| Rok vydání: | 2007 |
| Předmět: |
Male
Speech recognition Functional Laterality 170 Ethics Contrast (vision) Research Articles Language media_common Cerebral Cortex Brain Mapping Language Tests Radiological and Ultrasound Technology medicine.diagnostic_test 10093 Institute of Psychology 2702 Anatomy Magnetic Resonance Imaging 2728 Neurology (clinical) Neurology Radiology Nuclear Medicine and imaging Cerebrovascular Circulation Speech Perception Female Anatomy Artifacts Psychology psychological phenomena and processes Adult Auditory perception media_common.quotation_subject Clinical Neurology 610 Medicine & health Auditory cortex 10043 Clinic for Neuroradiology Perception medicine 2741 Radiology Nuclear Medicine and Imaging Humans 10237 Institute of Biomedical Engineering Radiology Nuclear Medicine and imaging 3614 Radiological and Ultrasound Technology Auditory Cortex Communication Neural correlates of consciousness business.industry Noise Acoustic Stimulation 2808 Neurology Neurology (clinical) Nerve Net 150 Psychology business Functional magnetic resonance imaging Insula |
| Zdroj: | Schmidt, C, Zaehle, T, Meyer, M, Geiser, E, Boesiger, P & Jancke, L 2008, ' Silent and continuous fMRI scanning differentially modulate activation in an auditory language comprehension task ', Human Brain Mapping, vol. 29, no. 1, pp. 46-56 . https://doi.org/10.1002/hbm.20372 Human Brain Mapping, 29(1), 46-56. Wiley-Liss Inc. BASE-Bielefeld Academic Search Engine Hum Brain Mapp |
| ISSN: | 1097-0193 1065-9471 |
| DOI: | 10.1002/hbm.20372 |
| Popis: | Sparse temporal acquisition schemes have been adopted to investigate the neural correlates of human audition using blood‐oxygen‐level dependent (BOLD) based functional magnetic resonance imaging (fMRI) devoid of ambient confounding acoustic scanner noise. These schemes have previously been extended to clustered‐sparse temporal acquisition designs which record several subsequent BOLD contrast images in rapid succession in order to enhance temporal sampling efficiency. In the present study we demonstrate that an event‐related task design can effectively be combined with a clustered temporal acquisition technique in an auditory language comprehension task. The same fifteen volunteers performed two separate auditory runs which either applied customary fMRI acquisition (CA) composed of continuous scanner noise or “silent” fMRI built on a clustered temporal acquisition (CTA) protocol. In accord with our hypothesis, the CTA scheme relative to the CA protocol is accompanied by significantly stronger functional responses along the entire superior temporal plane. By contrast, the bilateral insulae engage more strongly during continuous scanning. A post‐hoc region‐of‐interest analysis reveals cortical activation in subportions of the supratemporal plane which varies as a function of acquisition protocol. The middle part of the supratemporal plane shows a rightward asymmetry only for the CTA scheme while the posterior supratemporal plane exposes a significantly stronger leftward asymmetry during the CTA. Our findings implicate that silent fMRI is advantageous when it comes to the exploration of auditory and speech functions residing in the supratemporal plane. Hum Brain Mapp, 2008. © 2007 Wiley‐Liss, Inc. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|