Funktionelle MRT mit Negativen BOLD-Signalveränderungen im Primären Somatosensorischen Kortex unter Einluss des Alterns
JM Sohns, S Gröschel, J Baudewig, L Becker, C Schmidt-Samoa, J Menke, W Staab, J Lotz, A Dechent, A Kastrup · RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren · 2013 · Heft 04
Bibliografische Angaben
Zusammenfassung
Ziele: In addition to a contralateral activation of the primary and secondary somatosensory cortex, peripheral sensory stimulation has been shown to elicit responses in the ipsilateral primary somatosensory cortex (SI). In particular, evidence is accumulating that processes of interhemispheric inhibition as depicted by negative BOLD signal changes are part of somatosensory processes. The aim of the study was to analyze age-related differences in patterns of cerebral activation in the somatosensory system in general and processes of interhemispheric inhibition in particular. Methode: An fMRI study was performed i…