FMRI detects activation of the visual association cortex during laser AP of the foot in humans

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Siedentopf CM, Golaszewski SM, Mottaghy FM, Ruff CC, Felber

S, Schlager A. Functional magnetic resonance imaging detects

activation of the visual association cortex during laser AP of the

foot in humans.Neurosci Lett. 2002 Jul 12;327(1):53-6. Dept of

Radiology II, University Hospital of Innsbruck, Innsbruck, Austria.

The aim of this study was to investigate the effect of laser AP on

cerebral activation. Using functional magnetic imaging (fMRI)

cortical activations during laser AP at the left foot (Bladder 67) and

dummy AP, were compared employing a block design in ten

healthy male volunteers. All experiments were done on a 1.5 Tesla

magnetic resonance scanner equipped with a circular polarized

head coil. During laser AP, we found activation in the cuneus

corresponding to Brodmann Area (BA) 18 and the medial occipital

gyrus (BA 19) of the ipsilateral visual cortex. Placebo stimulation

did not show any activation. We could demonstrate that laser AP

of a specific acupoint, empirically related to ophthalmic disorders,

leads to activation of visual brain areas, whereas placebo AP does

not. These results indicate that fMRI has the potential to elucidate

effects of AP on brain activity. Publication Types: Clinical Trial

Controlled Clinical Trial MeSH Terms: Acupuncture* Adolescent

Adult Foot Human Lasers Magnetic Resonance Imaging* Male

Support, Non-U.S. Gov't Visual Cortex/physiology* PMID:

12098499 [PubMed - indexed for MEDLINE]

 

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