光ひかりトポグラフィーMeanings1nounoptical topographyA medical imaging technique that uses near-infrared light to measure brain activity, often used in research and clinical settings.光ひかりトポグラフィーは、脳のうの活かつ動どうを非ひ侵しん襲しゅう的てきに計けい測そくする方ほう法ほうの一ひとつです。Optical topography is one method for non-invasively measuring brain activity.