Longitudinal fissure result from lesions to them. Diffusion tensor imaging (DTI or dMRI) along with fiber-tracking (FT) algorithms and functional Magnetic Resonance Imaging (fMRI) is used to image these bundles. For instance, occipital-callosal fiber tracts were localized with 1–2 mm precision using DTI-TF techniques - which are very important for the cooperation of visual cortices, and any lesion to them can lead to alexia, the inability to read. Longitudinal fissure The longitudinal fissure (or cerebral fissure, median longitudinal fissure, or interhemispheric fissure) is the deep groove that separates the two hemispheres of the vertebrate brain. The medial surfaces of the two hemispheres
Sylvian Joululaulu Sylvian Joululaulu Sylvian Joululaulu (Swedish: "Sylvias hälsning från Sicilien"), "Sylvia's Christmas Song", is a poem by Zachris Topelius from 1853, which was composed to a christmas carol by Karl Collan. The poem has been translated to Finnish by both Elina Vaara and Martti Korpilahti, and the latter one from 1918 is one of the most beloved Finnish christmas carols. It has been chosen as the best Finnish christmas carol in the 1960s and again in 2002 in a poll by Yleisradio. The poem is a part of the collection "Sylvian laulut": Sylvia, or Eurasian blackcap, ("Sylvia atricapilla"), is a migratory