REGIONAL CEREBRAL BLOOD FLOW (RCBF RCBF): Regional cerebral blood flow monitoring may help boost the validity of the regional localization theory, in which specific parts of the brain control specific functions.. measure of the blood flow in a specific area of the brain, using positron emission tomography (PET scans) and/or single photon emission computed tomography.
If a dog goes on his back to you he is accepting you as his master. This is part of the answer but here's a little more in-depth version as reported by USA Today. In general, dogs lie on their back for three reasons.
The evidence on the Oxford English Corpus shows that people often mistakenly use lay when they should be using lie: X I want to lay down, itâll be more comfortable. â I want to lie downâ¦. [infinitive of lie (1)] X The tortoise lays on its back, its belly baking in the hot sun. â The tortoise lies on its backâ¦ [present of lie (1)]