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Recent observations by Unsofort & Tchetera pointing out that „the more you throw tomatoes on Sopranoes, the more they yell“ and comparative studies dealing with the gasp-reaction (Otis & Pifre, 1964), hiccup (Carpentier & Fialip, 1964), cat purring (Remmers & Gautier, 1972), HM reflex (Vincent et al., 1976), ventriloquy (McCulloch et al., 1964), shriek scream, shrill and other hysterical reactions (Sturm & Drang, 1973) provoked by tomato as well as cabbages, apples, cream tarts, shoes, buts and anvil throwing (Harvar & Mercy, 1973) have led to the steady assumption of a positive feedback organization of the YR based upon a semilinear quadristable multi-switching interdigitation of neuronal sub-networks functioning en desordre (Beulott et al., 1974). Although this hypothesis seems rather seductive, it lacks anatomical and physiological foundations and we therefore decided to explore systematically the internal incremental or decremental organization of the YR, allowing a tentative anatomic model.