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Rappresentazione somatotopica della propriocettività oculare nel collicolo superiore

Ruggero Bortolami;  Rolando Marini;  Raffaele Manni;  Oreste Pane — 1980

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti

The aim of this investigation was to analyse in nembutalized and curarized lambs a somatotopic organization of extraocular muscle proprioceptive afferents in the superior colliculus. Responses to moderate manual stretch on individual eye muscles were recorded by means of tungsten microelectrodes, along the dorso-ventral axis in the superficial layers of the superior colliculus. The mesencephalic representation of the eye muscle proprioception was somatotopically arranged in the following manner:...

Nucleo mesencefalico del trigemino nell'anitra: effetti della stimolazione del nervo vago e della sostanza reticolare

Ruggero Bortolami;  Ermanno Manni;  Magda Passatore;  Maria Luisa Lucchi;  Rio Perinetti Casoni;  Claudio Manni — 1980

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti

The masseteric reflex elicited by electrical stimulation of the mesencephalic trigeminal nucleus (MTN) was influenced by electrical stimulation of the central stump of the vagal nerve and of the reticular formation in the duck; the vagal nerve exerted predominantly inhibition while the reticular formation could inhibit or enhance the jaw reflex movements: increase was the most common effect. Unitary discharge of the MTN was recorded in curarized ducks by means of tungsten microelectrodes. Units...

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