Equilibrium

The vascular system and its influence under sympathetic and parasympathetic stimulations plays an essential role in neurophysiology of equilibrium.

Un nistagmo parossistico posizionale (Ny.P.P.) caratterizzato da un pattern oculomotorio compatibile con una deflessione ampullifuga della cupola del canale semicircolare posteriore (p.s.c.) e da caratteristiche temporali in accordo con il modello della canololitiasi labirintica , rappresenta attualmente l’elemento diagnostico di certezza della variante atipica ampullifuga della Vertigine Parossistica Posizionale Benigna (p.s.c.-B.P.P.V.). Tuttavia , in alcuni […]

THE FUNCTION OF THE VESTIBULO-OCULAR REFLEX (VOR) IS TO STABILIZE VISUAL IMAGES ON THE RETINA DURING HEAD MOVEMENTS, THEREBY ENSURING MAXIMAL VISUAL ACUITY. IT IS POSSIBLE TO OBTAIN RELIABLE AND QUANTITATIVE INFORMATION ON VESTIBULAR FUNCTION USING A MOTORISED CHAIR, WITH THE SUBJECT’S HEAD AND BODY FIXED. SUCH TESTING OF THE VOR HAS ENTAILED LOW-FREQUENCY ROTATION […]

Dai dati della Letteratura e dalle discussioni in merito alla relazione esistente tra apparato stomatognatico e postura, si può dedurre che una patologia a carico di una delle componenti del sistema stomatognatico può modificare l’equilibrio, influenzando le afferenze propriocettive degli altri distretti. I disordini cranio mandibolari possono causare disturbi funzionali della colonna cervicale. Durante la […]

The relationship between occlusion and equilibrium system must be interpreted as a base condition to program a rehabilitation, both in stomatognatic problems and in equilibrium problems. Use of stabylometric system, using references to vestibular, visual, somatosensorial systems, the stabylometric system allows to evaluate the interferences occurring during compensation within the single parts that made the […]

INTRODUCTION: Our purpose of study is to verify the possibility of applying a diagnostic method for the evaluation of vestibular function using an “atraumatic” method of examination. We are currently using a computerized system that will objectively analyse the answer of the patients undergoing “virtual reality” stimuli in the absence of influence of external parameters. […]

The vestibular pathway, like other sensorial systems, has a cortical representation. In 1985 we have published our first investigation on «Variations of the cortical electrical activity during supramaximal vestibular stimulations».

THE ROLE OF THE VESTIBULAR SYSTEM IS TO INTEGRATE POLISENSORIAL CUES AND PROVIDE A CONTINUOS AND PRECISE REPRESENTATION EITHER OF THE BODY SHAPE (SEGMENTAL BODY ORIENTATION, THAT TO SAY PERCEPTION OF THE RECIPROCAL POSITION OF BODY SEGMENTS ) OR THE ORIENTATION OF THE BODY INTO THE ENVIRONMENT (SPATIAL ORIENTATION). MELATONIN IS A NATURAL HORMONE SECRETED […]

The cranial shifting of body fluids developing in microgravity can be modelled by –300 head-down tilt body position (antiorthostatic posture) on Earth. Authors examined a group of 13 healthy voluntary young men in antiorthostatic posture and recorded the alteration of parameters in complex examinations. Among them pure tone threshold and speech threshold examinations were carried […]

Several data indicate that compensation and habituation processes are the main phenomenons of the plasticity of central nervous system (CNS), especially the plasticity of vestibular system. The detailed role of particular parts of CNS in adapatation after lessions has not been clear yet (2). Evertbody knows that in birds and reptiles cerebral motor cortex in […]