Learn More
Human postural dynamics was investigated in 12 normal subjects by means of a force platform recording body sway, induced by bipolar transmastoid galvanic stimulation of the vestibular nerve and labyrinth. The model adopted was that of an inverted segmented pendulum, the dynamics of postural control being assumed to be reflected in the stabilizing forces(More)
The significance to human postural control of pressor information from the feet was investigated during vestibular disturbance in seven normal subjects who were exposed to bipolar biaural galvanic stimulation of the vestibular nerves before and after their feet were anaesthetized with hypothermia. The increase in body sway in the lateral plane induced by(More)
The effect of primary vestibular disturbance on postural control was investigated in 11 normal subjects exposed to perturbation by bi-polar binaural galvanic stimulation of the vestibular nerve. The stimulus consisted of 30 s of sinusoidal galvanic stimulation at a frequencies of 0.2, 0.3, 0.5, 1.0, 1.5, 2.0, 3.0 and 4.0 Hz, with a current of +/- 1 mA, the(More)
The objective was to investigate if healthy elderly people respond and adapt differently to postural disturbances compared to middle-aged people. Thirty middle-aged (mean age 37.8 years, range 24-56 years) and forty healthy elderly subjects (mean age 74.6 years, range 66-88 years) were tested with posturography. Body sway was evoked by applying pseudorandom(More)
CONCLUSION The properties of a foam surface significantly affect body movement variance. Therefore, studies where different kinds of foam have been used may not provide congruent results. OBJECTIVES To investigate whether different properties of foam affect body movement variance (32 subjects, mean age 22.5 years) in terms of linear head, shoulder, hip(More)
OBJECTIVE Tinnitus is known to have an association with depression and other psychiatric disorders. As part of a larger epidemiological survey, we evaluated the associations among tinnitus, depression and alexithymia in a group of elderly people. METHODS A survey of hearing loss, audiological rehabilitation and associated morbidity in a senior population(More)
CONCLUSION Plasticity of auditory pitch discrimination driven by cochlear implant (CI) use uring a 2.5-year follow-up was indicated by an enhancement of the amplitude of mismatch negativity (MMN) event-related brain potential (ERP) to pure tone frequency changes. OBJECTIVES To follow up changes in MMN elicited to frequency and duration changes in tones(More)
BACKGROUND Preterm and low-birth-weight infants have an increased risk of sensorineural hearing loss. Brainstem auditory-evoked potentials (BAEP) are an effective method to detect subtle deficits in impulse conduction in the auditory pathway. Abnormalities on diffusion tensor imaging (DTI) have been shown to be associated with perinatal white-matter injury(More)
Standing on a foam surface is believed to exaggerate balance deficits by decreasing the reliability of somatosensory information from cutaneous mechanoreceptors on the plantar soles (i.e. base of feet) and by altering the effectiveness of ankle torque. The aim was to further document the nature of foam posturography testing by comparing between standing on(More)
The results from this controlled study of 12 schizophrenics refractory to ordinary doses of neuroleptics indicate that treatment with fluphenazine enanthate in higher doses than normal (10--20 times higher) might give reduction in psychopathology beyond what can be obtained with normal doses. In four patients the symptom reduction on high doses was(More)