Results 231 to 240 of about 186,183 (278)
Some of the next articles are maybe not open access.
The Lancet, 1970
Abstract It is postulated that occipital alpha rhythm in man is not generated in the occipital cortex, but by tremor of the extraocular muscles. It is thought that tremor modulates the corneoretinal potential and this modulation is recorded at the occiput because of the anatomical organisation of the orbital contents within the skull.
O C, Lippold, G E, Novotny
openaire +4 more sources
Abstract It is postulated that occipital alpha rhythm in man is not generated in the occipital cortex, but by tremor of the extraocular muscles. It is thought that tremor modulates the corneoretinal potential and this modulation is recorded at the occiput because of the anatomical organisation of the orbital contents within the skull.
O C, Lippold, G E, Novotny
openaire +4 more sources
Neurobiology of Aging, 2018
Alpha rhythm (AR) changes are the most pronounced electroencephalogram phenomenon in the aging brain. We analyzed them based on the inherent AR structure obtained by parallel factor analysis decomposition in the cortical source space. AR showed a stable multicomponent structure in 78% of sixty 20- to 81-year-old healthy adults.
Maria G, Knyazeva +3 more
openaire +4 more sources
Alpha rhythm (AR) changes are the most pronounced electroencephalogram phenomenon in the aging brain. We analyzed them based on the inherent AR structure obtained by parallel factor analysis decomposition in the cortical source space. AR showed a stable multicomponent structure in 78% of sixty 20- to 81-year-old healthy adults.
Maria G, Knyazeva +3 more
openaire +4 more sources
ALPHA RHYTHM, LATERALITY, LITHIUM, AND MOOD
The Lancet, 1976G F, Harding +2 more
openaire +4 more sources
Neuropsychobiology, 2004
The electroencephalographic effects of two intravenous sedative/hypnotic drugs, propofol and thiopental, were studied at three stable blood concentrations in 52 normal healthy volunteers. The higher concentration resulted in unresponsiveness (lack of response to auditory/tactile stimuli) in all subjects. This report describes the strong frontal-central
Vladimir A, Feshchenko +2 more
openaire +2 more sources
The electroencephalographic effects of two intravenous sedative/hypnotic drugs, propofol and thiopental, were studied at three stable blood concentrations in 52 normal healthy volunteers. The higher concentration resulted in unresponsiveness (lack of response to auditory/tactile stimuli) in all subjects. This report describes the strong frontal-central
Vladimir A, Feshchenko +2 more
openaire +2 more sources
Clinical Neurophysiology, 1999
The 'functional topography' approach has been applied to study alpha rhythms in infant twins during the second half-year of life. The experimental sample included 154 normal infants born at 32-41 weeks of gestational age. Their chronological age varied from 7.4 to 12.4 months.
T A, Stroganova +2 more
openaire +2 more sources
The 'functional topography' approach has been applied to study alpha rhythms in infant twins during the second half-year of life. The experimental sample included 154 normal infants born at 32-41 weeks of gestational age. Their chronological age varied from 7.4 to 12.4 months.
T A, Stroganova +2 more
openaire +2 more sources
Decomposition of posterior alpha rhythm
IEEE Transactions on Biomedical Engineering, 2000The classical posterior alpha rhythm has been decomposed into regular and irregular components using orthogonal transformation. A periodicity generator is considered, which has three characteristic control parameters: the periodicity, the amplitudes or scaling factors and the pattern associated with successive periodic segments.
Bhattacharya, J. +2 more
openaire +3 more sources
Nature, 1971
THE principal objection to the theory1,2 that extra-ocular tremor generates alpha rhythm has been the indisputable fact that it is possible to record it in some patients who have had both eyes removed3.
O C, Lippold, J C, Shaw
openaire +2 more sources
THE principal objection to the theory1,2 that extra-ocular tremor generates alpha rhythm has been the indisputable fact that it is possible to record it in some patients who have had both eyes removed3.
O C, Lippold, J C, Shaw
openaire +2 more sources
Personality and the Alpha Rhythm
British Journal of Psychiatry, 1967Since human electroencephalography was first introduced by Berger in 1929, there have been many attempts to correlate the alpha rhythm with various aspects of personality. Lemere (1936) first reported a relationship between “good” and “poor” alpha rhythms and cyclothymic and schizoid personalities respectively.
G W, Fenton, L, Scotton
openaire +2 more sources