منابع مشابه
Abnormal head movements.
Abnormal head movements have been studied in a variety of diseases using objective recording techniques and the data analysed with respect to the frequency content of the movement. Flopping, nodding, tic, chorea, myoclonic jerks, and most head tremors involve frequencies of approximately 2 and 4 Hz which correspond to the natural fundamental and second harmonic resonances of the head as determi...
متن کاملPhysiology of abnormal movements.
The units of the central nervous system controlling voluntary movement are described and the roles of the motor and sensory cortex, of the basal ganglia and cerebellum and of the final common loop are outlined. The pathophysiology underlying disturbances of movement, power and tone of the limbs is discussed, with particular reference to the more common dyskinesias.
متن کاملhypokalemia-induced abnormal movements: case report
introduction a sudden loss of consciousness followed by abnormal movements can be ictal or syncopal in origin. transient response by the brain to sudden decrease of blood flow may cause sudden loss of consciousness followed by abnormal movements that mimic seizure. dysrhythmia is one of the important and critical reasons of such events that should be differentiated from seizure. case presentati...
متن کاملAbnormal fetal movements, micrognathia and pulmonary hypoplasia: a case report. Abnormal fetal movements
BACKGROUND Micrognathia is a facial malformation characterized by mandibular hypoplasia and a small, receding chin that fails to maintain the tongue in a forward position. We previously reported a system of prenatal screening that we developed to identify fetuses with compromised central nervous system function by observing fetal behavior. In this paper we report the case of a preterm infant wi...
متن کاملSleepiness and head movements.
Sleepiness in working life is critical and strongly associated to work related accidents. The relationship between sleepiness and head movements is poorly investigated. The pattern of head movements over time was investigated in a laboratory study with ten subjects either sleep-deprived or rested. Head movements were obtained by an inclinometer placed on the subject's forehead, and the recordin...
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ژورنال
عنوان ژورنال: Journal of Neurology, Neurosurgery & Psychiatry
سال: 1979
ISSN: 0022-3050
DOI: 10.1136/jnnp.42.8.705