cortical rhythm

См. также в других словарях:

• cortical rhythm — noun : the apparently inherent rhythmic electrical oscillations taking place in the brain in the absence of evident external stimulation …   Useful english dictionary

• Cortical visual impairment — (CVI) is a form of visual impairment that is caused by a brain problem rather than an eye problem. (The latter is sometimes termed ocular visual impairment when discussed in contrast to cortical visual impairment.) Some people have both CVI and a …   Wikipedia

• cortical potential — noun (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph (Freq. 1) • Syn: ↑brainwave, ↑brain wave • Topics: ↑neurophysiology • Hypernyms: ↑ …   Useful english dictionary

• delta rhythm — noun the normal brainwave in the encephalogram of a person in deep dreamless sleep; occurs with high voltage and low frequency (1 to 4 hertz) • Syn: ↑delta wave • Hypernyms: ↑brainwave, ↑brain wave, ↑cortical potential * * * ˈdelta rhythm 7… …   Useful english dictionary

• alpha rhythm — noun the normal brainwave in the electroencephalogram of a person who is awake but relaxed; occurs with a frequency of 8 12 hertz • Syn: ↑alpha wave • Hypernyms: ↑brainwave, ↑brain wave, ↑cortical potential …   Useful english dictionary

• beta rhythm — noun the normal brainwave in the encephalogram of a person who is awake and alert; occurs with a frequency between 12 and 30 hertz • Syn: ↑beta wave • Hypernyms: ↑brainwave, ↑brain wave, ↑cortical potential …   Useful english dictionary

• theta rhythm — noun the normal brainwave in the encephalogram of a person who is awake but relaxed and drowsy; occurs with low frequency and low amplitude • Syn: ↑theta wave • Hypernyms: ↑brainwave, ↑brain wave, ↑cortical potential * * * noun or …   Useful english dictionary

• nervous system, human — ▪ anatomy Introduction       system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… …   Universalium

• Neural oscillation — is rhythmic or repetitive neural activity in the central nervous system. Neural tissue can generate oscillatory activity in many ways, driven either by mechanisms localized within individual neurons or by interactions between neurons. In… …   Wikipedia

• Hippocampus — For other uses, see Hippocampus (disambiguation). Brain: Hippocampus The hippocampus is located in the medial temporal lobe of the brain. In this lateral view of the human brain, the frontal lobe is at le …   Wikipedia

• Dream — For other uses, see Dream (disambiguation). The Knight s Dream , 1655, by Antonio de Pereda Dreams are successions of images, ideas, emotions, and sensations that occur involuntarily in the mind during certain stages of sleep …   Wikipedia