alpha rhythm

См. также в других словарях:

• alpha rhythm — n ALPHA WAVE * * * a uniform rhythm of waves in the normal electroencephalogram, showing an average frequency of 10 per second; see alpha waves under wave. Called also Berger r. and alpha activity …   Medical dictionary

• alpha rhythm — a pattern of slow brain waves (alpha waves) in normal persons at rest with closed eyes, thought by some to be associated with an alert but daydreaming mind. [1935 40; earlier alpha waves, trans. of G Alphawellen, term used by their discoverer,… …   Universalium

• alpha rhythm — al′pha rhythm n. phl a pattern of slow brain waves(al′pha waves )in normal persons at rest with closed eyes, thought by some to be associated with an alert but daydreaming mind • Etymology: 1935–40 …   From formal English to slang

• alpha rhythm — noun see alpha wave …   New Collegiate Dictionary

• alpha rhythm — noun Physiology the normal electrical activity of the brain when conscious and relaxed, consisting of oscillations (alpha waves) with a frequency of 8 to 13 hertz …   English new terms 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

• alpha waves — alpha waves, = alpha rhythm. (Cf. ↑alpha rhythm) …   Useful english dictionary

• alpha wave — n. any of the electrical waves from the parietal and occipital regions of the brain, having frequencies from 8 to 13 hertz: a sign of relaxation, since they indicate a lack of sensory stimulation in a conscious person: also alpha rhythm * * * …   Universalium

• alpha wave — n. any of the electrical waves from the parietal and occipital regions of the brain, having frequencies from 8 to 13 hertz: a sign of relaxation, since they indicate a lack of sensory stimulation in a conscious person: also alpha rhythm …   English World dictionary

• alpha wave — 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 rhythm • Hypernyms: ↑brainwave, ↑brain wave, ↑cortical potential * * * noun or …   Useful english dictionary

• alpha wave — noun Date: 1936 an electrical rhythm of the brain with a frequency of approximately 8 to 13 cycles per second that is often associated with a state of wakeful relaxation called also alpha, alpha rhythm …   New Collegiate Dictionary