- alpha rhythm
- 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. 2011.
alpha rhythm
Look at other dictionaries:
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
