cortical potential


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Noun1.cortical potential - (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph
neurophysiology - the branch of neuroscience that studies the physiology of the nervous system
alpha rhythm, alpha wave - the normal brainwave in the electroencephalogram of a person who is awake but relaxed; occurs with a frequency of 8-12 hertz
beta rhythm, beta wave - the normal brainwave in the encephalogram of a person who is awake and alert; occurs with a frequency between 12 and 30 hertz
bioelectricity - electric phenomena in animals or plants
delta rhythm, delta wave - the normal brainwave in the encephalogram of a person in deep dreamless sleep; occurs with high voltage and low frequency (1 to 4 hertz)
theta rhythm, theta wave - the normal brainwave in the encephalogram of a person who is awake but relaxed and drowsy; occurs with low frequency and low amplitude
References in periodicals archive ?
One of the challenges in recording the VEP is that the response is a cortical potential and is, therefore, immersed amongst the intrinsic EEG activity of the cortex and is not easily distinguished.
Infralow frequency training is not the only technique that relies on the slow cortical potential for training.
Another protocol is based on training slow cortical potentials [Slow Cortical Potential Training] (SCP), in order to regulate the phasic cortical activity rather than the tonic.
(2) The CNV is a surface-negative slow cortical potential elicited between the warning and the imperative stimuli when a response to the imperative stimuli is required.
When the electrodes detect the brain waves, they transmit them over wires to an electroencephalogram, which identifies a single type of wave (a slow cortical potential).
The ten children with migraines were taught to self-regulate their brains' slow cortical potential, resulting in an improvemeant in their migraine symptoms by up to 55%.
Drechsler, "Slow cortical potential neurofeedback in attention deficit hyperactivity disorder: is there neurophysiological evidence for specific effects?," Journal of Neural Transmission, vol.
Medlennye negativnye potentsiali golovnogo mozga cheloveka v period fiksatsii i podgotovki sakkad na zritelnye stimuli [Slow negative cortical potential during the eye fixation and preparing of visual-triggering saccades in man].
Effects of acoustic changes can also be observed in consonant-vowel syllable (CVS)-evoked cortical potentials. For example, N1 latency [8] and the presence or absence of two N1 responses corresponding to the onset of the vowel part of a CVS is affected by the voice onset time (VOT) [9].
Maruyama, "Whole-hand water flow stimulation increases motor cortical excitability: a study of transcranial magnetic stimulation and movement-related cortical potentials," Journal of Neurophysiology, vol.
The detection of movement intentions from EEG, specifically movement-related cortical potentials (MRCPs), has been thoroughly investigated and several techniques exist to detect executed and imaginary movements from healthy subjects and attempted movements from patients suffering from spinal cord injury or stroke [4-9].