electroencephalography
Scalp electrode monitoring
Electroencephalography is the technique of recording electrical activity in the brain using electrodes placed on the scalp.
The resulting record, an electroencephalogram (EEG), displays brain waves as wavy lines that doctors interpret to diagnose seizures, sleep disorders, and other neurological conditions.
The electroencephalography showed abnormal activity in the temporal lobe.
Electrical contact points
- amplifiersDevices that increase signal
- sensorsDevices that detect input
- headbandForehead-worn fabric strip
- montageAssembled sequence of images
leads · reference electrode · impedance · cables · digital recorder · filters · channels
Signal-transmitting brain cells
- synapsesNeuron-to-neuron transmission points
- cortexOrgan's external tissue
- brainwavesElectrical signals from neurons
- cerebrumBrain's largest division
brainstem · neural networks · cognitive function · consciousness · arousal · attention · memory · perception
Brain disorder causing seizures
- seizuresInvoluntary convulsions or takings
- sleep disordersConditions impairing rest
- brain tumorAbnormal growth in head
- encephalitisInflammatory brain condition
dementia · coma · stroke · brain death · concussion · cognitive impairment · memory loss · migraines
Brain activity self-training technique
- brain-computer interfaceSystem connecting mind to machine
- sleep studiesMedical tests during rest
- biofeedbackTraining via physiological monitoring
First Greek letter
- betaGreek alphabet's second letter
- gammaGreek alphabet's third
- deltaSymbol denoting variation
- thetaEighth Hellenic letter
mu · amplitude · frequency · hertz · oscillation · synchronization · rhythm · spike
Captured audio or video
- monitoringOngoing observation of something
- signal processingMathematical manipulation of waveforms
- technologistApplied science practitioner
- hyperventilationAbnormally rapid respiration
sleep deprivation · ambulatory · continuous monitoring · bedside · outpatient · inpatient
electrodes
Electrical contact points
- amplifiersDevices that increase signal
- sensorsDevices that detect input
- headbandForehead-worn fabric strip
montage · leads · reference electrode · impedance · cables · digital recorder · filters · channels
neurons
Signal-transmitting brain cells
- synapsesNeuron-to-neuron transmission points
- cortexOrgan's external tissue
- brainwavesElectrical signals from neurons
cerebrum · brainstem · neural networks · cognitive function · consciousness · arousal · attention · memory · perception · brain mapping
epilepsy
Brain disorder causing seizures
- seizuresInvoluntary convulsions or takings
- sleep disordersConditions impairing rest
- brain tumorAbnormal growth in head
encephalitis · dementia · coma · stroke · brain death · concussion · cognitive impairment · memory loss · migraines · syncope
neurofeedback
Brain activity self-training technique
- brain-computer interfaceSystem connecting mind to machine
- sleep studiesMedical tests during rest
- biofeedbackTraining via physiological monitoring
alpha
First Greek letter
theta · mu · amplitude · frequency · hertz · oscillation · synchronization · rhythm · spike · periodicity
recording
Captured audio or video
- monitoringOngoing observation of something
- signal processingMathematical manipulation of waveforms
- technologistApplied science practitioner
hyperventilation · sleep deprivation · ambulatory · continuous monitoring · bedside · outpatient · inpatient
electroencephalographyfunctional MRI
Brain activity imaging technique
fMRI · PET scan · magnetic resonance imaging · MRI · SPECT