electroencephalograph
Scalp electrode device
An electroencephalograph is a medical instrument that records electrical activity in the brain.
Electrodes placed on the scalp detect the brain's faint electrical impulses, which the machine amplifies and displays as wave patterns.
The resulting record is an electroencephalogram, commonly abbreviated EEG—a term that covers both the test and its output: The EEG showed abnormal activity.
Electrical contact points
- amplifierSignal-strengthening electronic device
- capCovering for top
- scalpSkin covering skull
- gelWobbly semi-solid substance
impedance · montage · channel · lead · sensor · transducer · filter · display
Captured audio or video
- placementPutting somewhere specific
- preparationArranging things in advance
- technicianSkilled practical worker
- neurophysiologistStudies nervous system function
ambulatory · continuous · routine · activation · hyperventilation · awake · drowsy · sedation
Brain disorder causing seizures
- seizureForcible taking or convulsion
- tonic-clonicSeizure with rigidity and convulsions
- encephalopathyDisease impairing brain function
- comaUnwakeable unconsciousness
dementia · narcolepsy · concussion · stroke · delirium · abnormality · spike · postictal
electrodes
Electrical contact points
gel · impedance · montage · channel · lead · sensor · transducer · filter · display · monitor
recording
Captured audio or video
- placementPutting somewhere specific
- preparationArranging things in advance
- technicianSkilled practical worker
neurophysiologist · ambulatory · continuous · routine · activation · hyperventilation · awake · drowsy · sedation · duration
epilepsy
Brain disorder causing seizures
- seizureForcible taking or convulsion
- tonic-clonicSeizure with rigidity and convulsions
- encephalopathyDisease impairing brain function
coma · dementia · narcolepsy · concussion · stroke · delirium · abnormality · spike · postictal · differential
alpha
First Greek letter
theta · oscillation · synchronization · frequency · amplitude · rhythm · waveform · hertz · cycles · coherence
cortex
Organ's external tissue
parietal · occipital · lobes · hemisphere · scalp · neurons · synaptic · brainstem · thalamus · cerebellum
- long wordssupercalifragilisticexpialidocious, antidisestablishmentarianism, incomprehensibilities, counterrevolutionary, internationalization
- neuroimagingbrain MRI, functional MRI, brain scan, fMRI, voxel
- measuring instrumentsruler, tape measure, measuring tape, caliper, calipers
- test equipmentmultimeter, oscilloscope, multimeters, oscilloscopes, voltmeter
electroencephalographneurostimulator
Implanted nerve-signaling device
electroencephalographelectrocardiograph
Device recording cardiac electrical impulses
ECG machine · EKG machine · electromyograph · cardiac monitor · heart monitor