EEG
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| show | The term previously used to describe periodic lateralized epileptiform discharges also known as PLEDs. (Chatrian 1961)
🗑
|
||||
| show | Periodic epileptiform discharges that occur in a focal or lateralized manner over one hemisphere.
🗑
|
||||
| PRFD | show 🗑
|
||||
| show | Alternating ipsilateral periodic lateralized epileptiform discharges. Two separate foci of periodic activity with alternating amplitudes ad morphology are present over the same area or hemisphere.
🗑
|
||||
| show | Pseudoperiodic lateralized paroxysmal discharges. PLEDs in which the repetition rate is not precisely regular.
🗑
|
||||
| BIPLEDs | show 🗑
|
||||
| show | Periodic sinusoid paroxysmal activity. Bursts of sinusoid activity around 7-9 Hz, usually followed by a slow wave, lasting less than 500 ms, with a period less than 2 s. Mainly over the posterior head regions, associated with confusional state.
🗑
|
||||
| Chronic PLEDs | show 🗑
|
||||
| PEDIM | show 🗑
|
||||
| Poly PLEDs | show 🗑
|
||||
| show | PLEDs with rhythmical discharges that are more likely to be associated with clinical seizures.
🗑
|
||||
| PLEDs Proper | show 🗑
|
||||
| show | PLEDs that occur sequentially between consecutive seizures.
🗑
|
||||
| Tri-Focal PLEDs | show 🗑
|
||||
| Tri-PLEDs | show 🗑
|
||||
| IpsiIPs/Ipsi PLEDs | show 🗑
|
||||
| Multi-Focal PLEDs | show 🗑
|
||||
| show | The process of amplification, recording, and analysis of the electrical potentials of the brain,
🗑
|
||||
| Electrocorticography | show 🗑
|
||||
| Lead | show 🗑
|
||||
| show | The instrument used to amplify and record the electrical potentials of the brain.
🗑
|
||||
| show | The EEG recording itself.
🗑
|
||||
| show | An umbrella term that refers to all types of neurophysiologic testing and monitoring.
🗑
|
||||
| Sagittal | show 🗑
|
||||
| show | One set of 2 electrodes, placed into Grid 1 and Grid 2 of one channel of the electroencephalograph.
🗑
|
||||
| Horizontal Dipole | show 🗑
|
||||
| show | Refers to the montage which consists of chains of electrodes going from anterior to posterior, left over right, in temporal chains and parasagittal chains across the head.
🗑
|
||||
| show | An organized combination of electrode derivations recording at the same time on the electroencephalograph.
🗑
|
||||
| Dipole | show 🗑
|
||||
| show | Refers to a montage that is referential.
🗑
|
||||
| Vertex | show 🗑
|
||||
| Dura Mater | show 🗑
|
||||
| Arachnoid Mater | show 🗑
|
||||
| show | The innermost layer of the meninges.
🗑
|
||||
| Transverse | show 🗑
|
||||
| show | Used to describe paroxysmal patterns such as epileptiform patterns and seizure patterns.
🗑
|
||||
| Meninges | show 🗑
|
||||
| show | In EEG, the 2 planes running front to back on either side of the midline.
🗑
|
||||
| show | In EEG, one line of activity derived from 2 electrodes input into a differential amplifier.
🗑
|
||||
| Gyrus | show 🗑
|
||||
| show | Plural of gyrus.
🗑
|
||||
| Cortex | show 🗑
|
||||
| Central Sulcus aka Rolandic Fissure | show 🗑
|
||||
| show | Term indicating a location not on the head.
🗑
|
||||
| Meningitis | show 🗑
|
||||
| Sulcus | show 🗑
|
||||
| Sulci | show 🗑
|
||||
| show | A pictorial representation of the anatomical divisions of the primary motor cortex and the primary somatosensory cortex.
🗑
|
||||
| Medial | show 🗑
|
||||
| show | Away from the midline of the body.
🗑
|
||||
| show | Toward a reference point (extremity).
🗑
|
||||
| Distal | show 🗑
|
||||
| show | Lower or below.
🗑
|
||||
| show | Upper or above.
🗑
|
||||
| show | Head.
🗑
|
||||
| show | Tail, tail end.
🗑
|
||||
| Anterior | show 🗑
|
||||
| Posterior | show 🗑
|
||||
| Dorsal | show 🗑
|
||||
| Ventral | show 🗑
|
||||
| Dermatomes | show 🗑
|
||||
| Hertz | show 🗑
|
||||
| show | The frequency band in EEG containing faster frequencies above 30 Hz.
🗑
|
||||
| Beta | show 🗑
|
||||
| Alpha | show 🗑
|
||||
| Theta | show 🗑
|
||||
| show | The frequency band in EEG containing frequencies less than 4 Hz.
🗑
|
||||
| Cycles per Second | show 🗑
|
||||
| Cycles | show 🗑
|
||||
| Dipole | show 🗑
|
||||
| show | Defined as cycles per second.
🗑
|
||||
| show | Literally means having one pole. In EEG it refers to a montage that is referential. The term is misleading because both electrodes in a referential montage contribute electrical potentials to the differential amplifier and are actually active.
🗑
|
||||
| Bilateral | show 🗑
|
||||
| Lateralized | show 🗑
|
||||
| Horizontal Dipole | show 🗑
|
||||
| Bipolar | show 🗑
|
||||
| Background Activity | show 🗑
|
||||
| Dominant Frequency | show 🗑
|
||||
| Diffuse | show 🗑
|
||||
| show | Uncommon unilateral failure of the alpha to attenuate with eye opening. It may occur in lesions of the temporal or parietal lobes.
🗑
|
||||
| show | Restricted or remaining in one hemisphere.
🗑
|
||||
| show | Frequency that is below the fundamental frequency, a frequency that divides evenly into the fundamental frequency.
🗑
|
||||
| show | A wave or frequency that is an integral multiple of a given fundamental frequency. Seen in photic driving responses and sometimes in electrical noise.
🗑
|
||||
| show | A transient increase in alpha frequency immediately following eye closure.
🗑
|
||||
| show | Technically means generating electrical power by converting light energy. In EEG it refers to an artifact caused by the photic stimulator in the frontal leads. The artifact is eliminated by covering the electrode with something to shield the light.
🗑
|
||||
| Topography | show 🗑
|
||||
| Focal | show 🗑
|
||||
| show | On the same side. In an Ipsilateral Ear Reference Montage, it refers ti all the electrodes in Grid 1 to the ear of mastoid on the same side of the head.
🗑
|
||||
| show | Relating to the opposite side of the head or body.
🗑
|
||||
| show | Occurring simultaneously throughout the recording electrodes. A discharge can be primarily generalized or secondarily generalized.
🗑
|
||||
| Multifocal | show 🗑
|
||||
| show | Situated in or arising from the temporal lobe.
🗑
|
||||
| show | Situated in or arising from the area of the brain around the central sulcus.
🗑
|
||||
| show | Situated in or arising from the front.
🗑
|
||||
| Occipital | show 🗑
|
||||
| Parietal | show 🗑
|
||||
| show | A limited region of the scalp, cerebral cortex or depth electrode recording side displaying a given EEG activity, either normal or abnormal.
🗑
|
||||
| Spread | show 🗑
|
||||
| show | Areas sharing common function. The same area on the opposite side or the same area having the same relative position in another organism.
🗑
|
||||
| show | The exact location of the brain from which an underling epileptiform discharge originates.
🗑
|
||||
| show | A change in the appearance of a rhythm on one side.
🗑
|
||||
| Symmetry or Symmetrical | show 🗑
|
||||
| show | Multiple frequencies together creating complex waveforms.
🗑
|
||||
| show | Having one dominant pattern of rhythm.
🗑
|
||||
| show | The form or shape of EEG waves and patterns.
🗑
|
||||
| show | A waveform having 2 phases or 2 deflections on each side of the baseline.
🗑
|
||||
| show | A transient, usually negative in polarity but can be positive, with a duration of greater than 70 msec but less than 200 msec. Voltage is variable but usually is high. Morphology is sharply pointed.
🗑
|
||||
| Spike | show 🗑
|
||||
| show | Having a curved shape as in an "S" or since wave.
🗑
|
||||
| show | Waveforms often associated with epilepsy such as spikes, sharp waves, or spike and slow wave.
🗑
|
||||
| Triphasic | show 🗑
|
||||
| show | An event causing sudden loss of amplitude with abrupt return to the previous pattern.
🗑
|
||||
| Organization | show 🗑
|
||||
| Complex | show 🗑
|
||||
| Suppression | show 🗑
|
||||
| show |
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
akesselman
Popular EEG sets