What info do you need to calculate sensitivity? - ✔✔ Deflection (mm) and Voltage (uV)
Normal alpha in an adult should NOT be seen in the... -
... [Show More] ✔✔ Frontal head region
What disease is caused by a proteinaceous particle or prion? - ✔✔ Creutzfeldt-Jakob disease
Syringomyelia is... - ✔✔ An abnormal cavity or cyst in the spinal cord
Spinocerebellar degeneration - ✔✔ Friedreich's Ataxia
Without dietetic treatment, this hereditary disease may cause mental retardation and infantile spasms. - ✔✔ Phenylketonuria
Central vertex electrode is... - ✔✔ Cz
What EEG pattern is considered a good prognostic sign in a comatose patient? - ✔✔ Electrode inactivity
Slow waves of youth attenuate with... - ✔✔ Eye opening
______________________________________ is characterized by multiple seizure types that are difficult to control, especially atonic seizures and atypical seizures, in addition to generalized convulsions, and an abnormal EEG with generalized 2-5Hz slow spike-wave discharges. - ✔✔ Lennox-Gastaut syndrome
In a chain linked bipolar montage, what is the most valuable localizing feature? - ✔✔ Phase reversal
The dance like movements of head and extremities may be exhibited in a patient with which hereditary degenerative disease? - ✔✔ Huntington's chorea
What condition is characterized by nightly rigidity and tremors? - ✔✔ Parkinson's disease
Guidelines for recording digital EEG are written by: - ✔✔ The American Clinical Neurophysiology (ACNS)
An area of a brain injury that occurs on the opposite side of the head is called: - ✔✔ Contra-coup
The ability of the EEG instrument to output the voltage difference between two inputs to a single channel is known as? - ✔✔ Differential amplification
What is an abnormal cortical response to photic stimulation? - ✔✔ Photo-paroxysmal discharges
Congenital anomalies of the hindbrain with caudal displacement of pons, medulla, and cerebellar vermis is called: - ✔✔ Arnold-Chiari malformation
The desirable characteristic of a differential amplifier in which like signals are cancelled is called: - ✔✔ Common Mode Rejection (CMR)
A normal waking and sleeping adult EEG would NOT include: - ✔✔ Delta range activity during alert stages
A spike is printed out on paper and measures 16mm peak to peak the sensitivity is 7uV/mm and a calibration of 50uV causes a deflection of 7.1mm. What is the voltage of the spike? - ✔✔ 112uV
At a sensitivity of 3uV/mm, how much voltage is represented by a 7mm deflection? - ✔✔ 21uV
______________________________________ is a genetic epilepsy syndrome whose gene has been mapped to chromosome 6 and becomes evident in normal teenagers with early morning myoclonic jerks and generalized tonic-clonic seizures. - ✔✔ Juvenile Myoclonic Epilepsy (JME)
Lambda differs from POSTS in that lambda is seen during... - ✔✔ Eye opening
A small fluctuating output by the EEG instrument even when there is no input signal and not associated with electrical line voltage from the outlet and other electrical devices is called: - ✔✔ Noise
Photic driving ___________________ - ✔✔ May or may not be present in a normal EEG recording
The basic unit for measuring current flow is - ✔✔ Ampere
The basic unit of resistance is - ✔✔ Ohm
What is not a valid expression of Ohm's law? In this equations E (electromotive force) is the same as V (voltage). - ✔✔ R = E I or (R=VI)
What is not a unit for measuring alternating frequencies? - ✔✔ Volts
What describes the action of a capacitor? - ✔✔ Stores energy
A circuit that allows some frequencies to pass through it, while others are blocked is a - ✔✔ Filter
A combination of electronic components designed to increase the power, voltage or current of a signal is a - ✔✔ Amplifier
A small fluctuating output recorded by the EEG instrument even when there is no input signal is called - ✔✔ Noise
The eeg amplifier is designed so that when input 1 is more negative than input 2, the deflection will be - ✔✔ Upward
Common mode rejection is - ✔✔ The characteristic of an amplifier that rejects external interference
What is the most attenuated by a low frequency filter of 1 Hz? - ✔✔ 0.1 Hz
Time constant is defined as the time required - ✔✔ For the deflection to fall to 37% of the peak deflection [Show Less]