Morphology

Question 1

monomorphic

Answer 1

distinct EEG activity composed of one dominant frequency

Question 2

polymorphic

Answer 2

EEG activity composed of multiple frequencies that combine to form a complex waveform

Question 3

sinusoidal

Answer 3

EEG activity resembles sine waves

Question 4

transient

Answer 4

isolated wave or pattern that is distinctly different from the background

Question 5

spikes

Answer 5

a potential with less than 70 milliseconds duration

Question 6

polyspikes

Answer 6

sequence of two or more spikes

Question 7

sharp waves

Answer 7

a potential with more than 70 milliseconds duration, but less than 200 milliseconds duration

Question 8

complex

Answer 8

a sequence of two or more waves with distinct form or patter different from the background activity

Question 9

biphasic

Answer 9

a wave or complex having two distinct components

Question 10

triphasic

Answer 10

a wave or complex having three distinct components

Question 11

epileptiform

Answer 11

distinctive waves or complexes that resemble those recorded from patients with epileptic disorders