EEG Frequency Evolution Quiz
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Questions and Answers

Which of the following best defines evolution in frequency in the context of EEG?

  • A change from one waveform morphology to another.
  • A change from one electrode location to another.
  • At least two consecutive changes in the same direction by at least 0.5 Hz. (correct)
  • A change in the amplitude of the waveform by at least 0.5 Hz.

    • In order for an EEG pattern to be classified as evolving in morphology, which of the following criteria must be met?

  • A shift in electrode placement in at least two 10-20 standard locations.
  • A change in waveform morphology twice in a sequential and novel manner. (correct)
  • A change in amplitude by at least 2 Hz in two consecutive steps.
  • A spread of waveform activity to contralateral regions of the brain.

    • What qualifies as an example of "evolution in frequency" in evolving EEG patterns?

  • A change from 2 to 2.5 to 3 Hz (correct)
  • A change from 3 Hz to 1.5 Hz
  • A change from 2 Hz to 2.5 Hz without further progression
  • A change from 2 to 2.5 to 2 Hz

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