Which of the following represents the duration of a sharp wave?

The duration of a sharp wave is typically recognized as being within the range of 70-200 milliseconds. This waveform is characterized by its fast rise and distinct peak, distinguishing it from other EEG waveforms such as spikes, which tend to have a shorter duration.

In the context of EEG and neurophysiological studies, sharp waves are often seen during sleep stages or in specific pathological conditions. The specified duration indicates a waveform that has clinical relevance, particularly in the identification of abnormal brain activity.

Understanding the typical duration of sharp waves is crucial for interpreting EEG recordings accurately and diagnosing various neurological conditions. The other ranges provided do not align with the established definitions of sharp wave durations, making them less applicable in the context of this question.