In EEG/ PSG data management, increasing the sampling rate primarily increases:

In EEG/ PSG data management, increasing the sampling rate primarily increases:

• A. The number of samples per second
• B. Duration of recording
• C. The number of channels
• D. Bit depth

Answer: (A)

Increasing the sampling rate means more samples are recorded each second, so the data have higher temporal resolution. This lets you capture faster waveform changes and higher-frequency activity, within the limits set by the Nyquist theorem. The duration of the recording remains the same for a given start and end time; you’re just collecting more data points in that interval. The number of channels is determined by how many electrodes are used, and bit depth determines amplitude resolution per sample, not how often samples are taken. So the primary effect is more samples per second.

Increasing the sampling rate means more samples are recorded each second, so the data have higher temporal resolution. This lets you capture faster waveform changes and higher-frequency activity, within the limits set by the Nyquist theorem. The duration of the recording remains the same for a given start and end time; you’re just collecting more data points in that interval. The number of channels is determined by how many electrodes are used, and bit depth determines amplitude resolution per sample, not how often samples are taken. So the primary effect is more samples per second.