Time Frequency Maps

Plot time-frequency maps.

Inputs

• One of Epochs and Evoked

Output Time-Frequency Map

Use

1. freq - The frequencies in Hz.
2. n_cycles - The number of cycles globally or for each frequency. If n_cycles is ‘scale’ n_cycle = freqs / 2.
3. baseline a - Start of the time interval to apply baseline correction.
4. baseline b - End of the time interval to apply baseline correction.
5. mode - Mode to perform baseline correction. Possibilities:
   • mean - subtracting the mean of baseline values
   • ratio - dividing by the mean of baseline values
   • logratio - dividing by the mean of baseline values and taking the log
   • percent - subtracting the mean of baseline values followed by dividing by the mean of baseline values
   • zscore - subtracting the mean of baseline values and dividing by the standard deviation of baseline values
   • zlogratio - dividing by the mean of baseline values, taking the log, and dividing by the standard deviation of log baseline values
6. channel - Channel which TF should be ploted
7. Plot TF of channel - If this check box is checked, the Time-Frequency of channel will be displayed after pressing Show plot.
8. Plot topography - If this check box is checked, the topography will be displayed after pressing Show plot.
9. Save button - Saves changes
10. Show plot button - Button for showing plots.

Example

Where Figure 1 is TF of channel and Figure 2 is topography.

More information about plot TF of channel and plot topography. Information about container for Time-Frequency data here.