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- https://socialsci.libretexts.org/Bookshelves/Psychology/Biological_Psychology/Applied_Event-Related_Potential_Data_Analysis_(Luck)/05%3A_Referencing_and_Other_Channel_Operations/5.07%3A_What_is_the_Best_Reference_SiteFor example, most language ERP studies use the average of the mastoids as the reference, and if you use the average reference, you might think you’ve discovered a new “P400” component at the F7 electr...For example, most language ERP studies use the average of the mastoids as the reference, and if you use the average reference, you might think you’ve discovered a new “P400” component at the F7 electrode site. If you have a good reason to use an atypical reference in a given study, you should also show what the data look like with the typical reference (e.g., by providing the waveforms with the typical reference in online supplementary materials).
- https://socialsci.libretexts.org/Bookshelves/Psychology/Biological_Psychology/Applied_Event-Related_Potential_Data_Analysis_(Luck)/07%3A_Inspecting_the_EEG_and_Interpolating_Bad_Channels/7.01%3A_Data_for_This_ChapterThe data we’ll be using for the exercises in this chapter can be found in the Chapter_7 folder in the master folder: https://doi.org/10.18115/D50056.
- https://socialsci.libretexts.org/Bookshelves/Psychology/Biological_Psychology/Applied_Event-Related_Potential_Data_Analysis_(Luck)/04%3A_Filtering_the_EEG_and_ERPs/4.13%3A_Matlab_Script_for_this_ChapterI haven’t provided a script for this chapter, because scripts in previous chapters have shown how to do filtering from a script. Instead, I provided the Excel file for creating artificial waveforms (i...I haven’t provided a script for this chapter, because scripts in previous chapters have shown how to do filtering from a script. Instead, I provided the Excel file for creating artificial waveforms (in the folder with the data for this chapter).
- https://socialsci.libretexts.org/Bookshelves/Psychology/Biological_Psychology/Applied_Event-Related_Potential_Data_Analysis_(Luck)/04%3A_Filtering_the_EEG_and_ERPs/4.11%3A_Practical_AdviceIf you want to use a high-pass cutoff of greater than 0.1 Hz or a low-pass cutoff of less than 20 Hz, I strongly recommend that you create artificial ERP waveforms that resemble your data and pass the...If you want to use a high-pass cutoff of greater than 0.1 Hz or a low-pass cutoff of less than 20 Hz, I strongly recommend that you create artificial ERP waveforms that resemble your data and pass them through the filter (even if you’re filtering the continuous or epoched EEG with your real data).
- https://socialsci.libretexts.org/Bookshelves/Psychology/Biological_Psychology/Applied_Event-Related_Potential_Data_Analysis_(Luck)/06%3A_Assigning_Events_to_Bins_Averaging_Baseline_Correction_and_Assessing_Data_Quality/6.05%3A_Exercise_-_A_Basic_Assignment_of_Events_to_BinsWe want to read the EventList from the current dataset, and we want to write the updated version with the bin information to the current dataset. That is, we guaranteed that there were 8 instances of ...We want to read the EventList from the current dataset, and we want to write the updated version with the bin information to the current dataset. That is, we guaranteed that there were 8 instances of the letter A when A was the target, but the other 32 stimuli in this block were sampled completely at random from the other 4 letters.
- https://socialsci.libretexts.org/Bookshelves/Psychology/Biological_Psychology/Applied_Event-Related_Potential_Data_Analysis_(Luck)/03%3A_Processing_Multiple_Participants_in_the_ERP_CORE_N400_Experiment/3.04%3A_Exercise-_Bad_DataIf you look at the aSME data quality metric (EEGLAB > ERPLAB > Data Quality options > Show Data Quality measures in a table), you’ll find an aSME value of 0 for every channel at every time point for B...If you look at the aSME data quality metric (EEGLAB > ERPLAB > Data Quality options > Show Data Quality measures in a table), you’ll find an aSME value of 0 for every channel at every time point for Bin 3 (related targets), and a value of NaN for Bin 4 (unrelated targets). Look at the number of event codes, the number of accepted and rejected trials, the continuous EEG, and the epochs that were marked by the artifact detection process.
- https://socialsci.libretexts.org/Bookshelves/Psychology/Biological_Psychology/Applied_Event-Related_Potential_Data_Analysis_(Luck)/11%3A_EEGLAB_and_ERPLAB_Scripting/11.10%3A_Exercise-_LoopsIn Script3.m, the body of the loop is a single line consisting of the display(subject) command, which just prints the value of the variable named subject that we specified on the for line. However, th...In Script3.m, the body of the loop is a single line consisting of the display(subject) command, which just prints the value of the variable named subject that we specified on the for line. However, the fastest route to a goal is not always the straightest: If you focus too much on the immediate goal of getting the script to work, you may actually slow your progress toward the final goal of getting the paper submitted.
- https://socialsci.libretexts.org/Bookshelves/Psychology/Biological_Psychology/Applied_Event-Related_Potential_Data_Analysis_(Luck)/01%3A_First_StepsThis chapter is designed to provide key background knowledge you’ll need for the rest of the book. We’ll begin by describing the goals of this book and the background knowledge you should have. Then w...This chapter is designed to provide key background knowledge you’ll need for the rest of the book. We’ll begin by describing the goals of this book and the background knowledge you should have. Then we’ll show you how to install the software and download some data, followed by a few exercises so that you can learn the basics of the EEGLAB and ERPLAB software packages that will be used throughout the book.
- https://socialsci.libretexts.org/Bookshelves/Psychology/Biological_Psychology/Applied_Event-Related_Potential_Data_Analysis_(Luck)/05%3A_Referencing_and_Other_Channel_Operations/5.03%3A_Exercise-_Working_with_the_Artificial_DataTake a careful look at the equations in the spreadsheet and make sure that you understand how the absolute voltage is related to the source waveform and the weights, how the single-ended voltage is re...Take a careful look at the equations in the spreadsheet and make sure that you understand how the absolute voltage is related to the source waveform and the weights, how the single-ended voltage is related to the absolute voltage, and how the referenced voltage is related to the single-ended voltage.
- https://socialsci.libretexts.org/Bookshelves/Psychology/Biological_Psychology/Applied_Event-Related_Potential_Data_Analysis_(Luck)/08%3A_Artifact_Detection_and_Rejection/8.07%3A_An_Iterative_Approach_to_Setting_ParametersNote that most current algorithms assess the overall noise level of the data rather than assessing the data quality for the specific amplitude or latency measure that you will be using as the main dep...Note that most current algorithms assess the overall noise level of the data rather than assessing the data quality for the specific amplitude or latency measure that you will be using as the main dependent variable to test your scientific hypotheses (which is what the SME does).
- https://socialsci.libretexts.org/Bookshelves/Psychology/Biological_Psychology/Applied_Event-Related_Potential_Data_Analysis_(Luck)/03%3A_Processing_Multiple_Participants_in_the_ERP_CORE_N400_Experiment/3.10%3A_Exercise-_ERP_Channel_OperationsIt’s just like the previous equation, except that we use channel numbers instead of channel names, and we add label Cluster to the end of the equation to indicate the name of the new channel. However,...It’s just like the previous equation, except that we use channel numbers instead of channel names, and we add label Cluster to the end of the equation to indicate the name of the new channel. However, if you look at the ERPsets menu, you’ll see that the name of the current ERPset has been changed from Grand_N400 to Grand_N400_chop to indicate that Channel Operations (abbreviated as “chop”) has been performed.
