Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision Both sides next revision
tutorial:natmeg:dataset [2018/10/21 15:06]
42.49.180.224 [Description of the experimental data]
tutorial:natmeg:dataset [2017/09/12 14:52] (current)
147.188.254.234 [Cued motor preparation]
Line 3: Line 3:
 For the EEG-MEG workshop we recorded a dataset of a single subject to allow you to work through all the different steps involved in EEG-MEG analysis: from event related averaging to frequency analysis, source modelling and statistics. For the EEG-MEG workshop we recorded a dataset of a single subject to allow you to work through all the different steps involved in EEG-MEG analysis: from event related averaging to frequency analysis, source modelling and statistics.
  
-===== Description of the experimental data =====+==== The oddball paradigm ​==== 
 + 
 +The experiment that the subject performed is a slight adaptation of the classical oddball experiment. Using the oddball paradigm one can study the well-known EEG component called the mismatch-negativity (MMN). The classical auditory oddball experiment involves the presentation of a continuous series of identical tones at a relatively slow rate, say between one every two seconds to two every second. Every so often, say one out of ten, the tone is slightly different in pitch, duration or loudness. 
 +In our version, an oddball occurs after every 3 to 7 standard tones. The interval between each tone is jittered between 700 to 900 ms. 
 + 
 +{{tutorial:​natmeg_temp:​paradigm.png?​600|"​The experimental oddball paradigm used for the tutorial}}
  
-For the EEG-MEG workshop we recorded a dataset of a single subject to allow you to work through all the different steps involved in EEG-MEG analysis: from event related averaging to frequency analysis, source modelling and statistics. 
 ==== Mismatch negativity ==== ==== Mismatch negativity ====
  
Line 47: Line 51:
   * Electrocardiogram (ECG) was recorded as a bipolar recording from the collarbones.   * Electrocardiogram (ECG) was recorded as a bipolar recording from the collarbones.
   * Electromyography of the lower arm flexors of the left(1) and right(2) arm were recorded.   * Electromyography of the lower arm flexors of the left(1) and right(2) arm were recorded.
 +
 +
 +
 +
 +
 +
 +
 +
 + 
 +