<< Click to Display Table of Contents >> Navigation:  BEST-PRACTICE Examples > Coding Facial Expressions > FACS - One AU per Event (Multiple Passes)

IMPORTANT: Facial Action Coding is a complex routine that requires extra FACS training from a professional in that area.
Our examples will NOT make you a FACS professional. They only show how you can use INTERACT for Facial Action Coding.

In this setup, we presume that you want to log a separate Event for each change per Action Unit.

To keep the number of AU's to watch simultaneously limited, this setup assumes that you make 7 passes through the video. This is how the AU's are split over the passes:

oPass 1 for coding the AU's 1, 2, 4, 9

oPass 2 for coding the AU's 5, 6, 7

oPass 3 for coding the AU's 9, 10, 11, 38, 39

oPass 4 for coding the AU's 12, 13, 14, 15, 19, 37

oPass 5 for coding the AU's 18, 19, 22, 23, 24, 28, 29, 30, 31, 32

oPass 6 for coding the AU's 16, 17, 20, 21

oPass 7 for coding the AU's 25, 26, 27 43, 45

For each Event per AU, also the intensity and the Laterality can be logged. In this example the available levels are:

Intensity Levels

oa

ob

oc

od

oe

Laterality Levels

oRight

oLeft

oSymmetric

oAsymmetric

oTop

oBottom

Additionally, this sample setup allows you to log the peak frame as it occurs, to mark where the AU reaches its highest intensity.

In order to get this all done, the AU's to watch are split over 7 different files, each file representing a separate pass through the video.

IMPORTANT: You need to manually switch to the fitting code definition file per pass (simply open the file you need before you click Log new events again).

You can code all passes within the same data file and DataSet. Only Events stored within the same DataSet can be compared with analysis routines like the Contingency Analysis and the Co-occurrence Filter.

IMPORTANT: For all  setups, the Coding Mode Lexical is required!