What Is FACS? Facial Action Coding Explained

Описание: 00:00 – Re-recording to get Allan’s name right
00:12 – What FACS actually is: a system for describing facial movement
00:24 – Surface anatomy vs functional anatomy
00:44 – Where FACS comes from (anatomy, not mind-reading)

00:58 – Historical roots: Carl-Herman Hjortsjö and Man’s Face and Mimic Language
01:18 – Ekman, Hager, Friesen, and how FACS became formalised
01:39 – Why it’s considered the “gold standard”
01:48 – Its grounding in basic emotions theory

02:02 – Who this video is for (animators, researchers, clinicians, artists)
02:23 – Why I’m changing the structure of the FACS playlist
02:39 – What this series will cover: intro, AUs, then coding

03:02 – Warnings if you want to be a “body language expert”
03:12 – Be careful assigning meaning to facial movements
03:22 – Communication is multimodal, not face-only
03:50 – When signals don’t align, interpretation gets complicated

04:01 – Bias toward non-verbal cues when signals conflict
04:20 – Why YouTube face-reading content is risky
04:37 – My own shift away from strict basic emotions theory

05:01 – Facial movements are ambiguous and polysemous
05:12 – The only way to know meaning is often to ask
05:22 – Eliciting corrections vs asking direct questions

06:06 – Why one-to-one mappings (AU = emotion) are a trap
06:20 – Contemporary perspectives beyond the original manual
06:23 – Melinda Ozel and anatomy-focused updates to FACS

06:33 – Academic lineage within basic emotions theory
06:39 – Erica Rosenberg, Emotional Intelligence Academy, Ekman tradition
07:02 – Different camps, different interpretations

07:19 – Critical voices and alternative frameworks
07:24 – Lisa Feldman Barrett and constructionist views
07:31 – My own methodological position

07:37 – Recent work on quantitative uses of FACS
07:53 – Problems with turning human FACS codes into machine data
08:20 – Why I’m cautious about AI applications here

08:43 – If you want to be Cal Lightman, temper your expectations
08:51 – Over-interpreting FACS can make interaction worse
09:04 – Stay with ambiguity and subjectivity

09:12 – Why certainty is the real danger
09:21 – What FACS is good for, and what it isn’t
09:32 – Next video: going through the AUs
09:36 – Final video: coding together