The following post is about AU1 – inner brow raiser, driven by the medial part of the frontalis muscle. It covers: анатомски варијација, заједнички грешке, и пружа чист референце. 

 

Шта је Иnner подизање обрва?

Унутрашњи подизач обрва, или AU1, је Систем за кодирање покрета лица (FACS) action unit (AU). Its function is to raise the medial brow/forehead area, and its action is triggered by the contraction of the medial region of чеони. It can difficult find clean references унутрашњи подизач обрва. When building FACS references, many sources fail to:

1. Find actors who can voluntarily trigger their medial frontalis without also contracting the lateral area of frontalis or corrugator supercilii. 
2. Правилно усмерити моделе to perform medial frontalis contraction.

In our everyday lives, most of us can effortlessly raise our inner brows without thinking twice; however, when commanded to, many people struggle to isolate this motion.

FACS референце и дезинформације

I recently (2020) critiqued a set of FACS shapes for a client and noticed his унутрашњи подизач обрва shape је имао неки коругатор (од споштач обрва) случајно помешано.

Client’s Inner Brow Blendshape + My Notes:

Додавање коругатора у унутрашњи подизач обрва је веома честа грешка. Ова заједничка особина делимично је последица чињенице да: Добре референце су тешко наћи!

Even my client – an established industry artist with a great portfolio and CV – unknowingly added corrugator features to his model, because he trusted a tainted reference. The reference he used was from a prominent anatomy and facial expression book: Анатомија израза лица. Many art students and professionals use this textbook. It is a great textbook, but some of its FACS shapes are inaccurate.

Reference used by client:

See the vertical and wavy lines in the center of the forehead in the images below? Those vertical lines are from a brow knitting muscle known corrugator supercilii.

To view some clean examples of medial brow raising, observe the GIFs below. Read about the primary and secondary effects of унутрашњи подизач обрва као и како њене карактеристике могу да варирају међу појединцима.

Чисти AU1 – Примери за подизање унутрашњег дела обрве

example i

example ii 

For more information види: Тајни живот унутрашњег дизача обрва.

For a full and structured FACS deep dive, see my online course, the: FACS интензивна припрема.