The following post is about AU1 – inner brow raiser, driven by the medial part of the frontalis muscle. It covers: التشريحية التباين, شائع الأخطاءويوفر نظيفة المراجع. 

 

ما هورافع الحواجب؟

رافع الحاجب الداخلي أو AU1، هو نظام ترميز حركة الوجه (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 فرونتاليس. It can difficult find clean references رافع الحاجب الداخلي. 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. نماذج مباشرة بشكل صحيح 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.

مراجع FACS والمعلومات الخاطئة

I recently (2020) critiqued a set of FACS shapes for a client and noticed his رافع الحاجب الداخلي كان للشكل بعض المموج (من أخفض الحاجب) عن طريق الخطأ.

Client’s Inner Brow Blendshape + My Notes:

إضافة المموج إلى رافع الحاجب الداخلي خطأ شائع جدًا. ويرجع هذا الشيوع جزئياً إلى حقيقة أن: من الصعب العثور على مراجع جيدة!

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: تشريح تعابير الوجه. 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 رافع الحاجب الداخلي وكذلك كيف يمكن أن تختلف سماته من فرد لآخر.

نظيف AU1 - أمثلة على رافع الحاجبين الداخلي

example i

example ii 

For more information انظر: الحياة السرية لرافع الحواجب الداخلي.

For a full and structured FACS deep dive, see my online course, the: دورة تدريبية في علوم وتكنولوجيا الأغذية والمشروبات.