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The aurofacial asymmetry is defined as the position of the face (mouth, nose and eyes) with respect to the mid plane of the axis through the ears. The asymmetry is expressed as an angle ( degrees ), i.e. by how many degrees facial landmarks (e.g. tip of the nose) or pairs of landmarks (e.g. inner corners of the eyes ( endocanthions are rotated ...
One prediction of the theory was the aurofacial asymmetry, which was then found empirically, [5] albeit by one of the authors of the original theory. Phenomena the theory can explain include: Contralateral organization of the brain; Left-sided orientation of the heart; Asymmetric position of the gastrointestinal tract, the liver, and the pancreas
English: The aurofacial asymmetry is the asymmetry of the eyes, nose and mouth with respect to the median plane between the ears, and was predicted by the Axial Twist Theory. (A) The average face from N = 200 (Blanz & Vetter, 1999; Troje & Bülthoff, 1996) with the tragus of the ears aligned with the horizontal axis of the im- age plane.
Humans show a systematic aurofacial asymmetry, meaning that the face (eyes, nose and mouth) are displaced to the left with respect to the midplane between the ears. In young children this asymmetry is on average 4 degrees and is easily recognized (See also: Axial Twist theory). [14]
Chirality is also seen in the study of facial asymmetry and is known as aurofacial asymmetry. [35] Schema of the development of the axial twist in vertebrates. According to the Axial Twist theory, vertebrate animals develop into a left-handed chirality. Due to this, the brain is turned around and the heart and bowels are turned by 90°. [36]
It separates the face (with eyes, nose and mouth) from the ears and the rest of the body. It predicts the aurofacial asymmetry (the face sits a bit to the left with respect to the ears), but also why in skoliosis the trunk (with the spine) faces asymmetrically to the right.
Bilateral features in the face and body, such as left and right eyes, ears, lips, wrists and thighs, often show some extent of fluctuating asymmetry. Some individuals show greater asymmetry than others. Fluctuating asymmetry (FA), is a form of biological asymmetry, along with anti-symmetry and direction asymmetry. Fluctuating asymmetry refers ...
Asymmetry is the absence of, or a violation of, symmetry (the property of an object being invariant to a transformation, such as reflection). [1] Symmetry is an important property of both physical and abstract systems and it may be displayed in precise terms or in more aesthetic terms. [ 2 ]