St Anton am Arlberg the Steissbachtal trail just above St. Anton. The groomed runs in the region cater to all levels; 43% are for beginners (blue), 41% for intermediate skiers (red) and 16% are for the more advanced (black). There are also of deep snow runs in the area. Expert terrain includes less-frequently groomed ski routes such as Schindlerkar and Mattun, and the backside of Valluga () down to Zürs, which is for experts only if accompanied by a guide. There are also a large number of off-piste routes in the area that experts can explore with the help of a guide. Other ski
Colour centre the recognition of shapes, motion, and colour. V1 has multiple areas that are colour-sensitive, which indicates that colour processing is not limited to one area. According to a paper by Dr Robert Shapley, V1 has an important role in colour perception. fMRI experimental results showed that V1 has two kinds of colour sensitive neurons: single-opponent and double-opponent cells. These cells are integral in the opponent process of interpreting colour signals. Single-opponent neurons respond to large areas of colour. This is advantageous for recognizing large colour scenes and atmospheres. In comparison, double opponent cells respond to patterns, textures, and colour boundaries.