Schladming "red" and "black" slopes for competitive skiers, and many "blue" slopes for beginners, but generally the Planai is an intermediate to expert mountain. The Hochwurzen is the other mountain in Schladming. It has three main red runs off the four-man chair lift and a sledge run. This mountain is better suited to more experienced boarders and skiers. Also, a 15-man cable car can take groups of up to five to the top. The surrounding mountains are popular with climbers and hikers and country lovers. In the summer, downhill toboggan runs and an outdoor swimming complex are open. The UCI Mountainbike
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.