Port Austin Light it. Restoration efforts continue. Decking has been covered with galvanized metal shingles, and painted in the bright red that is historically accurate. Railings were affixed to the access ladder, and safety chains edging the deck were replaced. Installed also were a new brick chimney and 18 new windows. In 1990, PARLA's license to renovate the structure was extended through 2020. Current restoration continues by the Port Austin Reef Light Association. The light is not open for tours. It is a long and difficult trip to the light, which is always hindered by the reef, and often by the fog. However,
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.