For a particular cell in the visual system, the pattern of retinal stimulation that most effectively causes the cell to fire. For some cells, this pattern is defined simply in terms of a retinal location; for others, the most effective input has a particular shpae, color, or direction of motion. feature detectors.
Cancun in February. Cancun weather in February is pretty hot with temperatures of 25Â° and 25Â° degrees, might be good for outdoors activity. As it almost never rains in Cancun at February, it is good weather for hanging outside and exploring Cancun.
In September, Cancun has an average daily high temperature of 89 to 90 degrees Fahrenheit, and an average daily low temperature of 76 to 77 degrees Fahrenheit. The weather is slightly cooler than during the summer months and noticeably warmer than during the winter. September tends to be the rainiest month of the year in Cancun. Continue Reading.