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.
The weather in Cancun is humid from May through August. The  temperature from early August until the end of August typically  averages about 92 degrees for highs and about 7 â¦ 7 degrees for low  temperatures. Answered. In Countries, States, and Cities.