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.
Spring Weather in Cancun. Spring is mid-way through the dry season in Cancun. Temperatures rise up to average highs of 32Â°C (90Â°F) in April, falling to 23Â°C (73Â°F) at night. The difference between the daytime and night time temperatures is fairly large and only increases as the months develop.