IN YOUR OWN WORDS, how does experience affect neuron development and overall function (ex. speed of firing) of neurons throughout early development and throughout the rest of our lives?  
How would the lack of particular experiences and types of stimuli throughout critical periods of early development affect these neurons and the overall life of the individual involved?  
Further, how could practicing certain activities (whether physical, such as a sport, or mental, such as learning a language) affect the firing and overall responsiveness of neurons?
Finally, how could all of  this be applied to studying for a course in order to learn the needed material?