How do members of a grad school admission committee make sure they are reading all the applicants' essays with the same level of mental freshness? I am currently in the process of applying for graduate studies in electrical engineering. A big part of my statement of objectives is dedicated to give a feeling of how I became interested in a specific area of research. I am worried that that part of my essay is going to make my essay be looked at as just another emotionally overdone statement, while I have been told by people who reviewed it that it is quite inspiring. How do members of a graduate school admission committee make sure that they have not built some kind of tolerance to personal stories as they go through a few hundred applications?
A big part of my statement of objectives is dedicated to give a feeling of how I became interested in a specific area of research. I am worried that that part of my essay is going to make my essay be looked at as just another emotionally overdone statement, while I have been told my people who reviewed it that it is quite inspiring. 


Your statement of purpose should be a professional statement and overview of the research you want to do in graduate school. It should be forward looking. 

It should not be emotional or inspiring. And for most applications, not be done in narrative form ("when I was in sixth grade, I knew I wanted to be an engineer when my mom fixed the carburetor in our '58 Chevy."). Every paragraph you spend on the past is a paragraph you could be using to strengthen the articulation of work you wish to do in the future at this graduate school. 

Leave the narrative history and inspirational material in your personal history or diversity portion of the application. 

Finally, at my department we ensure all applications are read by multiple faculty. This helps protect against individual variability. 

Caveat: I'm a social scientist but I imagine the physical sciences are even less likely to respond to appeals of emotionality.