Very interesting, Bethree. Proof, the study cited said:
quote:
Here we analyze trends in the past century of mood words in books, using Google’s Ngram database. Google’s Ngram database represents a 4% digitally–scanned sample of several centuries of books, for a total of 5,195,769 volumes [2]. The corpus contains texts in different languages, and, for English, a further distinctions is made between American English and British English (according to the country of publication, i.e. United States versus Great Britain). Additionally, a subset of English texts collects only fiction books. Titles of books present in the corpus are not available because of copyright reasons [2]. The corpus gives information on how many times, in a given year, an 1-gram or an n-gram is used, where an 1-gram is a string of characters uninterrupted by space(i.e. a word, but also numbers, typos, etc.) and an n-gram is a sequence of n 1-grams.
So, titles are not available.
I am thinking it's a choice of words and not the actual emotional state.