Three letter rule poets such as John Milton alternated between short and long forms for function words, depending on whether they occurred on or off the meter. For instance: While many function words have more than two letters ("and", "she", "were", "therefore", etc.), the exceptions to the rule are rather two-letter content words. Only a few of these occur commonly in most texts: the words "go" (which also has a functional usage in the idiom "going to do something"), "ox" and, especially in American texts, "ax". English grammar is relatively flexible about converting words of one class to another, allowing verbal uses such
Transposed letter effect letter effect as humans. The purpose of the study was to find evidence to suggest that baboons use orthographic processing when reading. Previous research has considered transposed letter effects as strong evidence for orthographic processing (Grainger, 2008). Baboons were asked to classify strings of letters as either words or non-words by selecting certain shapes (for example, a circle for a word and a square for a non-word). The baboons were shown words they had previously learned and non-words. The non-words were created by using four-letter words, previously learned by the baboons, and either transposing the two middle letters or replacing