The basic procedure involves measuring how quickly people classify stimuli as words or nonwords.
[4][5] Subjects are presented, either visually or auditorily, with a mixture of words and logatomes or pseudowords (nonsense strings that respect the phonotactic rules of a language, like trud in English).
The analysis is based on the reaction times (and, secondarily, the error rates) for the various conditions for which the words (or the pseudowords) differ.
[8] Examples of summation priming include: Examples of direct or coarse priming include: An fMRI study found that the left hemisphere was dominant in processing the metaphorical or idiomatic interpretation of idioms whereas processing of an idiom’s literal interpretation was associated with increased activity in the right hemisphere.
[9] Other LDT studies have found that the right hemisphere is unable to recognize abstract or ambiguous nouns, verbs, or adverbs.