The lexical decision task (LDT) is a procedure used in many psychology and psycholinguistics experiments. The basic procedure involves measuring how quickly people classify stimuli as words or non-words; the participant needs to decide about whether combinations of letters are words or non-words. As an example, “GIRL” is a real word, the response should be “yes, this is a real word”, but the letters “XLFFE” would have the correct response of “No, this is not a real word”.

In this lab, subjects will use the iWorx data recording software and event markers to respond “Yes” or “No” when presented a series of stimuli representing words and non-words. Both timing and error rate will be determined to see how the subjects respond best to these stimuli..

Download the Lab (.pdf)