Expecting Or Not A Break In The Absence Of A Break

In trials with breaks from Fortin and Masse's (2000) experiment 3, production of a 2.6-sec duration was interrupted for 1, 2, or 3 sec after 600, 1100, 1600, and 2100 msec. There were no breaks in 20% of the trials. Therefore, a break was presumably expected until its occurrence in trials with breaks, and for the most part of target duration in trials with no breaks. The expectation assumption of the time-sharing hypothesis leads to a prediction that produced intervals would be positively related to prebreak duration in trials with breaks, with longest intervals being produced in trials with no breaks. The data clearly supported the prediction: overall, productions were positively related to prebreak duration, and longest productions were observed in trials with no breaks.

The most conclusive support for the attentional time-sharing interpretation was obtained when expectancy was manipulated in trials with no breaks (Fortin and

0 0

Post a comment