The impact of mind wandering on the recall of central ideas

Mind wandering occurs when a reader's thoughts are unrelated to the text's ideas. We examined the relation between mind wandering and readers' memory for text. More specifically, we assessed whether mind wandering inhibits the reader's development of the situation model and thus their ability to identify and recall the text's most central ideas. Undergraduate participants (M = 18.92 years; SD = 1.32) read and recalled three expository passages. Participants responded to intermittent probes to report mind wandering frequency. We examined how mind wandering impacted the readers' situation model, indicated by the proportion of central and peripheral ideas recalled. Using path analysis models, we found that mind wandering negatively predicted the recall of central, but not peripheral, ideas. The effect of mind wandering on the recall of central ideas was not explained by working memory span (measured by WAIS-IV digit span backward and letter-number sequencing), word reading skill (measured by Letter-Word Identification and Word Attack), or general reading comprehension skill (measured by the Gates-MacGinitie Reading Test). These results indicate that mind wandering hinders the recognition and recall of a text's most central ideas and suggest that mind wandering impacts the development of a coherent situation model. This effect seems to be independent of working memory, word reading, and general reading comprehension skill. Future studies should test approaches to decrease mind wandering among adult readers.