According to a study in the journal Memory, reading aloud works by creating a “production effect” which cements information in your memory. Meanwhile, hearing words said in your own voice personalizes the references and enhances recollection, according to psychology professor Colin MacLeod and researchers from the University of Waterloo in Ontario, Canada. Quartz reports: The findings are based on a study of 95 students (75 of whom returned for a second session) at the University of Waterloo. The students were tested on ability to recall written information inputted in four different ways — reading silently, hearing someone else read, listening to a recording of oneself reading, and reading aloud in real time. They were tested on recollection of short, four-to-six letter words on a of 160 terms. The results show that reading information aloud to oneself led to the best recall. Oral production is effective because it has two distinctive components, a motor or speech act and a personal auditory input, the researchers explain. “[The] results suggest that production is memorable in part because it includes a distinctive, self-referential component. This may well underlie why rehearsal is so valuable in learning and remembering,” the study concludes. “We do it ourselves, and we do it in our own voice. When it comes time to recover the information, we use this distinctive component to help us to remember.”


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