HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Letter string processing and visual short-term memory

Abstract : The present study investigated whether expertise with letter string processing influences visual short-term memory capacity. Specifically, we examined whether performance in a change-detection task would vary as a function of stimulus type (letters vs. symbols) and type of display (horizontal, vertical, and circular). Participants were asked to detect a one-character change in a briefly presented character array following a delay of 900 ms. Concurrent articulation was used to limit effects of rehearsal. Type of display significantly affected performance with letters, but not with symbols, with a selective increase in change-detection accuracy for horizontally presented letter arrays compared with vertical and circular arrays. These findings confirm the standard limits of storage in visual short-term memory, but critically reveal a selective advantage for letter arrays over symbol arrays when presented horizontally. Such an advantage is probably due to the utilization of a specialized encoding mechanism built up over years of reading experience.
Document type :
Journal articles
Complete list of metadata

Contributor : Stéphane Dufau Connect in order to contact the contributor
Submitted on : Friday, May 15, 2015 - 1:53:42 PM
Last modification on : Tuesday, October 19, 2021 - 10:58:51 PM




Maria Ktori, Jonathan Grainger, Stéphane Dufau. Letter string processing and visual short-term memory. Quarterly Journal of Experimental Psychology, Taylor & Francis (Routledge), 2012, 65 (3), pp.465--473. ⟨10.1080/17470218.2011.611889⟩. ⟨hal-01152182⟩



Record views