
06604886
j
2016e.00160
Pollack, Courtney
Leon Guerrero, Sibylla
Star, Jon R.
Exploring mental representations for literal symbols using priming and comparison distance effects.
ZDM, Math. Educ. 48, No. 3, 291303 (2016).
2016
Springer, Berlin/Heidelberg
EN
C30
H20
C80
literal symbols
priming
distance effects
mental representations
doi:10.1007/s1185801507459
Summary: Higherlevel mathematics requires a connection between literal symbols (e.g., `$x$') and their mental representations. The current study probes the nature of mental representations for literal symbols using both the priming distance effect, in which ease of comparing a target number to a fixed standard is a function of primetarget distance, and the comparison distance effect, in which ease of comparing two numbers depends on the distance between them. Can literal symbols that have been assigned magnitude access mental representations of quantity to produce distance effects? Forty participants completed number comparison tasks involving Arabic numerals and literal symbols, a training task, and a working memory task. While both distance effects were present with Arabic numerals, there was no evidence of either with literal symbols. Results suggest that literal symbols may not share the same mental representations of magnitude as other number formats or may access them differently. Additional research is needed to understand mental representations utilized in higherlevel mathematics (e.g., algebra), which includes both Arabic numerals and literal symbols.