Semantic attributes are building blocks of meanings (e.g., valence indicates how pleasant an item is), and the intensity of semantic attributes (e.g., M valence ratings) is often found to impact memory. Our research further reveals that not only the intensity but also the variability in semantic attributes (e.g., valence rating SD) affect memory. Recently, I have also been examining the memory effects of contextual diversity (i.e., the number of distinct contexts where an item occurs) as opposed to the number of sheer item repetitions.
Chang, M., Jones, M. N. & Johns, B. T. (2023). Comparing word frequency, semantic diversity, and semantic distinctiveness in lexical organization. Journal of Experimental Psychology: General. [PDF]
Chang, M. & Brainerd, C. J. (2023). The recognition effects of attribute ambiguity. Psychonomic Bulletin & Review. [PDF]
Brainerd, C. J., Chang, M., Bialer, D. M., & Toglia, M. P. (2021). Semantic ambiguity and memory. Journal of Memory and Language, 121, 104286. [PDF]