1. Aiken, Leona S., and Stephen G. West (1991), Multiple Regression: Testing and Interpreting Interactions, Thousand Oaks, CA: Sage.
2. Boroditsky, Lera (2000), “Metaphoric Structuring: Understanding Time through Spatial Metaphors,” Cognition, 75 (April), 1–28.
3. ——— (2001), “Does Language Shape Thought? Mandarin and English Speakers' Conceptions of Time,” Cognitive Psychology, 43 (August), 1–22.
4. ——— (2011), “How Languages Construct Time,” in Space, Time and Number in the Brain: Searching for the Foundations of Mathematical Thought, ed. Stanislas Dehaene and Elizabeth Brannon, London: Elsevier, 333–41.
5. Boroditsky, Lera, Orly Fuhrman, and Kelly McCormick (2011), “Do English and Mandarin Speakers Think about Time Differently?” Cognition, 118 (January), 123–29.