That’s a good idea, but let’s keep thinking! Can we prevent our initial ideas from being forgotten as a consequence of thinking of new ideas?
Four experiments examined participants’ ability to remember their own ideas in a modified Alternative Uses Task. Participants were asked to generate uses for objects, and on half of the trials participants were then asked to think of more uses. Memory for the initial uses they generated was then tested via a cued-recall task. Results demonstrated that participants forgot their initial uses as a consequence of thinking of new uses (referred to as the thinking-induced forgetting effect), and this effect persisted even when participants chose the subset of uses they thought were the most creative and to be remembered. The only scenario in which uses were protected from forgetting was when they were required to use their uses as hints for generating more ideas. Together, these findings demonstrate that one’s own ideas are susceptible to forgetting when additional ideas must be generated, indicating that thinking is a modifier of memory despite one’s motivation to preserve their ideas.
KeywordsRetrieval Practice Creative Idea Final Recall Thinking Condition Additional Thinking
We thank O. Altamirano, S. Chea, J. Grinkevich, P. Gunalp, M. Hickman, S. Katawetheesakun, S. Kotzman, P. Small, S. Shrikanth, K. Ramakrishnan, and K. Williams for their assistance with data collection and data coding, as well as N. Davidenko for his comments on earlier versions of the manuscript.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
- Bartlett, F. C. (1932). Remembering: An experimental and social study. Cambridge: Cambridge University.Google Scholar
- Duncker, K., & Lees, L. S. (1945). On problem-solving. Psychological Monographs, 58(5), i.Google Scholar
- Jeffreys, H. (1961). Theory of probability.Google Scholar
- Luchins, A. S., & Luchins, E. H. (1959). Rigidity of behavior: A variational approach to the effect of Einstellung.Google Scholar
- Slamecka, N., & Graf, P. (1978). The generation effect: delineation of a phenomenon. Journal of Experimental Psychology: Human Learning and Memory, 14, 592–604.Google Scholar
- Smith, S. M. (1995). Getting into and out of mental ruts: A theory of fixation, incubation, and insight. In R. J. Sternberg & J. E. Davidson (Eds.), The nature of insight (pp. 121–149). Cambridge: MIT Press.Google Scholar
- Smith, S. M. (2008). Invisible assumptions and the unintentional use of knowledge and experiences in creative cognition. Lewis & Clark Law Review, 12, 509–525.Google Scholar
- Smith, S. M., & Blankenship, S. E. (1991). Incubation and the persistence of fixation in problem solving. The American Journal of Psychology, 61–87.Google Scholar
- Smith, S. M., & Ward, T. B. (2012). Cognition and the creation of ideas. In K. J. Holyoak & R. G. Morrison (Eds.), The Oxford handbook of thinking and reasoning (pp. 456–474). New York: Oxford University Press.Google Scholar
- Storm, B. C., Angello, G., Buchli, D. R., Koppel, R. H., Little, J. L., & Nestojko, J. F. (2015). A review of retrieval-induced forgetting in the contexts of learning, eye-witness memory, social cognition, autobiographical memory, and creative cognition. The Psychology of Learning and Motivation, 141–194.Google Scholar
- Storm, B. C., & Patel, T. N. (2014). Forgetting as a consequence and enabler of creative thinking. Journal of Experimental Psychology: Learning, Memory, and Cognition. Google Scholar
- Ward, T. B., Smith, S. M., & Finke, R. A. (1999). Creative cognition. In R. J. Sternberg (Ed.), Handbook of creativity (pp. 189–212). New York: Cambridge University Press.Google Scholar