Using a foreign language reduces mental imagery; this partially explains why using foreign languages changes moral choices

Using a foreign language reduces mental imagery. Sayuri Hayakawa, Boaz Keysar. Cognition, Volume 173, April 2018, Pages 8–15. https://doi.org/10.1016/j.cognition.2017.12.010

Highlights

•    Using a foreign language reduces vividness of mental imagery.
•    This reduction in vividness affects both subjective experience and objective performance on mental imagery tasks.
•    The effect of language may vary across different modalities.
•    The reduction in mental imagery partially explains why using foreign languages changes moral choices.

Abstract: Mental imagery plays a significant role in guiding how we feel, think, and even behave. These mental simulations are often guided by language, making it important to understand what aspects of language contribute to imagery vividness and consequently to the way we think. Here, we focus on the native-ness of language and present evidence that using a foreign language leads to less vivid mental imagery than using a native tongue. In Experiment 1, participants using a foreign language reported less vivid imagery of sensory experiences such as sight and touch than those using their native tongue. Experiment 2 provided an objective behavioral measure, showing that muted imagery reduced accuracy when judging the similarity of shapes of imagined objects. Lastly, Experiment 3 demonstrated that this reduction in mental imagery partly accounted for the previously observed foreign language effects in moral choice. Together, the findings suggest that our mental images change when using a foreign tongue, leading to downstream consequences for how we make decisions.

Keywords: Bilingualism; Mental imagery; Foreign language; Morality; Decision making

Check also Are jokes funnier in one’s native language? Ayşe Ayçiçeği-Dinn, Simge Şişman-Bal, Catherine L Caldwell-Harris. International Journal of Humor Research, http://www.bipartisanalliance.com/2017/12/when-proficiency-levels-are-only.html

Also: Thinking More or Feeling Less? Explaining the Foreign-Language Effect on Moral Judgment. Sayuri Hayakawa et al. Psychological Science, http://www.bipartisanalliance.com/2017/08/thinking-more-or-feeling-less.html