Hidden Brain
Hidden Brain

Watch Your Mouth

If you're bilingual or multilingual, you may have noticed that different languages make you stretch in different ways. This week, we revisit a favorite 2018 conversation with cognitive scientist Lera Boroditsky. She studies how the structure of the languages we speak can change the way we see t

Featured Speakers

Shankar Vedantam HostLera Boroditsky GuestJohn McWhorter Guest

Topics Discussed

Episode Summary

Executive Summary: The episode explores how language shapes perception, memory, and culture through cognitive scientist Lera Boroditsky and linguist John McWhorter. It examines linguistic differences in direction, time, gender, agency, and vocabulary change, arguing that languages are living systems that both reflect and influence how people think, remember, and relate to the world.

Main Topics: Language as a lens on reality (Priority: 5/5): Boroditsky explains that languages are not just communication tools but cognitive frameworks that guide how speakers perceive and categorize the world. Direction, navigation, and spatial thinking (Priority: 5/5): Examples from Aboriginal Australian languages show how using cardinal directions instead of left/right can reshape orientation skills and everyday communication. Time organized through space (Priority: 4/5): The episode describes experiments showing that speakers of different languages arrange temporal sequences according to their writing direction or spatial conventions. Grammatical gender and cognition (Priority: 5/5): Boroditsky shows that grammatical gender influences associations, memory, art, and even how speakers personify abstract concepts. Language and agency in events (Priority: 4/5): Different languages encode accidents and intentional actions differently, affecting what speakers notice and remember about events. Languages change constantly (Priority: 5/5): McWhorter argues that word meanings and grammar naturally evolve over time, and that prescriptive complaints often misunderstand language as static. Language, prejudice, and social judgment (Priority: 4/5): McWhorter suggests that objections to 'incorrect' language can become a socially acceptable outlet for class-based or status-based disdain.

Key Arguments: Languages shape thought: speakers internalize the categories and distinctions their language makes salient, and these can influence perception and memory. Spatial language can train cognition: communities that use cardinal directions rather than left/right develop strong orientation abilities because their language and culture require it. Time is mentally organized using spatial systems: writing direction and cultural conventions affect how people lay out sequences and stories. Grammatical gender is psychologically real: assigning nouns masculine or feminine can alter how people describe, imagine, and artistically depict objects and abstract concepts. Language effects can be large, not trivial: Boroditsky argues some differences are as large as 100% performance differences in navigation tasks. Bilinguals do not fully switch off one language when using another; both systems remain active, with the current language becoming more salient. Languages without number words make exact counting difficult, showing that small linguistic features can shape access to broader domains like algebra. All living languages change: McWhorter argues this is normal, inevitable, and the source of linguistic diversity; written standards create an illusion of permanence. Complaint about 'bad grammar' can mask social bias: people may use language rules to express status judgments that are less acceptable in other domains.

Data Points: Navigation performance difference: 100% - Boroditsky says five-year-olds in cardinal-direction languages can point southeast without hesitation, unlike many adults in English-speaking cultures. Art association prediction rate: 78% - Analysis of ArtStore images found the gender of personifications could be predicted 78% of the time from the grammatical gender of the noun in the artist’s language. Number of written languages: about 200 (or as conservative as 100) - McWhorter notes only a small fraction of the world’s ~6,800 languages are written in any real way. World languages estimate: 6,800 - Used by McWhorter to emphasize the vast majority of languages are spoken rather than written. Children’s gender-identification advantage: about 1 year sooner - Finnish/English/Hebrew studies found Hebrew-speaking children identified their gender about a year earlier than Finnish-speaking children. Language diversity loss analogy: 1 bomb dropped on the Louvre - Ken Hale’s quote used to describe the magnitude of cultural loss when a language dies.

Pivotal Quotes: "The categorization that language provides to you becomes real, becomes psychologically real." — Lera Boroditsky: On how language shapes cognition and makes abstract distinctions psychologically meaningful. "Every time a language dies, it's the equivalent of a bomb being dropped on the Louvre." — Ken Hale (quoted by Lera Boroditsky): On the cultural and intellectual loss caused by language extinction. "Language is a parade." — John McWhorter: On why language should be understood as dynamic, moving, and alive rather than fixed.

Implications: Listeners should expect language to influence thought more than intuition suggests, and to change more than prescriptive norms allow. The episode supports preserving linguistic diversity and treating language variation as natural, not defective.

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About Hidden Brain

Why do I feel stuck? How can I become more creative? What can I do to improve my relationships? If you’ve ever asked yourself these questions, you’re not alone. On Hidden Brain, we help you understand your own mind — and the minds of the people around you. (We're routinely rated the #1 science podcast in the United States.) Hosted by veteran science journalist Shankar Vedantam.

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