[Source: Science Daily]

When we speak, we unconsciously pronounce some words more slowly than others, and sometimes we make brief pauses or throw in meaningless sounds like “uhm.” Such slow-down effects provide key evidence on how our brains process language. They point to difficulties when planning the utterance of a specific word.

To find out how such slow-down effects work, a team of researchers led by Frank Seifart from the University of Amsterdam and Prof. Balthasar Bickel from UZH analyzed thousands of recordings of spontaneous speech from linguistically and culturally diverse populations from around the world, including the Amazon rainforest, Siberia, the Himalayas, and the Kalahari desert, but also English and Dutch.

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