Study Reveals How Language Speed Affects Efficient Communication of Information

by Kathy Jones on  September 6, 2011 at 7:41 PM Research News   - G J E 4
There is considerable variation in the speed at which languages are spoken, but much less variation in how efficiently languages communicate the same information, a new study has found.
 Study Reveals How Language Speed Affects Efficient Communication of Information
Study Reveals How Language Speed Affects Efficient Communication of Information

The study, co-authored by Francois Pellegrino, Christophe Coupe, and Egidio Marsico, sheds new light on the ways in which languages ensure the efficient communication of information.

The study is based on 20 short texts (each consisting of five sentences) translated into seven languages (Mandarin Chinese, English, French, German, Japanese, Italian, and Spanish) and pronounced by about 60 native speakers.

"Languages do need more or less time to tell the same story - for instance in our study, the texts spoken in English are much shorter than their Japanese counterparts," Dr. Pellegrino said.

"Despite those variations, there is a tendency to regulate the information rate, as shown by a strong negative correlation between the syllabic rate and the information density," he said.

In other words, languages that are spoken faster (i.e., that have a higher syllabic rate) tend to pack less information into each individual syllable (i.e. have a lower information density).

"This result illustrates that several encoding strategies are possible. For instance, Spanish is characterized by a fast rate of low-information syllables, while Mandarin exhibits a slower syllabic rate with more informative syllables. In the end, their information rates are very similar (differing only by four percent)," Dr. Pellegrino noted.

"We discovered a strong relationship between the information density of the syllables and the complexity of their linguistic structure," Dr. Pellegrino concluded.

The study, 'A cross-linguistic perspective on speech information rate', will be published in the September 2011 issue of the scholarly journal Language.

Source: ANI

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