Language may shape human thought

Language may shape human thought (New Scientist: 19-Aug-04)
Language may shape human thought, suggests a counting study in a Brazilian tribe whose language does not define numbers above two. Hunter-gatherers from the Pirahã tribe, whose language only contains words for the numbers one and two, were unable to reliably tell the difference between four objects placed in a row and five in the same configuration, revealed the study. Experts agree that the startling result provides the strongest support yet for the controversial hypothesis that the language available to humans defines our thoughts. So-called "linguistic determinism" was first proposed in 1950 but has been hotly debated ever since.