title: Whorf hypothesis is supported in the right visual field but not the left.
abstract: The question of whether language affects perception has been debated largely on the basis of cross-language data, without considering the functional organization of the brain. The nature of this neural organization predicts that, if language affects perception, it should do so more in the right visual field than in the left visual field, an idea unexamined in the debate. Here, we find support for this proposal in lateralized color discrimination tasks. Reaction times to targets in the right visual field were faster when the target and distractor colors had different names; in contrast, reaction times to targets in the left visual field were not affected by the names of the target and distractor colors. Moreover, this pattern was disrupted when participants performed a secondary task that engaged verbal working memory but not a task making comparable demands on spatial working memory. It appears that people view the right (but not the left) half of their visual world through the lens of their native language, providing an unexpected resolution to the language-and-thought debate.
authors.affiliation: Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720, USA. mayfly@berkeley.edu
authors.forename: Aubrey L
authors.initials: AL
authors.lastname: Gilbert
authors.forename: Terry
authors.initials: T
authors.lastname: Regier
authors.forename: Paul
authors.initials: P
authors.lastname: Kay
authors.forename: Richard B
authors.initials: RB
authors.lastname: Ivry
mesh_terms: D000328:Adult; D003116:Color; D006801:Humans; D007802:Language; D008959:Models, Neurological; D011930:Reaction Time; D014794:Visual Fields / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*