The languages of the world differ in their use of intrinsic, relative, and absolute reference frames to describe spatial relationships, but factors guiding reference frame choices are not yet well understood. This paper addresses the role of animacy and linguistic construction in reference frame choices in English and Spanish. During each trial of two experiments, adult participants saw a spatial scene along with a sentence describing the location of an object (locatum) relative to another object (relatum) that was animate or human(-like) to varying degrees. The scene presented two possible referents for the locatum, and participants decided which referent the description referred to, revealing which reference frame they used to interpret the sentence. Results showed that reference frame choices differed systematically between languages. In English, the non-possessive construction (X is to the left of Y) was consistently associated with the relative reference frame, and the possessive construction (X is on Y’s left) was associated with the intrinsic reference frame. In Spanish, the intrinsic interpretation was dominant throughout, except for the non-possessive construction with relata that were not anthropomorphic, animate, or human. We discuss the results with respect to the languages’ syntactic repertory, and the notion of inalienable possession.

The world’s languages draw on different reference frames to encode spatial relationships between people, objects or places. We address how subtle differences in reference frame preferences across Spanish and English affect Spanish–English bilinguals’ interpretations of spatial descriptions involving the terms left and right. Bilinguals saw an entity (‘object’; e.g., a vase or a human) with a circle on either side, along with a description of the location of a ball relative to the object (e.g., The ball is to the right of the vase or The ball is on the vase’s right). Their task was to decide which circle indicated the ball’s location. Results showed that syntax and object type contributed differently to bilinguals’ responses: Effects of syntax patterned with Spanish preferences, whereas effects of object type patterned with English preferences. English language exposure subtly affected bilinguals’ response choices. Results are discussed with respect to experience-based theories of language processing.