Recent research on the relationship between grammatical aspect and motion event cognition has shown that speakers of nonaspect languages (e.g., German, Swedish) attend to event endpoints more than speakers of aspect languages (e.g., English, Spanish). In this study, we took a perceptual learning approach to the Whorfian hypothesis, training native English speakers to categorize events either in an English-like way (same-language bias) or in a Swedish-like way (other-language bias), with and without verbal interference in English. Results showed that successful learning occurred in both language conditions. However, verbal interference disrupted learning only in the condition where the perceptual dimension to be learned was also salient in the participant's native language. This revealed selective language influence depending on the associative or dissociative relationship between the linguistic features occurring in the observer's native language and the perceptual features of the stimuli presented to them.