آیا ادراک کلمه در زبان دوم آسیب پذیر تر از زبان مادری یک نفر است؟ شواهد از پتانسیل های مغز در یک کار دوگانه یک ؟؟ یک ؟؟

We assessed the effect of additional tasks on language perception in second-language and native speakers. The N400 component of the event-related potential was recorded to spoken nouns that had to be judged for synonymity with a preceding word, while additional choice responses were required to visual stimuli. In both participant groups N400 was delayed as a function of temporal overlap with the additional task. In second-language speakers there was a global delay of N400 independent of additional task load and a decrease of accuracy at highest overlap. These findings are interpreted within a single channel account of language perception.