Generic masculine role nouns interfere with the neural processing of female referents: evidence from the P600

The masculine form in German is used to refer to male people specifically and to people of any gender generically. While behavioural research has demonstrated that this dual function leads to male-biased responses, the neural underpinnings of this bias are still underexplored. In the present EEG study, we investigated how the presentation of generically intended masculine role nouns (vs. role nouns in the feminine–masculine and masculine–feminine pair form) affected the neural processing of references to men and women. Referring to women after generic masculine role nouns induced difficulties during perceptual processing in the P200 range and, crucially, also during high-level reference resolution, as indicated by an enhanced P600 amplitude over posterior sites. In contrast, no significant processing conflicts were observed after the pair form. These findings illuminate the neural consequences of grammatical gender and support the notion that the generic masculine does not represent different genders equally well.