Invalidating childhood environments, where caregivers dismiss or reject emotional experiences, are strongly linked to emotional dysregulation and long-term psychopathology. Neurophysiological evidence suggests that adverse family climates may manifest in EEG markers of affective integration, such as parietal positivities reflecting sustained emotional processing. This preliminary study examined whether perceived invalidation, measured through self-reports of family environment, modulates the integration of semantic and affective information. Participants (N = 9) completed a word–face priming task in which emotional words preceded congruent or incongruent facial expressions. EEG was recorded with a 30-electrode system, and centro-parietal amplitudes in the 300–500 ms window were analyzed. Correlational analyses revealed that higher maternal invalidation was associated with reduced positivity during positive congruent trials (r = –.723, p = .028), with overall negative perceptions of maternal environment showing a similar association (r = –.734, p = .024). These findings suggest that invalidating family climates may alter the neural dynamics of emotional congruence, particularly in positive contexts, contributing to difficulties in emotion regulation and interpersonal functioning. By linking self-reported family environment with neurophysiological indices, this study underscores the importance of early relational experiences in shaping affective processing.