Brain Signatures of New (Pseudo-) Words: Visual Repetition in Associative and Non-Associative Contexts
The contribution of the two different training contexts to online, gradual lexical acquisition (ERPs) elicited by new, word-like stimuli. Pseudowords were repeatedly preceded by a picture of a well-known object (semantic-associative training context), or by a hash mark (non-associative training context). The two training styles revealed differential effects of repetition in both behavioural and ERPs data. Repetition of pseudowords not associated with any stimulus gradually enhanced the late positive component (LPC) as well as speeded the lexical categorization of these stimuli, suggesting the formation of episodic memory traces. However, the repetition under the semantic-associative context of the recovery in N400 component and categorization latencies.