Native language experience shapes pre-attentive foreign tone processing and guides rapid memory trace build-up: An...

Area of Science:

• Psycholinguistics
• Neuroscience of Language
• Second Language Acquisition

Background:

• Native language (L1) significantly shapes the perception and processing of foreign languages (L2).
• Understanding how L1 influences the initial neural processing of L2 tonal features is crucial for L2 acquisition research.

Purpose of the Study:

• To investigate how L1 experience affects the early neural processing of foreign (L2) tonal words.
• To determine if learners can rapidly form neural memory traces for novel L2 tones.
• To examine the role of L1-L2 tonal similarity in modulating these processes.

Main Methods:

• Event-related potentials (ERPs) were recorded during two word acquisition sessions.
• Learners with tonal (Swedish) and nontonal (German) L1s were compared.
• Tones varied in similarity to Swedish tones (fall vs. high, low, rise).

Main Results:

• A rapid, pre-attentive memory trace for tone emerged at ~50 ms in ERPs, but only with high L1-L2 similarity.
• Early processing was facilitated for L2 tones with familiar pitch shapes and word-level functions from L1.
• Later ERP components related to grammatical processing were unaffected by L1 but influenced by lexicality and learning.

Conclusions:

• L1 properties significantly facilitate early stages of L2 tone processing, particularly when L1 and L2 tones are similar.
• These L1-based facilitation effects at the neural level do not necessarily translate to improved behavioral learning outcomes.
• The findings highlight the complex interplay between L1 experience and L2 acquisition processes.