Performance of bilinguals in a picture-word interference task

Area of Science:

• Cognitive Psychology
• Neuroscience
• Linguistics

Background:

• Bilingualism research explores how multiple languages are represented in the brain.
• Understanding semantic memory organization in bilingual individuals is crucial.

Purpose of the Study:

• To investigate whether bilinguals' lexicons are integrated or separately stored.
• To examine how Spanish and English words interact in semantic memory.

Main Methods:

• Administered a picture-word interference task to Spanish-English bilingual adults.
• Used Spanish and English distractor words alongside picture naming.
• Analyzed interference effects and reaction times in both languages.

Main Results:

• Both Spanish and English distractor words slowed picture naming.
• An interaction effect was observed in English picture naming, influenced by practice.
• Spanish distractor words caused more interference initially than English words.

Conclusions:

• Bilingual semantic memory appears integrated, with closer links within than between languages.
• Task novelty influences interference patterns, diminishing with practice.
• Language representation in bilinguals supports an integrated lexicon model.