In the absence of visual input: Electrophysiological evidence of infants’ mapping of labels onto auditory objects

Developmental Cognitive Neuroscience

卷:45

Claudia Männel¹  Jutta L. Mueller²  Samuel H. Cosper³ 

[1] Corresponding author at: Institute of Cognitive Science, University of Osnabrück, Wachsbleiche 27, 49090 Osnabrück, Germany.;

[2] Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany;

[3] Institute of Cognitive Science, University of Osnabrück, Germany;

关键词: Word learning;    Associative learning;    Event-related potential;    EEG;    Language acquisition;    Auditory modality;   

DOI  :  

来源: DOAJ

【 摘 要 】

Despite the prominence of non-visual semantic features for some words (e.g., siren or thunder), little is known about when and how the meanings of those words that refer to auditory objects can be acquired in early infancy. With associative learning being an important mechanism of word learning, we ask the question whether associations between sounds and words lead to similar learning effects as associations between visual objects and words. In an event-related potential (ERP) study, 10- to 12-month-old infants were presented with pairs of environmental sounds and pseudowords in either a consistent (where sound-word mapping can occur) or inconsistent manner. Subsequently, the infants were presented with sound-pseudoword combinations either matching or violating the consistent pairs from the training phase. In the training phase, we observed word-form familiarity effects and pairing consistency effects for ERPs time-locked to the onset of the word. The test phase revealed N400-like effects for violated pairs as compared to matching pairs. These results indicate that associative word learning is also possible for auditory objects before infants’ first birthday. The specific temporal occurrence of the N400-like effect and topological distribution of the ERPs suggests that the object’s modality has an impact on how novel words are processed.

【 授权许可】

Unknown