Pre-Activation Negativity (PrAN) in Brain Potentials to Unfolding Words

被引：23
|
作者：
Soderstrom, Pelle [1 ]
Horne, Merle [1 ]
Frid, Johan [2 ]
Roll, Mikael [1 ]
机构：
[1] Lund Univ, Ctr Languages & Literature, Lund, Sweden
[2] Lund Univ, Humanities Lab, Lund, Sweden
来源：
FRONTIERS IN HUMAN NEUROSCIENCE | 2016年 / 10卷
基金：
瑞典研究理事会;
关键词：
ERP; pre-activation; prediction; speech processing; lexical competition; word-initial fragment; PRAN; EVENT-RELATED POTENTIALS; SPOKEN WORDS; NEIGHBORHOOD ACTIVATION; TIME-COURSE; LEXICAL COMPETITION; SPEECH RECOGNITION; TRACKING; MODEL; PREACTIVATION; PERCEPTION;
D O I：
10.3389/fnhum.2016.00512
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
We describe an event-related potential (ERP) effect termed the "pre-activation negativity" (PrAN), which is proposed to index the degree of pre-activation of upcoming word-internal morphemes in speech processing. Using lexical competition measures based on word-initial speech fragments (WIFs), as well as statistical analyses of ERP data from three experiments, it is shown that the PrAN is sensitive to lexical competition and that it reflects the degree of predictive certainty: the negativity is larger when there are fewer upcoming lexical competitors.
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页数：11
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