Real-time processing in picture naming in adults who stutter: ERP evidence.
Real-time processing in picture naming in adults who stutter: ERP evidence.
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DOI：
10.1016/j.clinph.2014.05.009
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发表时间：
2015-02
期刊：
影响因子：
--
通讯作者：
Constantine JL
中科院分区：
文献类型：
--
作者：
Maxfield ND;Morris K;Frisch SA;Morphew K;Constantine JL
目的是比较口吃成年人（AWS）与典型流利成年人（TFA）在图片命名中的实时语言/认知处理。参与者命名的图片前面的蒙面总理的话。引物和目标图片标签相同或不匹配。分析了启动效应对命名和图片诱发ERP活动的影响。词汇知识与这些措施的相关性进行了评估。启动提高了两组的命名RT和准确性。反应时间较长的AWS，并与接受性词汇在TFA。电生理，后P1振幅负相关，表达性词汇在TFA与接受性词汇在AWS。额叶/颞叶P1波幅与AWS中的表达词汇呈正相关。身份启动增强了两组的前/后N2振幅，并衰减AWS的P280振幅。N400引发在AWS中受到地形限制。结果表明，概念知识是感性接地在TFA的表达性词汇与AWS的接受性词汇。AWS中的表达性词汇可能与对不相关概念信息的更大抑制相关。启动增强了两组的N2指数认知控制和视觉注意力。P280指数的焦点注意减弱启动在AWS中。地形限制的N400启动表明，词元/词形连接在AWS中较弱。在AWS中，图片命名中的实时语言/认知处理以不同的方式运行。
The aim was to compare real-time language/cognitive processing in picture naming in adults who stutter (AWS) versus typically-fluent adults (TFA). Participants named pictures preceded by masked prime words. Primes and target picture labels were Identical or mismatched. Priming effects on naming and picture-elicited ERP activity were analyzed. Vocabulary knowledge correlations with these measures were assessed. Priming improved naming RTs and accuracy in both groups. RTs were longer for AWS, and correlated positively with receptive vocabulary in TFA. Electrophysiologically, posterior-P1 amplitude negatively correlated with expressive vocabulary in TFA versus receptive vocabulary in AWS. Frontal/temporal-P1 amplitude correlated positively with expressive vocabulary in AWS. Identity priming enhanced frontal/posterior-N2 amplitude in both groups, and attenuated P280 amplitude in AWS. N400 priming was topographically-restricted in AWS. Results suggest that conceptual knowledge was perceptually-grounded in expressive vocabulary in TFA versus receptive vocabulary in AWS. Poorer expressive vocabulary in AWS was potentially associated with greater suppression of irrelevant conceptual information. Priming enhanced N2-indexed cognitive control and visual attention in both groups. P280-indexed focal attention attenuated with priming in AWS only. Topographically-restricted N400 priming suggests that lemma/word form connections were weaker in AWS. Real-time language/cognitive processing in picture naming operates differently in AWS.
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影响因子：
2.5
作者：
Bushell, CM
通讯作者：
Bushell, CM
影响因子：
2.9
作者：
Chauncey, Krysta;Holcomb, Phillip J.;Grainger, Jonathan
通讯作者：
Grainger, Jonathan
DOI：
10.1037/0278-7393.16.2.341
发表时间：
1990-03-01
影响因子：
2.6
作者：
CARR, TH;DAGENBACH, D
通讯作者：
DAGENBACH, D
影响因子：
2.1
作者：
ARENDS, N;POVEL, DJ;KOLK, H
通讯作者：
KOLK, H
影响因子：
3.2
作者：
Aristei, Sabrina;Melinger, Alissa;Abdel Rahman, Rasha
通讯作者：
Abdel Rahman, Rasha