Early and Late Electrophysiological Effects of Distractor Frequency in Picture Naming: Reconciling Input and Output Accounts.
Early and Late Electrophysiological Effects of Distractor Frequency in Picture Naming: Reconciling Input and Output Accounts.
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DOI：
10.1162/jocn_a_00831
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发表时间：
2015-10
影响因子：
3.2
通讯作者：
de Zubicaray GI
中科院分区：
文献类型：
--
作者：
Riès SK;Fraser D;McMahon KL;de Zubicaray GI
“干扰词频率效应”是指在图片词干扰（PWI）范式中，高频干扰词比低频干扰词对图片命名的影响更小。有人提出了关于这种影响的投入和产出的相互对立的帐户。前者将这种效应归因于分心物识别过程中的注意力选择机制，而后者将其归因于发音缓冲区中分心物和目标反应的监测/决策机制。使用高密度（128通道）脑电图（EEG），我们测试了这些竞争对手的帐户的假设。除了进行刺激和响应锁定的全脑校正分析，我们研究了正确相关的负性（CRN），事件相关电位（ERP）正确的试验中观察到的额中央电极，以反映参与域一般监测。全脑ERP分析揭示了一个显着的效果，分心频率在右下额叶和颞叶网站之间的100毫秒至300毫秒刺激后发作，在此期间，词汇访问被认为是发生。响应锁定，感兴趣的区域（ROI）分析额中央电极揭示了CRN开始前121毫秒和峰值后125毫秒的总平均值发声发作。斜率分析这一组成部分揭示了HF和LF干扰词之间的显着差异，与前者与陡峭的斜率的时间窗口，从100毫秒前到100毫秒后声乐发作。在时间窗口和成分上的ERP效应的发现表明，干扰频率效应很可能与一个以上的生理机制。
The ‘distractor-frequency effect’ refers to the finding that high-frequency (HF) distractor words slow picture naming less than low-frequency distractors (HF) in the picture-word interference (PWI) paradigm. Rival input and output accounts of this effect have been proposed. The former attributes the effect to attentional selection mechanisms operating during distractor recognition, while the latter attributes it to monitoring/decision mechanisms operating on distractor and target responses in an articulatory buffer. Using high-density (128 channel) electroencephalography (EEG), we tested hypotheses from these rival accounts. In addition to conducting stimulus- and response-locked whole-brain corrected analyses, we investigated the correct-related negativity (CRN), an event-related potential (ERP) observed on correct trials at fronto-central electrodes proposed to reflect the involvement of domain general monitoring. The whole-brain ERP analysis revealed a significant effect of distractor frequency at inferior right frontal and temporal sites between 100 ms to 300 ms post-stimulus onset, during which lexical access is thought to occur. Response-locked, region of interest (ROI) analyses of fronto-central electrodes revealed a CRN starting 121 ms before and peaking 125 ms after vocal onset on the grand averages. Slope analysis of this component revealed a significant difference between HF and LF distractor words, with the former associated with a steeper slope on the time-window spanning from 100 ms before to 100 ms after vocal onset. The finding of ERP effects in time-windows and components corresponding to both lexical processing and monitoring suggests the distractor frequency effect is most likely associated with more than one physiological mechanism.
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影响因子：
2.5
作者：
Dhooge, Elisah;De Baene, Wouter;Hartsuiker, Robert J.
通讯作者：
Hartsuiker, Robert J.
影响因子：
56.9
作者：
Bonini, Francesca;Burle, Boris;Vidal, Franck
通讯作者：
Vidal, Franck
影响因子：
3.8
作者：
Ganushchak LY;Christoffels IK;Schiller NO
通讯作者：
Schiller NO
影响因子：
3.7
作者：
Geukes S;Huster RJ;Wollbrink A;Junghöfer M;Zwitserlood P;Dobel C
通讯作者：
Dobel C
影响因子：
4.7
作者：
Carbonnell, L;Hasbroucq, T;Vidal, F
通讯作者：
Vidal, F