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首頁> 外文期刊>Biological Psychology >Contingent capture of visual-spatial attention depends on capacity-limited central mechanisms: evidence from human electrophysiology and the psychological refractory period.
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Contingent capture of visual-spatial attention depends on capacity-limited central mechanisms: evidence from human electrophysiology and the psychological refractory period.

機譯：視空間注意力的偶然捕捉取決于能力受限的中心機制：來自人類電生理學(xué)和心理不應(yīng)期的證據(jù)。

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It has recently been demonstrated that a lateralized distractor that matches the individual's top-down control settings elicits an N2pc wave, an electrophysiological index of the focus of visual-spatial attention, indicating that contingent capture has a visual-spatial locus. Here, we investigated whether contingent capture required capacity-limited central resources by incorporating a contingent capture task as the second task of a psychological refractory period (PRP) dual-task paradigm. The N2pc was used to monitor where observers were attending while they performed concurrent central processing known to cause the PRP effect. The N2pc elicited by the lateralized distractor that matched the top-down control settings was attenuated in high concurrent central load conditions, indicating that although involuntary, the deployment of visual-spatial attention occurring during contingent capture depends on capacity-limited central resources.
機譯：最近已經(jīng)證明，與個體的自上而下的控制設(shè)置相匹配的側(cè)向牽引器會引起N2pc波，這是視覺空間注意力焦點的電生理指標(biāo)，表明偶然捕獲具有視覺空間軌跡。在這里，我們通過將偶然性捕獲任務(wù)作為心理不應(yīng)期（PRP）雙任務(wù)范式的第二項任務(wù)納入了研究，調(diào)查了偶然性捕獲是否需要容量受限的中央資源。 N2pc用于監(jiān)視觀察者在執(zhí)行并發(fā)中央處理（已知會引起PRP效果）的同時在哪里參加。在高并發(fā)中央負(fù)載條件下，與自上而下控制設(shè)置相匹配的橫向干擾器引起的N2pc在高并發(fā)中央負(fù)載條件下減弱了，這表明盡管是非自愿的，但在偶然捕獲期間發(fā)生的視覺空間注意力的部署取決于容量受限的中央資源。

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