Direct electrophysiological evidence for the maintenance of retrieval orientations and the role of cognitive control.
Direct electrophysiological evidence for the maintenance of retrieval orientations and the role of cognitive control.
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DOI:
10.1016/j.neuroimage.2018.01.062
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发表时间:
2018-05-15
期刊:
影响因子:
5.7
通讯作者:
Herron JE
中科院分区:
文献类型:
--
作者:
Herron JE
Retrieval orientations are memory states that bias retrieval towards specific memory contents. Many neuroimaging studies have examined the influence of retrieval orientations on stimulus processing, but very little direct evidence exists regarding the ongoing maintenance of orientations themselves. Participants completed two memory tasks with different retrieval goals. ERPs were time-locked to a pre-stimulus fixation asterisk and contrasted according to retrieval goals. Pre-stimulus ERPs elicited during the two retrieval tasks diverged at frontal electrode sites. These differences onset early and were sustained throughout the fixation-stimulus interval. The functional and spatiotemporal characteristics of this ERP effect comprise the first direct electrophysiological evidence of the ongoing maintenance of retrieval orientations throughout a task. Moreover, this effect was eliminated in participants who performed a stroop task prior to the memory tests, indicating that reserves of cognitive control play an important role in the maintenance of retrieval orientations throughout memory tasks. Pre-stimulus fixation-locked ERPs differed during recognition according to retrieval goal. It is proposed that this preparatory effect is a correlate of retrieval orientation maintenance. The preparatory effect was eliminated in participants who first completed a stroop task. Cognitive control reserves therefore appear to influence retrieval orientation maintenance. Elimination of the preparatory effect was associated with enhanced post-retrieval monitoring.
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影响因子:
5.7
作者:
Herron JE;Evans LH;Wilding EL
通讯作者:
Wilding EL
影响因子:
3
作者:
GREENHOUSE, SW;GEISSER, S
通讯作者:
GEISSER, S
影响因子:
2.5
作者:
Dzulkifli, MA;Sharpe, HL;Wilding, EL
通讯作者:
Wilding, EL
影响因子:
2.6
作者:
Dzulkifli, MA;Wilding, EL
通讯作者:
Wilding, EL
影响因子:
2.9
作者:
Elward, R. L.;Wilding, E. L.
通讯作者:
Wilding, E. L.