P3 response during short-term memory retrieval revisited by a spatio-temporal analysis

Ergen, Mehmet; Yıldırım, Erol; Uslu, Atilla; Gürvit, Hakan; Demiralp, Tamer

doi:10.1016/j.ijpsycho.2012.02.009

Cited by 12 publications

(25 citation statements)

References 31 publications

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“…Theoretical models hypothesize that performance in the Sternberg working memory task consists of the encoding, retention, and retrieval phases. Numerous ERP studies have indicated that the P3 component reflects the retrieval phase (Ergen, Yildirim, Uslu, Gürvit, & Demiralp, ; Polich, ) and is correlated with memory‐scanning and decision‐making processes (Ergen et al., ). Based on the hypothesis that the P3 component reflects the amount of attentional resource allocation, the findings of this study imply that enhanced working memory in older adults with higher physical activity levels can be attributed to an increase in attentional resource allocation during the retrieval phase.…”

Section: Discussionmentioning

confidence: 99%

“…These findings suggest that physical activity is positively correlated with the speed of cognitive processing. Because the P3 component is relatively independent of the response selection and execution time (Pelosi et al., ) and is believed to occur during the retrieval process (Ergen et al., ), the shorter P3 latency that was measured in the older adults with higher physical activity suggests that physical activity accelerates the evaluation of the stimulus to devote more resources to working memory during the retrieval phase.…”

Section: Discussionmentioning

confidence: 99%

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Physical activity and working memory in healthy older adults: An ERP study

Chang

Huang²,

Chen

et al. 2013

Psychophysiology

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This study examined the effects of physical activity on working memory in older adults using both behavioral and neuroelectric measures. Older adults were assigned to either a higher or lower physical activity group, and event-related potentials were recorded during assessments of a modified Sternberg task. The results indicated that older adults in the higher physical activity group exhibited shorter response times, independent of the working memory load. Enhanced P3 and N1 amplitudes and a decreased P3 latency were observed in the higher physical activity group. These findings suggested that physical activity facilitates working memory by allocating more attentional resources and increasing the efficiency of evaluating the stimulus during the retrieval phase as well as engaging more attentional resources for the early discriminative processes during the encoding phase of a working memory task.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Physical activity and working memory in healthy older adults: An ERP study

Chang

Huang²,

Chen

et al. 2013

Psychophysiology

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“…The parahippocampal gyrus has dense interconnectivity with the amygdala, and plays an important role in emotional A c c e p t e d M a n u s c r i p t 22 / 41 picture perception (Sabatinelli, Keil, Frank, & Lang, 2013) and emotional memories (Kilpatrick & Cahill, 2003;Phelps, 2004). The emotional processes indexed by the LPP are considered late, memory-related processes evoking rich associations (Ergen, Yildirim, Uslu, Gurvit, & Demiralp, 2012;Mathes et al, 2012;Wright et al, 2002).…”

Section: Impact Of Emotional Arousal On Moralitymentioning

confidence: 99%

Neural evidence for moral intuition and the temporal dynamics of interactions between emotional processes and moral cognition

Gui

Gan

Liu

2015

Social Neuroscience

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Behavioral and neurological studies have revealed that emotions influence moral cognition. Although moral stimuli are emotionally charged, the time course of interactions between emotions and moral judgments remains unknown. In the present study, we investigated the temporal dynamics of the interaction between emotional processes and moral cognition. The results revealed that when making moral judgments, the time course of the event-related potential (ERP) waveform was significantly different between high emotional arousal and low emotional arousal contexts. Different stages of processing were distinguished, showing distinctive interactions between emotional processes and moral reasoning. The precise time course of moral intuition and moral reasoning sheds new light on theoretical models of moral psychology. Specifically, the N1 component (interpreted as representing moral intuition) did not appear to be influenced by emotional arousal. However, the N2 component and late positive potential were strongly affected by emotional arousal; the slow wave was influenced by both emotional arousal and morality, suggesting distinct moral processing at different emotional arousal levels.

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“…These sentence processing reports converge on work from outside the sentence processing domain: Polich et al (1983) report a P300 during tone retrieval, whose latency was positively correlated with digit-span test scores. Ergen et al (2012) found matching results for letter retrieval (for review, see Friedman and Johnson, 2000; Polich, 2007; Rugg and Curran, 2007). The even-shorter latency of the present positivity may be captured by previous proposals that argument–verb dependency resolution in verb-final languages may be initiated prior to the main verb (Friederici and Mecklinger, 1996; Aoshima et al, 2004; Phillips et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

“…The decay hypothesis predicts long argument–verb distances to increase TP-region brain activity in response to the subcategorizing verb, leading to an increased response in the EEG source time course. Since retrieval has been related to the P300 range, this effect should start early (Ergen et al, 2012; see Discussion) and may be initiated prior to the subcategorizing verb (Fiebach et al, 2001). The anticipability hypothesis predicts that long argument–verb distances decrease TP-region brain activity, leading to a decreased response in EEG source time course.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Dynamics of Argument Retrieval and Reordering: An fMRI and EEG Study on Sentence Processing

Meyer¹,

Obleser²,

Kiebel³

et al. 2012

Front. Psychology

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In sentence processing, it is still unclear how the neural language network successfully establishes argument–verb dependencies in its spatiotemporal neuronal dynamics. Previous work has suggested that the establishment of subject–verb and object–verb dependencies requires argument retrieval from working memory, and that dependency establishment in object-first sentences additionally necessitates argument reordering. We examine the spatiotemporal neuronal dynamics of the brain regions that subserve these sub-processes by crossing an argument reordering factor (i.e., subject-first versus object-first sentences) with an argument retrieval factor (i.e., short versus long argument–verb dependencies) in German. Using functional magnetic resonance imaging (fMRI), we found that reordering demands focally activate the left pars opercularis (Broca’s area), while storage and retrieval demands activated left temporo-parietal (TP) regions. In addition, when analyzing the time course of fMRI-informed equivalent current dipole sources in the EEG at the subcategorizing verb, we found that activity in the TP-region occurs relatively early (40–180 ms), followed by activity in Broca’s area (300–500 ms). These findings were matched by topographical correlation analyses of fMRI activations in EEG sensor space, showing that, in the scalp potential, TP-region activity surfaces as an early positivity and IFG activity as a later positivity in the scalp potential. These results provide fine-grained evidence for spatiotemporally separable sub-processes of argument retrieval and reordering in sentence processing.

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P3 response during short-term memory retrieval revisited by a spatio-temporal analysis

Cited by 12 publications

References 31 publications

Physical activity and working memory in healthy older adults: An ERP study

Physical activity and working memory in healthy older adults: An ERP study

Neural evidence for moral intuition and the temporal dynamics of interactions between emotional processes and moral cognition

Spatiotemporal Dynamics of Argument Retrieval and Reordering: An fMRI and EEG Study on Sentence Processing

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