Similarities and Differences in the Neural Correlates of Episodic Memory Retrieval and Working Memory

Cabeza, Roberto; Dolcos, Florin; Graham, Reiko; Nyberg, Lars

doi:10.1006/nimg.2002.1063

Cited by 413 publications

(316 citation statements)

References 61 publications

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“…The graph displays effect sizes extracted from the two activations and plotted along an oldness scale. Data from a cross-function fMRI studies comparing episodic retrieval (ER), cued attention (CA), and working memory (WM) (Cabeza, Dolcos, Graham, & Nyberg, 2002;Cabeza et al, 2003) A. ER and CA tasks elicited similar DPC activations, consistent the assumption that this region mediates top-down attentional processes in both tasks. B.…”

Section: Discussionmentioning

confidence: 55%

“…In contrast with this within-function approach, the cross-function approach asks why the same brain region is activated by very different cognitive functions Cabeza, Dolcos, Graham, & Nyberg, 2002;Cabeza et al, 2003;LaBar, Gitelman, Parrish, & Mesulam, 1999;Nyberg, Forkstam, Petersson, Cabeza, & Ingvar, 2002;Ranganath, Johnson, & D'Esposito, 2003). The cross-function approach is very useful to investigate the role of parietal regions in episodic retrieval because these regions are in fact activated by variety of cognitive tasks, and accounting for these overlaps in activation is likely to constrain theories about their role in episodic retrieval.…”

Section: Cross-function Comparisonsmentioning

confidence: 99%

“…In a cross-function fMRI study, an episodic retrieval task was compared to a cued attention task (Cabeza et al, 2003) and to a working memory task (Cabeza, Dolcos, Graham, & Nyberg, 2002). In all three tasks, each trial consisted of two 15-sec phases.…”

Section: Cross-function Comparisonsmentioning

confidence: 99%

“…As an example of a cognitive task that engages the episodic buffer, Baddeley (2000) cited the task used by Prabhakaran et al (2000), in which participants maintained integrated representations of letters and spatial locations. This task is similar to the one that yielded the data in Figure 3 (Cabeza, Dolcos, Graham, & Nyberg, 2002), which also involved maintaining integrated verbal-spatial representations. Yet, this task did not activate VPC at all (Figure 3-C).…”

Section: Cross-function Comparisonsmentioning

confidence: 99%

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Role of parietal regions in episodic memory retrieval: The dual attentional processes hypothesis

2008

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Although parietal cortex is frequently activated during episodic memory retrieval, damage to this region does not markedly impair episodic memory. To account for these and other findings, a new dual attentional processes (DAP) hypothesis is proposed. According to this hypothesis, dorsal parietal cortex (DPC) contributes top-down attentional processes guided by retrieval goals, whereas ventral parietal cortex (VPC) contributes bottom-up attentional processes captured by the retrieval output. Consistent with this hypothesis, DPC activity increases with retrieval effort whereas VPC activity increases with confidence in old and new responses. The DAP hypothesis can also account for the overlap of parietal activations across different cognitive domains and for opposing effects of parietal activity on encoding vs. retrieval. Finally, the DAP hypothesis explains why VPC lesions yield a memory neglect syndrome: a deficit in spontaneously reporting relevant memory details but not in accessing the same details when guided by specific questions.

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Section: Discussionmentioning

confidence: 55%

Section: Cross-function Comparisonsmentioning

confidence: 99%

Section: Cross-function Comparisonsmentioning

confidence: 99%

Section: Cross-function Comparisonsmentioning

confidence: 99%

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Role of parietal regions in episodic memory retrieval: The dual attentional processes hypothesis

2008

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“…Buckner et al, 1995;Cabeza et al, 2004;Cabeza, Dolcos, Graham, & Nyberg, 2002;Curtis, 2006;D'Esposito, Ballard, Zarahn, & Aguirre, 2000;Duncan & Owen, 2000;Nyberg et al, 2003). For example, in a meta-analysis Duncan and Owen (Duncan & Owen, 2000) reported similar bilateral DLPFC and VLPFC activations across studies examining such diverse cognitive abilities as visual divided attention, auditory discrimination, and task switching, to name a few.…”

Section: Introductionmentioning

confidence: 99%

Prefrontal contributions to domain-general executive control processes during temporal context retrieval

2008

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Neuroimaging studies have reported increased prefrontal cortex (PFC) activity during temporal context retrieval versus recognition memory. However, it remains unclear if these activations reflect PFC contributions to domain-general executive control processes or domain-specific retrieval processes. To gain a better understanding of the functional roles of these various PFC regions during temporal context retrieval we propose it is necessary to examine PFC activity across tasks from different domains, in which parallel manipulations are included targeting specific cognitive processes. In the current fMRI study, we examined domain-general and domain-specific PFC contributions to temporal context retrieval by increasing stimulus (but maintaining response number) and increasing response number (but maintaining stimulus number) across temporal context memory and ordering control tasks, for faces. The control task required subjects to order faces from youngest to oldest. Our behavioral results indicate that the combination of increased stimulus and response numbers significantly increased task difficulty for temporal context retrieval and ordering tasks. Across domains, increasing stimulus number, while maintaining response numbers, caused greater right lateral premotor cortex (BA 6/8) activity; whereas increasing response number, while maintaining stimulus number, caused greater domain-general left DLPFC (BA 9) and VLPFC (BA 44/45) activity. In addition, we found domain-specific right DLPFC (BA 9) activity only during retrieval events. These results highlight the functional heterogeneity of frontal cortex, and suggest its involvement in temporal context retrieval is related to its role in various cognitive control processes.

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Psychological and Neural Mechanisms of Short‐Term Memory

Lustig

Berman

Nee

et al. 2009

Handbook of Neuroscience for the Behavioral Sciences

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Similarities and Differences in the Neural Correlates of Episodic Memory Retrieval and Working Memory

Cited by 413 publications

References 61 publications

Role of parietal regions in episodic memory retrieval: The dual attentional processes hypothesis

Role of parietal regions in episodic memory retrieval: The dual attentional processes hypothesis

Prefrontal contributions to domain-general executive control processes during temporal context retrieval

Psychological and Neural Mechanisms of Short‐Term Memory

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