Dissociable networks involved in spatial and temporal order source retrieval

Ekstrom, Arne D.; Copara, Milagros S.; Isham, Eve A.; Wang, Wei‐Chun; Yonelinas, Andrew P.

doi:10.1016/j.neuroimage.2011.02.033

Cited by 128 publications

(125 citation statements)

References 62 publications

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“…Studies involving humans with damage to the temporal lobes (Hopkins et al 1995;Mayes et al 2001), functional neuroimaging studies in humans (Ekstrom and Bookheimer 2007;Lehn et al 2009), and studies in rats (Gilbert et al 2001;Fortin et al 2002;Manns et al 2007;Howland et al 2008) suggest that the temporal lobes also play a role in memory for the temporal order of items in a sequence. Therefore, as demonstrated recently by Devito and Eichenbaum (2011) and Ekstrom et al (2011), there is evidence that both the frontal and temporal lobes are essential for temporal order memory.…”

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confidence: 68%

The effect of interference on temporal order memory for random and fixed sequences in nondemented older adults

Tolentino

Pirogovsky²,

Luu³

et al. 2012

Learn. Mem.

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Two experiments tested the effect of temporal interference on order memory for fixed and random sequences in young adults and nondemented older adults. The results demonstrate that temporal order memory for fixed and random sequences is impaired in nondemented older adults, particularly when temporal interference is high. However, temporal order memory for fixed sequences is comparable between older adults and young adults when temporal interference is minimized. The results suggest that temporal order memory is less efficient and more susceptible to interference in older adults, possibly due to impaired temporal pattern separation.

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confidence: 68%

The effect of interference on temporal order memory for random and fixed sequences in nondemented older adults

Tolentino

Pirogovsky²,

Luu³

et al. 2012

Learn. Mem.

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“…In LTM, previous neuroimaging studies have investigated memory retrieval based on this classification [Burgess et al, 2001; Ekstrom and Bookheimer, 2007; Ekstrom et al, 2011; Fujii et al, 2004; Hayes et al, 2004; Nyberg et al, 1996]. However, the brain regions involved in attribute‐specific retrieval do not appear to correspond following long‐term retention delays [Furman et al, 2012; Magen et al, 2009] versus short‐term delays [Mohr et al, 2006; Munk et al, 2002].…”

Section: Introductionmentioning

confidence: 99%

Immediate memory for “when, where and what”: Short‐delay retrieval using dynamic naturalistic material

Kwok

Macaluso

2015

Human Brain Mapping

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We investigated the neural correlates supporting three kinds of memory judgments after very short delays using naturalistic material. In two functional magnetic resonance imaging (fMRI) experiments, subjects watched short movie clips, and after a short retention (1.5–2.5 s), made mnemonic judgments about specific aspects of the clips. In Experiment 1, subjects were presented with two scenes and required to either choose the scene that happened earlier in the clip (“scene‐chronology”), or with a correct spatial arrangement (“scene‐layout”), or that had been shown (“scene‐recognition”). To segregate activity specific to seen versus unseen stimuli, in Experiment 2 only one probe image was presented (either target or foil). Across the two experiments, we replicated three patterns underlying the three specific forms of memory judgment. The precuneus was activated during temporal‐order retrieval, the superior parietal cortex was activated bilaterally for spatial‐related configuration judgments, whereas the medial frontal cortex during scene recognition. Conjunction analyses with a previous study that used analogous retrieval tasks, but a much longer delay (>1 day), demonstrated that this dissociation pattern is independent of retention delay. We conclude that analogous brain regions mediate task‐specific retrieval across vastly different delays, consistent with the proposal of scale‐invariance in episodic memory retrieval. Hum Brain Mapp 36:2495–2513, 2015. © 2015 The Authors Human Brain Mapping Published by Wiley Periodicals, Inc.

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“…These findings have led to the view that the hippocampus contributes to event representation (i.e., the construction of spatially coherent scenes) rather than temporal processes (Mullally & Maguire, 2014;Eacott & Easton, 2012;. On the other hand, studies that specifically focused on the eventsequencing aspect of time demonstrated hippocampal activations during the retrieval of temporal order (Ekstrom et al, 2011;Lehn et al, 2009), suggesting that the hippocampus plays a role in the temporal organization of event representations (Eichenbaum, 2013). Our finding that event content and temporal order were both associated with hippocampal activations, but in distinct portions, may help reconcile these two views on the contribution of the hippocampus to past and future thought.…”

Section: Discussionmentioning

confidence: 99%

“…On the one hand, it has been found that several regions of the core network (notably the hippocampus) are activated when imagining events or scenes that are not located at particular times in the past or future (Summerfield, Hassabis, & Maguire, 2010;Hassabis, Kumaran, & Maguire, 2007), suggesting that these regions support nontemporal processes (Mullally & Maguire, 2014;Eacott & Easton, 2012;. On the other hand, there is evidence that the hippocampus is activated when remembering temporal order (e.g., Ekstrom, Copara, Isham, Wang, & Yonelinas, 2011;Lehn et al, 2009), suggesting that the hippocampus plays a role in the temporal/ sequential organization of memory (Eichenbaum, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…The pFC has long been hypothesized to play a key role in the processing of time (Wheeler, Stuss, & Tulving, 1997;Ingvar, 1985)-in particular, the temporal organization of behavioral sequences (Fuster, 2001)-and neuroimaging studies have demonstrated activations of lateral prefrontal regions when people remember the order of past events (e.g., Ekstrom et al, 2011;St Jacques et al, 2008). Moreover, temporal information is often construed in terms of spatial representations (e.g., mapping events along a mental time line; Nunez & Cooperrider, 2013;Christian, Miles, & Macrae, 2012;Arzy, Adi-Japha, & Blanke, 2009;Boroditsky, 2000), and the parietal cortex may play a role in this process (Bueti & Walsh, 2009).…”

Section: Introductionmentioning

confidence: 99%

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The Neural Basis of Temporal Order Processing in Past and Future Thought

D’Argembeau

Jeunehomme

Majerus

et al. 2015

Journal of Cognitive Neuroscience

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Abstract■ Although growing evidence has shown that remembering the past and imagining the future recruit a common core network of frontal-parietal-temporal regions, the extent to which these regions contribute to the temporal dimension of autobiographical thought remains unclear. In this fMRI study, we focused on the event-sequencing aspect of time and examined whether ordering past and future events involve common neural substrates. Participants had to determine which of two past (or future) events occurred (or would occur) before the other, and these order judgments were compared with a task requiring to think about the content of the same past or future events. For both past and future events, we found that the left posterior hippocampus was more activated when establishing the order of events, whereas the anterior hippocampus was more activated when representing their content. Aside from the hippocampus, most of the brain regions that were activated when thinking about temporal order (notably the intraparietal sulcus, dorsolateral pFC, dorsal anterior cingulate, and visual cortex) lied outside the core network and may reflect the involvement of controlled processes and visuospatial imagery to locate events in time. Collectively, these findings suggest (a) that the same processing operations are engaged for ordering past events and planned future events in time, (b) that anterior and posterior portions of the hippocampus are involved in processing different aspects of autobiographical thought, and (c) that temporal order is not necessarily an intrinsic property of memory or future thought but instead requires additional, controlled processes. ■

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Dissociable networks involved in spatial and temporal order source retrieval

Cited by 128 publications

References 62 publications

The effect of interference on temporal order memory for random and fixed sequences in nondemented older adults

The effect of interference on temporal order memory for random and fixed sequences in nondemented older adults

Immediate memory for “when, where and what”: Short‐delay retrieval using dynamic naturalistic material

The Neural Basis of Temporal Order Processing in Past and Future Thought

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