Posterior midline and ventral parietal activity is associated with retrieval success and encoding failure

Daselaar, Sander M.; Prince, Steven E.; Dennis, Nancy A.; Hayes, Scott M.; Kim, Hong-Keun; Cabeza, Roberto

doi:10.3389/neuro.09.013.2009

Cited by 175 publications

(160 citation statements)

References 54 publications

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“…Furthermore, the activation of the left precuneus decreased with time for both Meaningful and Form-only words. The precuneus is known to be a part of the episodic/autobiographical memory network (Cavanna & Trimble, 2006), and is more active at retrieval than encoding (Daselaar et al, 2009;Huijbers et al, 2012). Thus the activation of this area is likely to reflect episodic memory retrieval, consistent with the idea that the episodic nature of the recognised novel words declined with time.…”

Section: Memory Representations Of Newly Acquired Wordssupporting

confidence: 50%

Interaction between episodic and semantic memory networks in the acquisition and consolidation of novel spoken words

Takashima

Bakker²,

Hell

et al. 2017

Brain and Language

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When a novel word is learned, its memory representation is thought to undergo a process of consolidation and integration. In this study, we tested whether the neural representations of novel words change as a function of consolidation by observing brain activation patterns just after learning and again after a delay of one week. Words learned with meanings were remembered better than those learned without meanings. Both episodic (hippocampus-dependent) and semantic (dependent on distributed neocortical areas) memory systems were utilised during recognition of the novel words. The extent to which the two systems were involved changed as a function of time and the amount of associated information, with more involvement of both systems for the meaningful words than for the form-only words after the one-week delay. These results suggest that the reason the meaningful words were remembered better is that their retrieval can benefit more from these two complementary memory systems.

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Section: Memory Representations Of Newly Acquired Wordssupporting

confidence: 50%

Interaction between episodic and semantic memory networks in the acquisition and consolidation of novel spoken words

Takashima

Bakker²,

Hell

et al. 2017

Brain and Language

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“…Instead, in older adults, larger right MFG volume was positively correlated with greater activity in the right parietal cortex, midline regions, and right caudate. Previous studies have reported positive associations between posterior midline cortical activity and improved retrieval success (Daselaar et al, 2009) and between posterior midline cortical and caudate activity during declarative retrieval (Burianova et al, 2010). Therefore, these activations may reflect a change in the retrieval network associated with right MFG volume with age.…”

Section: Age-related Changes In Right More Than Left Mfg Volumementioning

confidence: 88%

Age-Related Changes in Right Middle Frontal Gyrus Volume Correlate with Altered Episodic Retrieval Activity

Rajah¹,

Languay²,

Grady³

2011

J. Neurosci.

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Age-related deficits in episodic retrieval have been associated with volume reductions in the middle frontal gyrus (MFG). However, it remains unclear how this age-related reduction in MFG volume correlates with neural activity during retrieval. To address this, we conducted in vivo volumetry of the frontal cortex in young and older human adults and found more volume loss on the right than on the left MFG with age. We then examined how left and right MFG volume correlated with fMRI activity during successful retrieval of item, spatial context, and temporal context information in both age groups. In young adults, larger right MFG volume was positively correlated with greater activity in a commonly found episodic retrieval network that included bilateral dorsolateral prefrontal cortex (DLPFC) and bilateral inferior parietal cortex. Within this network, left DLPFC and right inferior parietal cortex activity predicted memory performance. In older adults, a positive structure-function association in DLPFC for either left or right MFG/DLPFC was not observed. Instead, right MFG volume was negatively correlated with activity in several regions in older adults, including the parahippocampal cortex (PHC) and anterior cingulate. Less activity in the PHC region predicted better item memory, and less activity in the anterior cingulate predicted better spatial context accuracy in older adults. We conclude that age-related change in the structure-function association in MFG/DLPFC impacts retrieval activity and performance, and those older adults with larger right MFG volume attempt to compensate for this change by modifying activity in other brain regions to help retrieval performance.

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“…However, there were some trends in the data linking PHC microstructure to total recall in the FCSRT. Recent evidence suggests that the posteromedial cortex extending into the posterior cingulate cortex is critical for strategic memory processes related to successful encoding/retrieval and meta-memory (Daselaar et al, 2009). Thus, it may be the case that the PHC contributes to strategic aspects of memory not directly assessed in the present study.…”

Section: Discussionmentioning

confidence: 99%

“…Episodic memory is supported by networks spanning frontal, temporal, and parietal lobes (Fletcher and Henson, 2001;Simons and Spiers, 2003;Cabeza et al, 2008). The various interconnections are presumed to enable distinct aspects of memory (Aggleton and Brown, 2006;Wilding and Herron, 2006;Daselaar et al, 2009). Whereas the differential effects of gray matter lesions have been extensively studied (Ranganath, 2010), less is known about the interconnecting fiber tracts.…”

Section: Introductionmentioning

confidence: 99%

Frontotemporal Connections in Episodic Memory and Aging: A Diffusion MRI Tractography Study

Metzler‐Baddeley¹,

Jones²,

Belaroussi³

et al. 2011

J. Neurosci.

215

242

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Human episodic memory is supported by networks of white matter tracts that connect frontal, temporal, and parietal regions. Degradation of white matter microstructure is increasingly recognized as a general mechanism of cognitive deterioration with aging. However, atrophy of gray matter regions also occurs and, to date, the potential role of specific white matter connections has been largely ignored. Changes to frontotemporal tracts may be important for the decline of episodic memory; while frontotemporal cooperation is known to be critical, the precise pathways of interaction are unknown. Diffusion-weighted MRI tractography was used to reconstruct three candidate fasciculi known to link components of memory networks: the fornix, the parahippocampal cingulum, and the uncinate fasciculus. Age-related changes in the microstructure of these tracts were investigated in 40 healthy older adults between the ages of 53 and 93 years. The relationships between aging, microstructure, and episodic memory were assessed for each individual tract. Age-related reductions of mean fractional anisotropy and/or increased mean diffusivity were found in all three tracts. However, age-related decline in recall was specifically associated with degradation of fornix microstructure, consistent with the view that this tract is important for episodic memory. In contrast, a decline in uncinate fasciculus microstructure was linked to impaired error monitoring in a visual object-location association task, echoing the effects of uncinate transection in monkeys. These results suggest that degradation of microstructure in the fornix and the uncinate fasciculus make critical but differential contributions to the mechanisms underlying age-related cognitive decline and subserve distinct components of memory.

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Posterior midline and ventral parietal activity is associated with retrieval success and encoding failure

Cited by 175 publications

References 54 publications

Interaction between episodic and semantic memory networks in the acquisition and consolidation of novel spoken words

Interaction between episodic and semantic memory networks in the acquisition and consolidation of novel spoken words

Age-Related Changes in Right Middle Frontal Gyrus Volume Correlate with Altered Episodic Retrieval Activity

Frontotemporal Connections in Episodic Memory and Aging: A Diffusion MRI Tractography Study

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