What is the parietal lobe contribution to long-term memory?

Yazar, Yasemin; Bergström, Zara M.; Simons, Jon S.

doi:10.1016/j.cortex.2012.05.011

Cited by 26 publications

(23 citation statements)

References 14 publications

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“…This brain region is a cross‐modal association area [Seghier, ] that is functionally connected to multiple areas of the DN [Andrews‐Hanna et al, ], and it has been associated with a wide range of cognitive functions, including semantic processing, reading, theory of mind, spatial cognition, working memory, and episodic memory [for reviews, see Cabeza et al, ; Olson and Berryhill, ; Seghier, ]. Several recent theoretical accounts have been proposed to explain the contributions of the pIPL to these different domains, including the maintenance of information in working memory [Vilberg and Rugg, ; Wagner et al, ], the integration of spatiotemporal knowledge about event concepts [Binder and Desai, ], or the feeling of vividness and re‐living that accompanies episodic memory retrieval [Ally et al, ; Yazar et al, ]. Another parsimonious theory regarding the functional role of the pIPL is that this region supports bottom‐up attentional processes by which salient information automatically captures attention [Cabeza et al, ; Ciaramelli et al, ].…”

Section: Discussionmentioning

confidence: 99%

Neural correlates of personal goal processing during episodic future thinking and mind-wandering: An ALE meta-analysis

2015

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The ability to imagine the future is a complex mental faculty that depends on an ensemble of cognitive processes supported by an extended set of brain regions. Our aim here was to shed light on one key component of future thinking-personal goal processing-and to determine its neural correlates during both directed and spontaneous forms of thoughts. To address this question, we performed separate ALE meta-analyses of neuroimaging studies of episodic future thinking, mind-wandering, and personal goal processing, and then investigated the commonalities and differences in brain activity between these three domains. The results showed that the three domains activated a common set of brain regions within the default network and, most notably, the medial prefrontal cortex. This finding suggests that the medial prefrontal cortex mediates the processing of personal goals during both episodic future thinking and mind-wandering. Differences in activation were also observed, and notably regions supporting cognitive control processes (the dorsolateral prefrontal cortex) were recruited to a lesser extent during mind-wandering than experimentally directed future thinking, suggesting that different kinds of self-generated thoughts may recruit varying levels of attentional control abilities.

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Section: Discussionmentioning

confidence: 99%

Neural correlates of personal goal processing during episodic future thinking and mind-wandering: An ALE meta-analysis

2015

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“…The first derives from findings of fewer 'remember' responses, fewer high-confidence responses, and lack of richness, vividness and specificity of retrieved episodic events in patients with parietal lesions (Berryhill et al, 2007;Simons et al, 2010;Hower et al, 2014). Under this account (Yazar et al, 2012), vPPC involvement is viewed in terms of subjective mnemonic abilities, with the AnG involved in one's own experience of episodic memory retrieval, rather than in objective memory performance as expressed in response accuracy. This "Subjectivity account" has been further supported by several studies with healthy individuals (Qin et al, 2011;Yazar et al, 2014;.…”

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Multimodal integration and vividness in the angular gyrus during episodic encoding and retrieval

Tibon

Fuhrmann

Levy

et al. 2018

Preprint

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Much evidence suggests that the angular gyrus (AnG) is involved in episodic memory, but its precise role is yet to be determined. We examined two possible accounts, within the same experimental paradigm: the CoBRA account (Shimamura, 2011), which suggests that the AnG acts as a convergence zone that binds multimodal episodic features; and the Subjectivity account (Yazar et al., 2012), which implicates AnG involvement in subjective mnemonic experience (such as vividness or confidence). fMRI was employed during both encoding and retrieval of paired-associates. During study, female and male human participants memorised picture-pairs of common objects (in the unimodal task) or of an object-picture and an environmental sound (in the crossmodal task). At test, they performed a cuedrecall task, and further indicated the vividness of their memory. During retrieval, BOLD activation in the AnG was greatest for vividly remembered associates, consistent with the Subjectivity account.During encoding, the same effect of vividness was found, but this was further modulated by task:Greater activations were associated with subsequent recall in the crossmodal than the unimodal task.Thus, encoding data suggests an additional role to the AnG in cross-modal integration, consistent with its role at retrieval proposed by CoBRA. These results resolve some of the puzzles in the literature and indicate that the AnG can play different roles during encoding and retrieval, determined by the cognitive demands posed by different mnemonic tasks. ANGULAR GYRUS IN EPISODIC MEMORY 2 Significance StatementWe offer new insights into the multiplicity of processes that are associated with angular gyrus (AnG) activation during encoding and retrieval of newly formed memories. We used fMRI while human participants learned and subsequently recalled pairs of objects presented to the same sensory modality or to different modalities. We were able to show that the AnG is involved when vivid memories are created and retrieved, as well as when encoded information is integrated across different sensory modalities. These findings provide novel evidence for the contribution of the AnG to our subjective experience of remembering, alongside its role in integrative processes that promote subsequent memory. ANGULAR GYRUS IN EPISODIC MEMORY

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“…These contrasts consistently reveal activation in AnG, HC, and PHC (Diana et al., 2007; Spaniol et al, 2009; Vilberg & Rugg, 2008). Despite this consistency, there has been ongoing debate about the extent to which such effects reflect processes pertinent to the subjective experience of remembering (Aggleton & Brown, 1999; Yazar, Bergström, & Simons, 2012; Yonelinas, Aly, Wang, & Koen, 2010), the access to contextual information about an encoding episode (Davachi, 2006; Kafkas & Montaldi, 2012; Montaldi & Mayes, 2010; Ranganath, 2010a), or merely the retrieval of information about a strongly encoded item (Smith, Wixted, & Squire, 2011; Wais, 2011). The present results suggest that the answer varies for different regions within the recollection network.…”

Section: Discussionmentioning

confidence: 99%

Brain Mechanisms of Successful Recognition through Retrieval of Semantic Context

Flegal

Marín-Gutiérrez

Ragland

et al. 2014

Journal of Cognitive Neuroscience

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Episodic memory is associated with the encoding and retrieval of context information, and with a subjective sense of re-experiencing past events. The neural correlates of episodic retrieval have been extensively studied using fMRI, leading to the identification of a “general recollection network” including medial temporal, parietal, and prefrontal regions. However, in these studies, it is difficult to disentangle the effects of context retrieval from recollection. In the present study, we used functional magnetic resonance imaging (fMRI) to determine the extent to which the recruitment of regions in the recollection network is contingent on context reinstatement. Participants were scanned during a cued recognition test for target words from encoded sentences. Studied target words were preceded by either a cue word studied in the same sentence (thus congruent with encoding context), or a cue word studied in a different sentence (thus incongruent with encoding context). Converging fMRI results from independently-defined regions of interest and whole-brain analysis showed regional specificity in the recollection network. Activity in hippocampus and parahippocampal cortex was specifically increased during successful retrieval following congruent context cues, whereas parietal and prefrontal components of the general recollection network were associated with confident retrieval irrespective of contextual congruency. Our findings implicate medial temporal regions in the retrieval of semantic context, contributing to, but dissociable from, recollective experience.

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What is the parietal lobe contribution to long-term memory?

Cited by 26 publications

References 14 publications

Neural correlates of personal goal processing during episodic future thinking and mind-wandering: An ALE meta-analysis

Neural correlates of personal goal processing during episodic future thinking and mind-wandering: An ALE meta-analysis

Multimodal integration and vividness in the angular gyrus during episodic encoding and retrieval

Brain Mechanisms of Successful Recognition through Retrieval of Semantic Context

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