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Meta-Analysis
. 2008;46(7):1787-99.
doi: 10.1016/j.neuropsychologia.2008.01.004. Epub 2008 Jan 17.

Memory retrieval and the parietal cortex: a review of evidence from a dual-process perspective

Kaia L Vilberg  1 , Michael D Rugg
Affiliations
Meta-Analysis

Memory retrieval and the parietal cortex: a review of evidence from a dual-process perspective

Kaia L Vilberg et al. Neuropsychologia. 2008.

Abstract

Although regions of the parietal cortex have been consistently implicated in episodic memory retrieval, the functional roles of these regions remain poorly understood. The present review presents a meta-analysis of findings from event-related fMRI studies reporting the loci of retrieval effects associated with familiarity- and recollection-related recognition judgments. The results of this analysis support previous suggestions that retrieval-related activity in lateral parietal cortex dissociates between superior regions, where activity likely reflects the task relevance of different classes of recognition test items, and more inferior regions where retrieval-related activity appears closely linked to successful recollection. It is proposed that inferior lateral parietal cortex forms part of a neural network supporting the 'episodic buffer' [Baddeley, A. D. (2000). The episodic buffer: A new component of working memory? Trends in Cognitive Sciences, 4, 417-423].

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Figures

Figure 1
Figure 1
Parietal loci sensitive to recollection vs. familiarity. These loci, which are reported in Table 1, have been mapped onto inflated fiducial brains (see text). Displayed from left to right are the left lateral, right lateral, and left medial surfaces of the inflated brain. The borders of Brodmann areas 7, 39, and 40 are demarcated by white lines. Note that for illustrative purposes, medial foci have been rendered onto the surface of the left hemisphere by reversing the sign of all positive x coordinates.
Figure 2
Figure 2
Example of the left parietal ERP old/new effect (Rugg, unpublished data). Waveforms elicited by three classes of test item in a source memory experiment are displayed at a left parietal scalp site (left panel). The arrow indicates the effect’s peak. The topography of the effect (right panel) is shown as a subtraction of the source incorrect waveforms from the source correct waveforms from 500 to 800ms poststimulus onset.
Figure 3
Figure 3
Left hemisphere cortical regions showing (left) spontaneous BOLD signal correlations with the hippocampus during rest, (middle) recollection effects (from Wagner et al., 2005), and (right) their overlap. Adapted from Figure 8 of Vincent et al. (2006) with permission of the authors and publishers.
See this image and copyright information in PMC

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