Lateralization of the parietal old/new effect: An event-related fMRI study comparing recognition memory for words and faces

Activation of right parietal cortex during memory retrieval of nonlinguistic auditory stimuli

“…Whereas previous research has shown that the successful retrieval effect occurs predominantly in the left ventral PPC (Guerin & Miller, 2009;Vilberg & Rugg, 2008), we observed right ventral PPC activity during the retrieval of agrammatical music stimuli. Indeed, there was absolutely no evidence that the effect was bilateral, as has been found for other stimuli (e.g., pictures).…”

“…Even when a more lenient statistical threshold was used for the whole-brain analysis ( p .05), no significant activity in the left ventral PPC was observed. Interestingly, this laterality effect was not observed for medial parietal regions; significant activation was found in bilateral precuneus (for a similar effect, see Guerin & Miller, 2009). Additional activation was observed in multiple regions within the bilateral frontal lobes (see Table 3).…”

“…Activity in the dorsal PPC (the superior parietal lobule and intraparietal sulcus) during encoding was related to later successful retrieval, whereas activity in the ventral PPC (intraparietal lobule and temporal-parietal junction) was related to later memory failure. Interestingly, when subsequent memory effects were segregated according to whether the retention interval was long (24 h or longer) or short (45 min or less), all of the studies that a decidedly different or indirect role in memory retrieval (Guerin & Miller, 2009;Vilberg & Rugg, 2008).…”

“…Recently, Guerin and Miller (2009) directly addressed the role of verbal mediation in memory retrieval by com-recording of novel compositions were chosen as stimuli because they were nonverbalizable, did not adhere to the traditional rules of musical structure, and were unfamiliar to all participants. Clips ranged from 1,800 to 2,000 msec long and were normalized in loudness.…”

Episodic retrieval and the cortical binding of relational activity

“…The successful retrieval effect has been observed using a variety of stimuli types, such as visual and spoken words, pictures, faces, natural sounds, and music clips (Cansino, Maquet, Dolan, & Rugg, 2002;Dobbins & Wagner, 2005;Guerin & Miller, 2009;Henson, Rugg, Shallice, Josephs, & Dolan, 1999;Klostermann, Kane & Shimamura 2008;Klostermann, Loui, & Shimamura, 2009;Leube, Erb, Grodd, Bartels, & Kircher, 2003;Shannon & Buckner, 2004;Svoboda, McKinnon, & Levine, 2006). It has also been observed under various test conditions and manipulations, such as recognition memory, cued recall, source memory, confidence judgments, and motor responses (see de Zubicaray et al, 2007;Shannon & Buckner, 2004;Vilberg & Rugg 2008;Wagner et al, 2005).…”