Left TPJ activity in verbal working memory: Implications for storage- and sensory-specific models of short term memory

Ravizza, Susan M.; Hazeltine, Eliot; Ruiz, Sandra; Zhu, David C.

doi:10.1016/j.neuroimage.2010.12.021

Cited by 50 publications

(42 citation statements)

References 56 publications

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“…Left SMG has been implicated in phonological processing (McDermott et al 2003), articulatory rehearsal (Démonet et al 1994), and linking basic components of vocabulary knowledge (Lee et al 2007), the AG in semantic processing (Vandenberghe et al 1996), and the posterior STG in early auditory processing and speech perception (Fiez et al 1996). Left TPJ has also been implicated in verbal short-term memory (Ravizza et al 2011). The right TPJ has been more frequently implicated in social processing and aspects of attention, including attention shifts (Shulman et al 2007(Shulman et al , 2009(Shulman et al , 2010Corbetta et al 2008;Mars et al 2012;Bzdok et al 2013;Krall et al 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Portions of the TPJ are structurally and functionally connected to the dorsal attention network. Reading difficulties may also stem from the lack of a functionally distinct attention network (Koyama et al 2013) or impaired TPJ-mediated attentional processes (Ravizza et al 2011). Finally, the TPJ has been implicated in cerebellar theories of RD: the cerebellum is important during silent reading and language comprehension to help detect errors, direct attention, and ensure proper timing/sequencing (Fabbro 2000).…”

Section: Introductionmentioning

confidence: 99%

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Individual Differences in Adult Reading Are Associated with Left Temporo-parietal to Dorsal Striatal Functional Connectivity

2015

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Reading skills vary widely in both children and adults, with a number of factors contributing to this variability. The most prominent factor may be related to efficiency of storage, representation, or retrieval of speech sounds. This phonological hypothesis is supported by findings of reduced activation in poor readers in left hemisphere ventro-lateral prefrontal and temporo-parietal phonological processing regions. Less well explained by phonological theories are reported hyperactivation in prefrontal, striatal, and insular regions. This study investigated functional connectivity of a core phonological processing region, the temporo-parietal junction (TPJ), in relation to reading skill in an adult community sample. We hypothesized that connectivity between TPJ and regions implicated in meta-analyses of reading disorder would correlate with individual differences in reading. Forty-four adults aged 30-54, ranging in reading ability, underwent resting fMRI scans. Data-driven connectivity clustering was used to identify TPJ subregions for seed-based connectivity analyses. Correlations were assessed between TPJ connectivity and timed-pseudoword reading (decoding) ability. We found a significant correlation wherein greater left supramarginal gyrus to anterior caudate connectivity was associated with weaker decoding. This suggests that hyperactivation of the dorsal striatum, reported in poor readers during reading tasks, may reflect compensatory or inefficient overintegration into attention networks.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Individual Differences in Adult Reading Are Associated with Left Temporo-parietal to Dorsal Striatal Functional Connectivity

2015

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“…Weidner et al (2009) have hypothesized that left TPJ integrates top-down attentional set with bottom-up saliency, particularly when attentional orienting is driven by nonspatial features (Coull et al, 2000;Mevorach et al, 2006;Hodsoll et al, 2009). Finally, Ravizza et al (2011) recently hypothesized that left TPJ is involved in attentional processing of verbal information. The distinction between verbal and visuospatial content is also suggested in the neuropsychological literature: left and right TPJ patients present with working memory deficits in the verbal versus visuospatial domains, respectively (Vallar and Shallice, 1990;Mort et al, 2003).…”

Section: Previous Studies the Right Versus Left Tpjmentioning

confidence: 99%

“…In addition to frequent (but less emphasized) coactivation with right TPJ, left TPJ has been hypothesized to orient attention toward stimuli that match a target "template" (Doricchi et al, 2010), relative target saliency , or episodic memories (particularly verbal ones) (Cabeza et al, 2008;Ciaramelli et al, 2008;Hutchinson et al, 2009;Ravizza et al, 2011). These hypothesized roles for left TPJ share the theme of encoding non-visuospatial, task-relevant features.…”

Section: Introductionmentioning

confidence: 99%

Contextual Knowledge Configures Attentional Control Networks

DiQuattro¹,

Geng²

2011

J. Neurosci.

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Contextual cues are predictive and provide behaviorally relevant information; they are not the main objective of the current task but can make behavior more efficient. Using fMRI, we investigated the brain networks involved in representing contextual information and translating it into an attentional control signal. Human subjects performed a visual search task for a low-contrast target accompanied by a single non-target that was either perceptually similar or more salient (i.e., higher contrast). Shorter reaction times (RTs) and higher accuracy were found on salient trials, suggesting that the salient item was rapidly identified as a non-target and immediately acts as a spatial "anti-cue" to reorient attention to the target. The relative saliency of the non-target determined BOLD responses in the left temporoparietal junction (TPJ) and inferior frontal gyrus (IFG). IFG correlated with RT specifically on salient non-target trials. In contrast, bilateral dorsal frontoparietal regions [including the frontal eye fields (FEFs)] were correlated with RT in all conditions. Effective connectivity analyses using dynamic causal modeling found an excitatory pathway from TPJ to IFG to FEF, suggesting that this was the pathway by which the contextual cue was translated into an attentional control signal that facilitated behavior. Additionally, the connection from FEF to TPJ was negatively modulated during target-similar trials, consistent with the inhibition of TPJ by dorsal attentional control regions during top-down serial visual search. We conclude that left TPJ and IFG form a sensory-driven network that integrates contextual knowledge with ongoing sensory information to provide an attentional control signal to FEF.

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“…Instead, the increased excitability elicited by anodal tDCS (during stimulation; Stagg & Nitsche, 2011) facilitated the acquisition of the phonological forms of the nonwords in long-term memory. This effect is likely to reflect the contributions of a number of neighbouring brain regions supporting aspects of phonological processing, including phonological short-term memory (Warrington & Shallice, 1969;Paulesu, Frith, & Frackowiak, 1993;Jonides et al, 1998;Henson, Burgess, & Frith, 2000;Buchsbaum & Esposito, 2008;Buchsbaum, Padmanabhan, & Berman, 2010;Acheson et al, 2011;Koenigs et al, 2011), phoneme sequencing (Gelfand & Bookheimer, 2003;Moser et al, 2009), translation of auditory to articulatory representations (Hickok & Poeppel, 2000;Papoutsi et al, 2009;Hickok, Houde, & Rong, 2011;Peschke, Ziegler, Eisenberger, & Baumgaertner, 2012), stimulus-driven attention (Downar, Crawley, Mikulis, & Davis, 2001;Ravizza, Hazeltine, Ruiz, & Zhu, 2011;Cabeza, Ciaramelli, & Moscovitch, 2012) and auditory processing for speech (posterior superior temporal cortex).…”

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confidence: 99%

tDCS to temporoparietal cortex during familiarisation enhances the subsequent phonological coherence of nonwords in immediate serial recall

Savill

Ashton

Gugliuzza

et al. 2015

Cortex

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et al. (4 more authors) (2015) tDCS to temporoparietal cortex during familiarisation enhances the subsequent phonological coherence of nonwords in immediate serial recall. Cortex; a journal devoted to the study of the nervous system and behavior. pp. 132-144. ISSN 1973-8102 https://doi.org/10.1016/j.cortex.2014.08.018 eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Items deposited in White Rose Research Online are protected by copyright, with all rights reserved unless indicated otherwise. They may be downloaded and/or printed for private study, or other acts as permitted by national copyright laws. The publisher or other rights holders may allow further reproduction and re-use of the full text version. This is indicated by the licence information on the White Rose Research Online record for the item. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. that any effects were due to the influence of tDCS on long-term learning and not a direct consequence of short-term changes in neural excitability. We found that only a few exposures to the phonological forms of nonwords were sufficient to enhance nonword ISR overall compared to entirely novel items. Anodal tDCS during familiarisation further enhanced the acquisition of phonological forms, producing a specific reduction in the frequency of phoneme migrations when sequences of nonwords were maintained in verbal short-term memory. More of the phonemes that were recalled were bound together as a whole correct nonword following tDCS. These data show that tDCS to left temporoparietal cortex can facilitate word learning by strengthening the acquisition of long-term phonological forms, irrespective of the availability of a concrete referent, and that the consequences of this learning can be seen beyond the learning task as strengthened phonological coherence in verbal short-term memory.

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Left TPJ activity in verbal working memory: Implications for storage- and sensory-specific models of short term memory

Cited by 50 publications

References 56 publications

Individual Differences in Adult Reading Are Associated with Left Temporo-parietal to Dorsal Striatal Functional Connectivity

Individual Differences in Adult Reading Are Associated with Left Temporo-parietal to Dorsal Striatal Functional Connectivity

Contextual Knowledge Configures Attentional Control Networks

tDCS to temporoparietal cortex during familiarisation enhances the subsequent phonological coherence of nonwords in immediate serial recall

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