Contextual Knowledge Configures Attentional Control Networks

DiQuattro, Nicholas E.; Geng, Joy J.

doi:10.1523/jneurosci.4040-11.2011

Cited by 90 publications

(85 citation statements)

References 70 publications

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“…Alternatively, the right TPJ might support the same function in all number and continuous quantity tasks, for instance, comparison processes may be a point of convergence between these tasks (Cantlon et al, 2009). More specifically, the number and the continuous quantity tasks imply the preparation and maintenance of a target-stimulus template to be compared with the actual target, that is, a matching or mismatching process, which is linked to the left and right TPJ area (DiQuattro & Geng, 2011;Doricchi, Macci, Silvetti, & Macaluso, 2010;Kincade et al, 2005). This comparison or matching process may be different in the luminance task, possibly because information about luminance could be obtained directly from every local part of the stimulus line (Gilchrist & Radonjić, 2009).…”

Section: One or Multiple Quantity Systems?mentioning

confidence: 99%

Commonalities for Numerical and Continuous Quantity Skills at Temporo-parietal Junction

Cappelletti

Chamberlain

Freeman

et al. 2014

Journal of Cognitive Neuroscience

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Abstract■ How do our abilities to process number and other continuous quantities such as time and space relate to each other? Recent evidence suggests that these abilities share common magnitude processing and neural resources, although other findings also highlight the role of dimension-specific processes. To further characterize the relation between number, time, and space, we first examined them in a population with a developmental numerical dysfunction (developmental dyscalculia) and then assessed the extent to which these abilities correlated both behaviorally and anatomically in numerically normal participants. We found that (1) participants with dyscalculia showed preserved continuous quantity processing and (2) in numerically normal adults, numerical and continuous quantity abilities were at least partially dissociated both behaviorally and anatomically. Specifically, gray matter volume correlated with both measures of numerical and continuous quantity processing in the right TPJ; in contrast, individual differences in number proficiency were associated with gray matter volume in numberspecific cortical regions in the right parietal lobe. Together, our new converging evidence of selective numerical impairment and of number-specific brain areas at least partially distinct from common magnitude areas suggests that the human brain is equipped with different ways of quantifying the outside world. ■

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Section: One or Multiple Quantity Systems?mentioning

confidence: 99%

Commonalities for Numerical and Continuous Quantity Skills at Temporo-parietal Junction

Cappelletti

Chamberlain

Freeman

et al. 2014

Journal of Cognitive Neuroscience

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“…This self-expansion affected the perceptual processing of the stimuli consistent with the selftagged stimuli being perceptually more salient (6). The processing of salient information in the environment is suggested to involve the bilateral ventral frontoparietal attentional network (29,30), with the left hemisphere (e.g., the temporoparietal junction and the frontal eye fields) specifically involved in processing salient information based on its potential behavioral relevance (31). Interestingly the posterior part of the ventral attentional network partly overlaps with regions that process social cues (refs.…”

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confidence: 95%

Coupling social attention to the self forms a network for personal significance

Sui

Rotshtein

Humphreys

2013

Proc. Natl. Acad. Sci. U.S.A.

201

232

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Prior social psychological studies show that newly assigned personal significance can modulate high-level cognitive processes, e.g., memory and social evaluation, with self-and other-related information processed in dissociated prefrontal structure: ventral vs. dorsal, respectively. Here, we demonstrate the impact of personal significance on perception and show the neural network that supports this effect. We used an associative learning procedure in which we "tag" a neutral shape with a self-relevant label. Participants were instructed to associate three neutral shapes with labels for themselves, their best friend, or an unfamiliar other. Functional magnetic resonance imaging data were acquired while participants judged whether the shape-label pairs were maintained or swapped. Behaviorally, participants rapidly tagged a neutral stimulus with self-relevance, showing a robust advantage for self-tagged stimuli. Self-tagging responses were associated with enhanced activity in brain regions linked to self-representation [the ventral medial prefrontal cortex (vmPFC)] and to sensory-driven regions associated with social attention [the left posterior superior temporal sulcus (LpSTS)]. In contrast, associations formed with other people recruited a dorsal frontoparietal control network, with the two networks being inversely correlated. Responses in the vmPFC and LpSTS predicted behavioral self-bias effects. Effective connectivity analyses showed that the vmPFC and the LpSTS were functionally coupled, with the strength of coupling associated with behavioral self-biases. The data show that assignment of personal social significance affects perceptual matching by coupling internal self-representations to brain regions modulating attentional responses to external stimuli.H umans have the inherent ability to rapidly learn the social salience of a stimulus enhancing survival. There are a considerable number of studies on the effect of self-association in social psychology that have shown that there is enhanced importance assigned to self-associated objects (1), increased preference (2, 3), and stronger memory (4, 5). For example, by assigning participants to a specific team associated with specific symbols, participants typically rapidly orient their attention and prioritize the subsequent processing toward self-associated team members when asked to make social evaluations and allocate rewards (2, 3). These effects are not confined to high-level cognitive processes, however, Sui et al. recently demonstrated that self-associations with neutral geometrical shapes can rapidly alter perception (6), so that self-associated shapes are less affected by contrast reduction than shapes associated to other people. How this rapid perceptual effect of self-tagging emerges was investigated here.In the past decade, there has been an increased interest in the neural mechanism that support self-related processing (7-14) and, in parallel, research that focuses on the way we process information about others (15)(16)(17)(18)(19). The work has rev...

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“…The TPJ response to valid targets has been related to the late coding of the "match" between the expected and the actual position of these targets (Doricchi et al, 2010). This function also allows evaluating contextual associations between cues and targets (DiQuattro & Geng, 2011).…”

mentioning

confidence: 99%