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Todd S. Braver
Washington University in St. Louis
214Publications
74H-index
30kCitations
Publications 214
Newest
#1Elisa Di Rosa (UNIPD: University of Padua)
#2Sabrina Brigadoi (UNIPD: University of Padua)H-Index: 9
Last.Antonino Vallesi (UNIPD: University of Padua)H-Index: 25
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Abstract Several studies have evaluated the effect of anodal transcranial direct current stimulation (tDCS) over the prefrontal cortex (PFC) for the enhancement of working memory (WM) performance in healthy older adults. However, the mixed results obtained so far suggest the need for concurrent brain imaging, in order to more directly examine tDCS effects. The present study adopted a continuous multimodal approach utilizing functional near-infrared spectroscopy (fNIRS) to examine the interactive...
#1Matthew F. Singh (WashU: Washington University in St. Louis)
#2Todd S. BraverH-Index: 74
Last.ShiNung ChingH-Index: 15
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A key challenge for neuroscience is to develop generative, causal models of the human nervous system in an individualized, data-driven manner. Previous initiatives have either constructed biologically-plausible models that are not constrained by individual-level human brain activity or used data-driven statistical characterizations of individuals that are not mechanistic. We aim to bridge this gap with a new approach termed Mesoscale Individualized Neurodynamic (MINDy) modeling which enables net...
#1Debbie Yee (WashU: Washington University in St. Louis)H-Index: 2
#2Sarah Adams (WashU: Washington University in St. Louis)H-Index: 1
Last.Todd S. Braver (WashU: Washington University in St. Louis)H-Index: 74
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Motivational incentives play an influential role in value-based decision-making and cognitive control. A compelling hypothesis in the literature suggests that the motivational value of diverse incentives are integrated in the brain into a common currency value signal that influences decision-making and behavior. To investigate whether motivational integration processes change during healthy aging, we tested older (N = 44) and younger (N = 54) adults in an innovative incentive integration task pa...
#1Joset A. Etzel (WashU: Washington University in St. Louis)H-Index: 11
#2Todd S. Braver (WashU: Washington University in St. Louis)H-Index: 74
Pattern similarity analyses are increasingly used to characterize coding properties of brain regions, but relatively few have focused on cognitive control processes in FrontoParietal regions. Here, we use the Human Connectome Project (HCP) N-back task fMRI dataset to examine individual differences and genetic influences on the coding of working memory load (0-back, 2-back) and perceptual category (Face, Place). Participants were grouped into 105 MZ (monozygotic) twin, 78 DZ (dizygotic) twin, 99 ...
#1Andrew Westbrook (Brown University)H-Index: 7
#2Bidhan Lamichhane (WashU: Washington University in St. Louis)
Last.Todd S. Braver (WashU: Washington University in St. Louis)H-Index: 74
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Cognitive control is necessary for goal-directed behavior, yet people treat cognitive control demand as a cost, which discounts the value of rewards in a similar manner as other costs, such as delay or risk. It is unclear, however, whether the subjective value (SV) of cognitive effort is encoded in the same putatively domain-general brain valuation network implicated in other cost domains, or instead engages a distinct frontoparietal network, as implied by recent studies. Here, we provide rigoro...
#1Shelly R. Cooper (WashU: Washington University in St. Louis)H-Index: 12
#2Joshua J. Jackson (WashU: Washington University in St. Louis)H-Index: 21
Last.Todd S. Braver (WashU: Washington University in St. Louis)H-Index: 74
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Abstract Neuroimaging data is being increasingly utilized to address questions of individual difference. When examined with task-related fMRI (t-fMRI), individual differences are typically investigated via correlations between the BOLD activation signal at every voxel and a particular behavioral measure. This can be problematic because: 1) correlational designs require evaluation of t-fMRI psychometric properties, yet these are not well understood; and 2) bivariate correlations are severely limi...
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