scholarly journals White Matter and Social Cognition

2017 ◽  
Author(s):  
Yin Wang ◽  
Athanasia Metoki ◽  
Kylie H. Alm ◽  
Ingrid R. Olson
Keyword(s):  
Prefrontal Cortex ◽  
Social Cognition ◽  
White Matter ◽  
Theory Of Mind ◽  
Medial Prefrontal Cortex ◽  
Cingulate Cortex ◽  
Social Neuroscience ◽  
Imaging Data ◽  
Social Brain ◽  
Face Area

AbstractThere is a growing consensus that social cognition and behavior emerge from interactions across distributed regions of the “social brain”. Social neuroscience has traditionally focused its attention on functional response properties of these gray matter networks and neglected the vital role of white matter (WM) connections in establishing such networks and their functions. In this article, we conduct a comprehensive review of prior research on structural connectivity in social neuroscience and highlight the importance of this literature in clarifying brain mechanisms of social cognition. We pay particular attention to the research on three key social processes: face processing, embodied cognition, and theory of mind, and their respective underlying neural networks. To fully identify and characterize the anatomical architecture of these networks, we further implement probabilistic tractography on a large sample of diffusion-weighted imaging data. The combination of an in-depth literature review and the empirical investigation gives us an unprecedented, well-defined landscape of WM pathways underlying major social brain networks. Finally, we discuss current problems in the field, outline suggestions for best practice in diffusion imaging data collection and analysis, and offer new directions for future research.AbbreviationsACCanterior cingulate cortexADaxial diffusivityAFarcuate fasciculusAIanterior insulaALSamyotrophic lateral sclerosisAMGamygdalaASDautism spectrum disordersATLanterior temporal lobeATRanterior thalamic radiationCCcorpus callosumCINGcingulum bundleCSTcortico-spinal tractDESdirect electrical stimulationdMPFCdorsal medial prefrontal cortexdMRIdiffusion-weighted MRIDPdevelopmental prosopagnosiaDTIdiffusion tensor imagingFAfractional anisotropyFFAfusiform face areaIFGinferior frontal gyrusIFOFinferior fronto-occipital fasciculusILFinferior longitudinal fasciculusIPLinferior parietal lobeMCImild cognitive impairmentMDmean diffusivityMPFCmedial prefrontal cortexMSmultiple sclerosisOFAoccipital face areaOFCorbitofrontal cortex face patchPCCposterior cingulate cortexPDParkinson’s diseasePPprogressive prosopagnosiaPreCprecuneusRDradial diffusivityROIregion-of-interestsMRIstructural MRISTSsuperior temporal sulcusTBSStract-based spatial statisticsToMTheory of MindTPJtemporo-parietal junctionUFuncinate fasciculusVBMvoxel based morphometryvMPFCventral medial prefrontal cortexWMwhite matter

scholarly journals Microstructural Integrity of White Matter Moderates an Association Between Childhood Adversity and Adult Trait Anger

2018 ◽  
Author(s):  
M. Justin Kim ◽  
Maxwell L. Elliott ◽  
Tracy C. d’Arbeloff ◽  
Annchen R. Knodt ◽  
Spenser R. Radtke ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Individual Differences ◽  
White Matter ◽  
Negative Emotion ◽  
Childhood Adversity ◽  
Trait Anger ◽  
Uncinate Fasciculus ◽  
Imaging Data ◽  
Wide Range ◽  
Microstructural Integrity

AbstractAmongst a number of negative life sequelae associated with childhood adversity is the later expression of a higher dispositional tendency to experience anger and frustration to a wide range of situations (i.e., trait anger). We recently reported that an association between childhood adversity and trait anger is moderated by individual differences in both threat-related amygdala activity and executive control-related dorsolateral prefrontal cortex (dlPFC) activity, wherein individuals with relatively low amygdala and high dlPFC activity do not express higher trait anger even when having experienced childhood adversity. Here, we examine possible structural correlates of this functional dynamic using diffusion magnetic resonance imaging data from 647 young adult men and women volunteers. Specifically, we tested whether the degree of white matter microstructural integrity as indexed by fractional anisotropy modulated the association between childhood adversity and trait anger. Our analyses revealed that higher microstructural integrity of multiple pathways was associated with an attenuated link between childhood adversity and adult trait anger. Amongst these pathways was the uncinate fasciculus, which not only provides a major anatomical link between the amygdala and prefrontal cortex but also is associated with individual differences in regulating negative emotion through top-down cognitive reappraisal. These findings suggest that higher microstructural integrity of distributed white matter pathways including but not limited to the uncinate fasciculus may represent an anatomical foundation serving to buffer against the expression of childhood adversity as later trait anger, which is itself associated with multiple negative health outcomes.

scholarly journals Representation, Control, or Reasoning? Distinct Functions for Theory of Mind within the Medial Prefrontal Cortex

2014 ◽  
Vol 26 (4) ◽  
pp. 683-698 ◽  
Author(s):  
Charlotte E. Hartwright ◽  
Ian A. Apperly ◽  
Peter C. Hansen
Keyword(s):  
Prefrontal Cortex ◽  
Theory Of Mind ◽  
Cognitive Control ◽  
Medial Prefrontal Cortex ◽  
Mental States ◽  
Cortical Region ◽  
Behavioral Task ◽  
Medial Pfc ◽  
Different Parts

The medial pFC (mPFC) is frequently reported to play a central role in Theory of Mind (ToM). However, the contribution of this large cortical region in ToM is not well understood. Combining a novel behavioral task with fMRI, we sought to demonstrate functional divisions between dorsal and rostral mPFC. All conditions of the task required the representation of mental states (beliefs and desires). The level of demands on cognitive control (high vs. low) and the nature of the demands on reasoning (deductive vs. abductive) were varied orthogonally between conditions. Activation in dorsal mPFC was modulated by the need for control, whereas rostral mPFC was modulated by reasoning demands. These findings fit with previously suggested domain-general functions for different parts of mPFC and suggest that these functions are recruited selectively in the service of ToM.

Inhibiting the posterior medial prefrontal cortex by rTMS decreases the discrepancy between self and other in Theory of Mind reasoning

2014 ◽  
Vol 274 ◽  
pp. 312-318 ◽  
Author(s):  
Tobias Schuwerk ◽  
Martin Schecklmann ◽  
Berthold Langguth ◽  
Katrin Döhnel ◽  
Beate Sodian ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Theory Of Mind ◽  
Medial Prefrontal Cortex ◽  
Self And Other

scholarly journals Blunted neural response to anticipation, effort and consummation of reward and aversion in adolescents with depression symptomatology

2017 ◽  
Vol 31 (3) ◽  
pp. 303-311 ◽  
Author(s):  
Ewelina Rzepa ◽  
Jennifer Fisk ◽  
Ciara McCabe
Keyword(s):  
Prefrontal Cortex ◽  
High Risk ◽  
Medial Prefrontal Cortex ◽  
Risk Group ◽  
Cingulate Cortex ◽  
High Risk Group ◽  
Regions Of Interest ◽  
Whole Brain ◽  
Ventral Medial Prefrontal Cortex ◽  
Reduced Activity

Neural reward function has been proposed as a possible biomarker for depression. However, how the neural response to reward and aversion might differ in young adolescents with current symptoms of depression is as yet unclear. Thirty-three adolescents were recruited, 17 scoring low on the Mood and Feelings Questionnaire (low risk group) and 16 scoring high (high risk group). Our functional magnetic resonance imaging task measured; anticipation (pleasant/unpleasant cue), effort (achieve a pleasant taste or avoid an unpleasant taste) and consummation (pleasant/unpleasant tastes) in regions of interest; ventral medial prefrontal cortex, pregenual cingulate cortex, the insula and ventral striatum. We also examined whole brain group differences. In the regions of interest analysis we found reduced activity in the high risk group in the pregenual cingulate cortex during anticipation and reduced pregenual cingulate cortex and ventral medial prefrontal cortex during effort and consummation. In the whole brain analysis we also found reduced activity in the high risk group in the prefrontal cortex and the precuneus during anticipation. We found reduced activity in the hippocampus during the effort phase and in the anterior cingulate/frontal pole during consummation in the high risk group. Increased anhedonia measures correlated with decreased pregenual cingulate cortex activity during consummation in the high risk group only. Our results are the first to show that adolescents with depression symptoms have blunted neural responses during the anticipation, effort and consummation of rewarding and aversive stimuli. This study suggests that interventions in young people at risk of depression, that can reverse blunted responses, might be beneficial as preventative strategies.

Social by Default: Characterizing the Social Functions of the Resting Brain

2019 ◽  
Vol 28 (4) ◽  
pp. 380-386 ◽  
Author(s):  
Meghan L. Meyer
Keyword(s):  
Social Cognition ◽  
Cognitive Neuroscience ◽  
Brain Regions ◽  
Social Neuroscience ◽  
Future Research ◽  
Default Network ◽  
Social Brain ◽  
Social Functions ◽  
Neuroscience Research ◽  
The Social

Social-neuroscience research has identified a set of medial frontoparietal brain regions that reliably engage during social cognition. At the same time, cognitive-neuroscience research has shown that these regions comprise part of the default network, so named because they reliably activate during mental breaks by default. Although the anatomical similarity between the social brain and the default brain is well documented, why this overlap exists remains a mystery. Does the tendency to engage these regions by default during rest have particular social functions, and if so, what might these be? Here, it is suggested that the default network performs two critical social functions during rest: social priming and social consolidation. These constructs will be defined, recently published empirical findings that support them will be reviewed, and directions for future research on the topic will be proposed.

Cortical and subcortical changes in resting-state functional connectivity before and during an episode of postoperative delirium

2019 ◽  
Vol 53 (8) ◽  
pp. 794-806 ◽  
Author(s):  
Jooyoung Oh ◽  
Jung Eun Shin ◽  
Kyu Hyun Yang ◽  
Sunghyon Kyeong ◽  
Woo Suk Lee ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Medial Prefrontal Cortex ◽  
Default Mode Network ◽  
Resting State ◽  
Postoperative Delirium ◽  
Cingulate Cortex ◽  
Posterior Cingulate Cortex ◽  
Default Mode ◽  
Posterior Cingulate ◽  
Subcortical Regions

Objective: Delirium is an acute brain failure related to uncertain problems in neural connectivity, including aberrant functional interactions between remote cortical regions. This study aimed to elucidate the underlying neural mechanisms of delirium by clarifying the changes in resting-state functional connectivity induced by postoperative delirium using imaging data scanned before and after surgery. Method: Fifty-eight patients with a femoral neck fracture were preoperatively scanned using resting-state functional magnetic resonance imaging. Twenty-five patients developed postoperative delirium, and 14 of those had follow-up scans during delirium. Eighteen patients without delirium completed follow-up scans 5 or 6 days after surgery. We assessed group differences in voxel-based connectivity, in which the seeds were the posterior cingulate cortex, medial prefrontal cortex and 11 subcortical regions. Connections between the subcortical regions were also examined. Results: The results showed four major findings during delirium. Both the posterior cingulate cortex and medial prefrontal cortex were strongly connected to the dorsolateral prefrontal cortex. The posterior cingulate cortex had hyperconnectivity with the inferior parietal lobule, whereas the medial prefrontal cortex had hyperconnectivity with the frontopolar cortex and hypoconnectivity with the superior frontal gyrus. Connectivity of the striatum with the anterior cingulate cortex and insula was increased. Disconnections were found between the lower subcortical regions including the neurotransmitter origins and the striatum/thalamus in the upper level. Conclusions: Our findings suggest that cortical dysfunction during delirium is characterized by a diminution of the anticorrelation between the default mode network and task-positive regions, excessive internal connections in the posterior default mode network and a complex imbalance of internal connectivity in the anterior default mode network. These dysfunctions can be attributed to the loss of reciprocity between the default mode network and central executive network associated with defective function in the salience network, which might be closely linked to aberrant subcortical neurotransmission-related connectivity and striato-cortical connectivity.

scholarly journals Interaction of irritability and anxiety on emotional responding and emotion regulation: a functional MRI study

2020 ◽  
pp. 1-11
Author(s):  
Kathleen I. Crum ◽  
Soonjo Hwang ◽  
Karina S. Blair ◽  
Joseph M. Aloi ◽  
Harma Meffert ◽  
...  
Keyword(s):  
Emotion Regulation ◽  
Prefrontal Cortex ◽  
Anterior Cingulate Cortex ◽  
Emotional Disorders ◽  
Medial Prefrontal Cortex ◽  
Cingulate Cortex ◽  
Task Demands ◽  
Anterior Cingulate ◽  
Reactivity Index ◽  
Emotional States

Abstract Background Irritability and anxiety frequently co-occur in pediatric populations. Studies separately looking at the neural correlates of these symptoms have identified engagement of similar neural systems – particularly those implicated in emotional processing. Both irritability and anxiety can be considered negative valence emotional states that might relate to emotion dysregulation. However, previous work has not examined the neural responding during the performance of an emotion regulation task as a function of interaction between irritability and anxiety simultaneously. Methods This fMRI study involved 155 participants (90 with significant psychopathologies and 92 male) who performed the Affective Stroop Task, designed to engage emotion regulation as a function of task demands. The Affective Reactivity Index (ARI) was used to index irritability and the Screen for Child Anxiety Related Emotional Disorders (SCARED) was used to index anxiety. Results Levels of irritability, but not anxiety, was positively correlated with responses to visual images within the right rostro-medial prefrontal cortex and left anterior cingulate cortex during view trials. The second region of ventral anterior cingulate cortex showed a condition-by-emotion-by-ARI score-by-SCARED score interaction. Specifically, anxiety level was significantly correlated with a decreased differential BOLD response to negative relative to neutral view trials but only in the presence of relatively high irritability. Conclusions Atypical maintenance of emotional stimuli within the rostro-medial prefrontal cortex may exacerbate the difficulties faced by adolescents with irritability. Moreover, increased anxiety combined with significant irritability may disrupt an automatic emotional conflict-based form of emotion regulation that is particularly associated with the ventral anterior cingulate cortex.

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