scholarly journals Hemispheric specialization within the inferior parietal lobe across cognitive domains

2020 ◽  
Author(s):  
Ole Numssen ◽  
Danilo Bzdok ◽  
Gesa Hartwigsen
Keyword(s):  
Social Cognitive ◽  
Parietal Lobe ◽  
Effective Connectivity ◽  
Hemispheric Specialization ◽  
Cognitive Domains ◽  
Inferior Parietal Lobe ◽  
Task Specificity ◽  
Domain Specific ◽  
Human Interactions ◽  
Multivariate Pattern

AbstractThe inferior parietal lobe (IPL) is a key neural substrate underlying diverse mental processes, from basic attention to language and social cognition that define human interactions. Its putative domain-global role appears to tie into poorly understood functional differences between both hemispheres. Across attentional, semantic, and social cognitive experiments, our study explored hemispheric specialization within the IPL. The task specificity of IPL subregion activity was substantiated by distinct predictive signatures identified by multivariate pattern-learning algorithms. Moreover, the left and right IPL exerted domain-specific modulation of effective connectivity among their subregions. Task-evoked functional interactions of the anterior and posterior IPL subregions involved recruitment of distributed cortical partners. While each anterior IPL subregion was engaged in strongly lateralized coupling links, both posterior subregions showed more symmetric coupling patterns across hemispheres. Our collective results shed light on how under-appreciated lateralization effects within the IPL support some of the most distinctive human mental capacities.

scholarly journals Functional specialization within the inferior parietal lobes across cognitive domains

eLife ◽  
2021 ◽  
Vol 10 ◽  
Author(s):  
Ole Numssen ◽  
Danilo Bzdok ◽  
Gesa Hartwigsen
Keyword(s):  
Social Cognitive ◽  
Parietal Lobe ◽  
Effective Connectivity ◽  
Functional Specialization ◽  
Cognitive Domains ◽  
Task Specificity ◽  
Domain Specific ◽  
Human Interactions ◽  
Parietal Lobes ◽  
Multivariate Pattern

The inferior parietal lobe (IPL) is a key neural substrate underlying diverse mental processes, from basic attention to language and social cognition, that define human interactions. Its putative domain-global role appears to tie into poorly understood differences between cognitive domains in both hemispheres. Across attentional, semantic, and social cognitive tasks, our study explored functional specialization within the IPL. The task specificity of IPL subregion activity was substantiated by distinct predictive signatures identified by multivariate pattern-learning algorithms. Moreover, the left and right IPL exerted domain-specific modulation of effective connectivity among their subregions. Task-evoked functional interactions of the anterior and posterior IPL subregions involved recruitment of distributed cortical partners. While anterior IPL subregions were engaged in strongly lateralized coupling links, both posterior subregions showed more symmetric coupling patterns across hemispheres. Our collective results shed light on how under-appreciated functional specialization in the IPL supports some of the most distinctive human mental capacities.

scholarly journals Multivariate Patterns of Posterior Cortical Activity Differentiate Forms of Emotional Distancing

2019 ◽  
Vol 30 (5) ◽  
pp. 2766-2776 ◽  
Author(s):  
John P Powers ◽  
John L Graner ◽  
Kevin S LaBar
Keyword(s):  
Emotion Regulation ◽  
Emotion Dysregulation ◽  
Social Cognitive ◽  
Parietal Lobe ◽  
Brain Activity ◽  
Cortical Activation ◽  
Cortical Regions ◽  
Multivariate Pattern ◽  
Conjunction Analysis ◽  
Emotional Distancing

Abstract Distancing is an effective tactic for emotion regulation, which can take several forms depending on the type(s) of psychological distance being manipulated to modify affect. We recently proposed a neurocognitive model of emotional distancing, but it is unknown how its specific forms are instantiated in the brain. Here, we presented healthy young adults (N = 34) with aversive pictures during functional magnetic resonance imaging to directly compare behavioral performance and brain activity across spatial, temporal, and objective forms of distancing. We found emotion regulation performance to be largely comparable across these forms. A conjunction analysis of activity associated with these forms yielded a high degree of overlap, encompassing regions of the default mode and frontoparietal networks as predicted by our model. A multivariate pattern classification further revealed distributed patches of posterior cortical activation that discriminated each form from one another. These findings not only confirm aspects of our overarching model but also elucidate a novel role for cortical regions in and around the parietal lobe in selectively supporting spatial, temporal, and social cognitive processes to distance oneself from an emotional encounter. These regions may provide new targets for brain-based interventions for emotion dysregulation.

scholarly journals Resting State Effective Connectivity between Inferior Parietal Lobe (IPL) and Inferior Temporal Gyrus (ITG) in the Left and Right Hemispheres

2018 ◽  
Vol 16 (02) ◽  
pp. 101-111 ◽  
Author(s):  
AHMAD NAZLIM YUSOFF ◽  
KHAIRIAH ABDUL HAMID ◽  
SAEMAH RAHMAN ◽  
SYAZARINA SHARIS OSMAN ◽  
SHAHLAN SURAT ◽  
...  
Keyword(s):  
Resting State ◽  
Parietal Lobe ◽  
Effective Connectivity ◽  
Inferior Parietal Lobe ◽  
Inferior Temporal Gyrus ◽  
Left And Right

Cortical thickness, neuron density and size in the inferior parietal lobe in schizophrenia

2012 ◽  
Vol 136 (1-3) ◽  
pp. 43-50 ◽  
Author(s):  
John F. Smiley ◽  
Kira Konnova ◽  
Cynthia Bleiwas
Keyword(s):  
Cortical Thickness ◽  
Parietal Lobe ◽  
Inferior Parietal Lobe ◽  
Neuron Density

scholarly journals Mediterranean Lifestyle in Relation to Cognitive Health: Results from the HELIAD Study

Nutrients ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1557 ◽  
Author(s):  
Costas Anastasiou ◽  
Mary Yannakoulia ◽  
Meropi Kontogianni ◽  
Mary Kosmidis ◽  
Eirini Mamalaki ◽  
...  
Keyword(s):  
Cognitive Performance ◽  
Population Based ◽  
Lifestyle Factors ◽  
Cognitive Outcomes ◽  
Lifestyle Factor ◽  
Population Based Study ◽  
Cognitive Domains ◽  
Domain Specific ◽  
Z Scores ◽  
Lifestyle Pattern

Many lifestyle factors have been linked to cognitive function but little is known about their combined effect. An overall lifestyle pattern for people living in the Mediterranean basin has been proposed, including diet, but also physical activity, sleep and daily living activities with social/intellectual aspects. We aimed to examine the associations between a combination of these lifestyle factors and detailed cognitive performance. A total of 1716 participants from the Hellenic Longitudinal Investigation of Ageing and Diet (HELIAD), a population-based study of participants ≥65 years, were included in this analysis. Lifestyle factors were evaluated using standard, validated questionnaires and a Total Lifestyle Index (TLI) was constructed. Cognitive outcomes included mild cognitive impairment (MCI) diagnosis, a composite z-score (either continuous or with a threshold at the 25th percentile) and z-scores for five cognitive domains. A higher TLI was associated with 65% reduced odds for MCI in the non-demented individuals and 43% reduced odds for low global cognition when MCI participants were excluded, a risk reduction equivalent to 9 and 2.7 fewer years of ageing, respectively. Each lifestyle factor was differentially associated with domain-specific cognitive performance. Our results suggest that a TLI, more so than single lifestyle parameters, may be related to cognitive performance.

scholarly journals Inferior Parietal Lobe Activity in Visuo-Motor Integration during the Robot Hand Illusion

Psychology ◽  
2018 ◽  
Vol 09 (15) ◽  
pp. 2996-3006
Author(s):  
Mohamad Arif Fahmi Bin Ismail ◽  
Sotaro Shimada
Keyword(s):  
Parietal Lobe ◽  
Robot Hand ◽  
Inferior Parietal Lobe

scholarly journals Are There Gender Differences in Social Cognition in First-Episode Psychosis?

Women ◽  
2021 ◽  
Vol 1 (4) ◽  
pp. 204-211
Author(s):  
Marina Verdaguer-Rodríguez ◽  
Raquel López-Carrilero ◽  
Marta Ferrer-Quintero ◽  
Helena García-Mieres ◽  
Luciana Díaz-Cutraro ◽  
...  
Keyword(s):  
Gender Differences ◽  
Social Cognition ◽  
Attributional Style ◽  
Social Cognitive ◽  
First Episode Psychosis ◽  
Test Theory ◽  
First Episode ◽  
Cognitive Domains ◽  
Episode Psychosis ◽  
The Social

The aim of this study was to explore gender differences in social cognition in a sample of first-episode psychosis (FEP). An observational descriptive study was performed with 191 individuals with FEP. Emotion perception was assessed using the Faces Test, theory of mind was assessed using the Hinting Task, and attributional style was assessed using the Internal, Personal and Situational Attributions Questionnaire. No gender differences were found in any of the social cognitive domains. Our results suggest that men and women with FEP achieve similar performances in social cognition. Therefore, targeting specific needs in social cognition regarding gender may not be required in early interventions for psychosis.

scholarly journals Polarity-specific transcranial direct current stimulation effects on object-selective neural responses in the inferior parietal lobe

Cortex ◽  
2017 ◽  
Vol 94 ◽  
pp. 176-181 ◽  
Author(s):  
Jorge Almeida ◽  
Ana R. Martins ◽  
Fredrik Bergström ◽  
Lénia Amaral ◽  
Andreia Freixo ◽  
...  
Keyword(s):  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
Parietal Lobe ◽  
Neural Responses ◽  
Inferior Parietal Lobe ◽  
Direct Current Stimulation

Stability of Number-Processing Based on Information Granularity Associative with Parietal Cortex

2014 ◽  
Vol 519-520 ◽  
pp. 769-774
Author(s):  
Xiu Zhen Wang ◽  
Ri Feng Wang ◽  
Jian Hui Chen ◽  
Wei Quan Gu ◽  
Yue Gu ◽  
...  
Keyword(s):  
Parietal Lobe ◽  
Number Line ◽  
Information Granularity ◽  
Granule Formation ◽  
Domain Specific ◽  
Knowledge Based ◽  
Unit Structure ◽  
Automatic Information ◽  
Arithmetic System ◽  
Cognitive Arithmetic

Stability, the ability to automatically extract and produce the efficient and accurate results of a defined problem without making epistemic assumptions, is discussed here as a possible memory system for understanding complex cognitive functions of the arithmetical learning. Stability is of top priority because it may typify organization of granule (knowledge-based information unit) structure. Memory efficiencies are that they depend on both linguistic factors and exposure to arithmetic training during granule formation or consolidation, supporting the idea of analog coding of numerical representations. Neuroimaging studies suggest that the parietal lobe as a potential substrate for a domain-specific representation of numeric quantities and associative memory mechanisms in stability, and results from these studies indicate that there may be the organization of number-related processes of stability in the parietal lobe. Stability seems to depend on the automatic information-processing system's response to experiential knowledge combining granularity (degree of detail or precision), maturational constraints, spatial factors (mental number line) and linguistic factors, making it an ideal candidate for understanding how these interactions play out in the cognitive arithmetic system.

Sign in / Sign up

Export Citation Format

Share Document