82 results match your criteria: "National University of Cuyo (UNCuyo)[Affiliation]"

Editorial: Transcription regulation - Brain development and homeostasis - A finely tuned and orchestrated scenario in physiology and pathology, volume II.

Front Mol Neurosci

September 2023

Department of Pathology and Laboratory Medicine, Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children of Northern California, and MIND Institute at the UC Davis Medical Center, University of California Davis School of Medicine, Sacramento, CA, United States.

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Protective effects of Yerba mate (IIex paraguariensis) on prostate cancer development.

Nutrition

April 2023

Laboratory of Hormones and Cancer Biology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National University of Cuyo (UNCuyo), National Council for Scientific and Technical Research (CONICET), Mendoza, Argentina.

Objectives: Prostate cancer (PCa) is the most common adenocarcinoma in men >50 y of age. It has a long latency period, which provides time for preventive strategies like incorporating healthy eating habits. Yerba mate (YM) intake has been associated with numerous health benefits.

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Decoding motor expertise from fine-tuned oscillatory network organization.

Hum Brain Mapp

June 2022

National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina.

Can motor expertise be robustly predicted by the organization of frequency-specific oscillatory brain networks? To answer this question, we recorded high-density electroencephalography (EEG) in expert Tango dancers and naïves while viewing and judging the correctness of Tango-specific movements and during resting. We calculated task-related and resting-state connectivity at different frequency-bands capturing task performance (delta [δ], 1.5-4 Hz), error monitoring (theta [θ], 4-8 Hz), and sensorimotor experience (mu [μ], 8-13 Hz), and derived topographical features using graph analysis.

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Editorial: Transcription Regulation-Brain Development and Homeostasis-A Finely Tuned and Orchestrated Scenario in Physiology and Pathology.

Front Mol Neurosci

January 2022

Department of Pathology and Laboratory Medicine, UC Davis School of Medicine, Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children of Northern California, and MIND Institute at the UC Davis Medical Center, Sacramento, CA, United States.

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Wild species related to cultivated tomato are essential genetic resources in breeding programs focused on food security to face future challenges. The ecogeographic analysis allows identifying the species adaptive ranges and most relevant environmental variables explaining their patterns of actual distribution. The objective of this research was to identify the diversity, ecological descriptors, and statistical relationship of 35 edaphoclimatic variables (20 climatic, 1 geographic and 14 edaphic variables) from 4,649 accessions of 12 wild tomato species and 4 closely related species classified in sect Lycopersicon and clustered into four phylogenetic groups, namely "Lycopersicon group" (, , and ), "Arcanum group" (S, , and ), "Eriopersicon group" (, , , , and ), "Neolycopersicon group" (); and two phylogenetically related groups in sect.

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Behavioral embodied research shows that words evoking limb-specific meanings can affect responses performed with the corresponding body part. However, no study has explored this phenomenon's neural dynamics under implicit processing conditions, let alone by disentangling its conceptual and motoric stages. Here, we examined whether the blending of hand actions and manual action verbs, relative to nonmanual action verbs and nonaction verbs, modulates electrophysiological markers of semantic integration (N400) and motor-related cortical potentials during a lexical decision task.

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Impairments of action semantics (a cognitive domain that critically engages motor brain networks) are pervasive in early Parkinson's disease (PD). However, no study has examined whether action semantic skills in persons with this disease can be influenced by non-invasive neuromodulation. Here, we recruited 22 PD patients and performed a five-day randomized, blinded, sham-controlled study to assess whether anodal transcranial direct current stimulation (atDCS) over the primary motor cortex, combined with cognitive training, can boost action-concept processing.

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Empathy deficits and their behavioral, neuroanatomical, and functional connectivity correlates in smoked cocaine users.

Prog Neuropsychopharmacol Biol Psychiatry

August 2021

National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina; Cognitive Neuroscience Center (CNC), Universidad de San Andrés, Buenos Aires, Argentina; Latin American Brain Health Institute (BrainLat), Universidad Adolfo Ibáñez, Santiago, Chile; Global Brain Health Institute (GBHI), University of California San Francisco (UCSF), USA; and Trinity College Dublin (TCD), Ireland. Electronic address:

Reduced empathic abilities are frequently observed in drug abusers. These deficits may compromise interpersonal interactions and contribute to diminished social functioning. However, previous evidence regarding empathy and addiction is behaviorally unspecific and virtually null in terms of their brain structural or functional correlates.

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Multimodal neurocognitive markers of frontal lobe epilepsy: Insights from ecological text processing.

Neuroimage

July 2021

Global Brain Health Institute, UCSF, California, US, & Trinity College Dublin, Dublin, Ireland; University of San Andres, Buenos Aires, Argentina; National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina; Faculty of Education, National University of Cuyo (UNCuyo), Mendoza, Argentina; Departamento de Lingüística y Literatura, Facultad de Humanidades, Universidad de Santiago de Chile, Santiago, Chile. Electronic address:

The pressing call to detect sensitive cognitive markers of frontal lobe epilepsy (FLE) remains poorly addressed. Standard frameworks prove nosologically unspecific (as they reveal deficits that also emerge across other epilepsy subtypes), possess low ecological validity, and are rarely supported by multimodal neuroimaging assessments. To bridge these gaps, we examined naturalistic action and non-action text comprehension, combined with structural and functional connectivity measures, in 19 FLE patients, 19 healthy controls, and 20 posterior cortex epilepsy (PCE) patients.

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Dementia in Latin America: Paving the way toward a regional action plan.

Alzheimers Dement

February 2021

Cognitive Neuroscience Center (CNC) Buenos Aires, Argentina; Universidad Autonoma del Caribe, Barranquilla, Colombia; Global Brain Health Institute (GBHI), US, Universidad de San Andres, CONICET, Universidad Autonoma del Caribe, Universidad Adolfo Ibanez, UCSF, USA.

Article Synopsis
  • Many countries in Latin America and the Caribbean are struggling to fight dementia due to differences in culture, politics, and wealth.
  • A group called the Latin American and Caribbean Consortium on Dementia (LAC-CD) wants to bring people together to share ideas and create a plan called Knowledge to Action Framework (KtAF) to help solve these issues.
  • They discuss strategies like research and teamwork that can turn local knowledge into real actions to better support people with dementia in these regions.
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Frontostriatal disorders, such as Parkinson's disease (PD), are characterized by progressive disruption of cortico-subcortical dopaminergic loops involved in diverse higher-order domains, including language. Indeed, syntactic and emotional language tasks have emerged as potential biomarkers of frontostriatal disturbances. However, relevant studies and models have typically considered these linguistic dimensions in isolation, overlooking the potential advantages of targeting multidimensional markers.

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An accruing body of research has shown that interoception (the sensing of signals from the body's internal milieu) relies on both a direct route (afforded by the vagus nerve) and a secondary route (supported by somatosensory mechanisms). However, no study has causally tested the differential role of these pathways, let alone via direct stimulation. To bridge this gap, we tested whether multidimensional signatures of interoception are modulated by noninvasive vagus nerve stimulation (nVNS).

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Dynamic brain fluctuations outperform connectivity measures and mirror pathophysiological profiles across dementia subtypes: A multicenter study.

Neuroimage

January 2021

Global Brain Health Institute (GBHI), University of California San Francisco (UCSF), California, US; & Trinity College Dublin, Dublin, Ireland; National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina; Universidad de San Andrés, Buenos Aires, Argentina; Universidad Autónoma del Caribe, Barranquilla, Colombia; Center for Social and Cognitive Neuroscience (CSCN), School of Psychology, Universidad Adolfo Ibáñez, Santiago de Chile, Chile. Electronic address:

From molecular mechanisms to global brain networks, atypical fluctuations are the hallmark of neurodegeneration. Yet, traditional fMRI research on resting-state networks (RSNs) has favored static and average connectivity methods, which by overlooking the fluctuation dynamics triggered by neurodegeneration, have yielded inconsistent results. The present multicenter study introduces a data-driven machine learning pipeline based on dynamic connectivity fluctuation analysis (DCFA) on RS-fMRI data from 300 participants belonging to three groups: behavioral variant frontotemporal dementia (bvFTD) patients, Alzheimer's disease (AD) patients, and healthy controls.

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From discourse to pathology: Automatic identification of Parkinson's disease patients via morphological measures across three languages.

Cortex

November 2020

National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina; Departamento de Lingüística y Literatura, Facultad de Humanidades, Universidad de Santiago de Chile, Santiago, Chile; Universidad de San Andrés, Buenos Aires, Argentina; Global Brain Health Institute, University of California, San Francisco, United States; Faculty of Education, National University of Cuyo (UNCuyo), Mendoza, Argentina. Electronic address:

Embodied cognition research on Parkinson's disease (PD) points to disruptions of frontostriatal language functions as sensitive targets for clinical assessment. However, no existing approach has been tested for crosslinguistic validity, let alone by combining naturalistic tasks with machine-learning tools. To address these issues, we conducted the first classifier-based examination of morphological processing (a core frontostriatal function) in spontaneous monologues from PD patients across three typologically different languages.

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Dynamic neurocognitive changes in interoception after heart transplant.

Brain Commun

July 2020

National Scientific and Technical Research Council (CONICET), Buenos Aires C1126AAB, Argentina.

Heart-brain integration dynamics are critical for interoception (i.e. the sensing of body signals).

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Multicentric evidence of emotional impairments in hypertensive heart disease.

Sci Rep

August 2020

National Scientific and Technical Research Council (CONICET), Pacheco de Melo 1860, C1126AAB, Buenos Aires, Argentina.

The mechanisms underlying emotional alterations constitute a key research target in neuroscience. Emerging evidence indicates that these disruptions can be related to abnormal interoception (i.e.

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How words ripple through bilingual hands: Motor-language coupling during L1 and L2 writing.

Neuropsychologia

September 2020

National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina; Universidad de San Andrés, Buenos Aires, Argentina; Global Brain Health Institute, University of San Francisco, California, United States; Faculty of Education, National University of Cuyo (UNCuyo), Mendoza, Argentina; Departamento de Lingüística y Literatura, Facultad de Humanidades, Universidad de Santiago de Chile, Santiago, Chile. Electronic address:

The speed of our hand movements can be affected by concurrent processing of manual action verbs (MaVs). Whereas this phenomenon is well established for native languages (L1s), it remains underexplored in late foreign languages (L2s), especially during highly automatized tasks. Here we timed keystroke activity while Spanish-English bilinguals copied MaVs, non-manual action verbs, and non-action verbs in their L1 and L2.

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Neurocognitive signatures of phonemic sequencing in expert backward speakers.

Sci Rep

June 2020

Universidad de San Andrés, Vito Dumas 284, B1644BID Victoria, Buenos Aires, Argentina.

Despite its prolific growth, neurolinguistic research on phonemic sequencing has largely neglected the study of individuals with highly developed skills in this domain. To bridge this gap, we report multidimensional signatures of two experts in backward speech, that is, the capacity to produce utterances by reversing the order of phonemes while retaining their identity. Our approach included behavioral assessments of backward and forward speech alongside neuroimaging measures of voxel-based morphometry, diffusion tensor imaging, and resting-state functional connectivity.

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In construing meaning, the brain recruits multimodal (conceptual) systems and embodied (modality-specific) mechanisms. Yet, no consensus exists on how crucial the latter are for the inception of semantic distinctions. To address this issue, we combined electroencephalographic (EEG) and intracranial EEG (iEEG) to examine when nouns denoting facial body parts (FBPs) and nonFBPs are discriminated in face-processing and multimodal networks.

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Semantic and attentional networks in bilingual processing: fMRI connectivity signatures of translation directionality.

Brain Cogn

August 2020

Universidad de San Andrés, Buenos Aires, Argentina; National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina; Faculty of Education, National University of Cuyo (UNCuyo), Mendoza, Argentina; Departamento de Lingüística y Literatura, Facultad de Humanidades, Universidad de Santiago de Chile, Santiago, Chile. Electronic address:

Comparisons between backward and forward translation (BT, FT) have long illuminated the organization of bilingual memory, with neuroscientific evidence indicating that FT would involve greater linguistic and attentional demands. However, no study has directly assessed the functional interaction between relevant mechanisms. Against this background, we conducted the first fMRI investigation of functional connectivity (FC) differences between BT and FT.

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Pregnancy and puerperium are typified by marked biobehavioral changes. These changes, which are traceable in both mothers and fathers, play an important role in parenthood and may modulate social cognition abilities. However, the latter effects remain notably unexplored in parents of newborns (PNs).

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Ex-combatants often exhibit atypical Emotional Processing (EP) such as reduced emphatic levels and higher aggressive attitudes. Social Cognitive Training (SCT) addressing socio-emotional components powerfully improve social interaction among Colombian ex-combatants. However, with narrow neural evidence, this study offers a new testimony.

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A multidimensional and multi-feature framework for cardiac interoception.

Neuroimage

May 2020

Laboratory of Experimental Psychology and Neuroscience (LPEN), Institute of Cognitive and Translational Neuroscience (INCYT), INECO Foundation, Favaloro University, Buenos Aires, Argentina; National Scientific and Technical Research Council (CONICET), Argentina; Center for Social and Cognitive Neuroscience (CSCN), School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile; Universidad Autónoma Del Caribe, Barranquilla, Colombia; ARC Excellence Center of Cognition and its Disorders, Sydney, Australia. Electronic address:

Interoception (the sensing of inner-body signals) is a multi-faceted construct with major relevance for basic and clinical neuroscience research. However, the neurocognitive signatures of this domain (cutting across behavioral, electrophysiological, and fMRI connectivity levels) are rarely reported in convergent or systematic fashion. Additionally, various controversies in the field might reflect the caveats of standard interoceptive accuracy (IA) indexes, mainly based on heartbeat detection (HBD) tasks.

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