Gesa Hartwigsen

Executive and language systems competitively shape predictive processing during reading

This study shows that predictive language processing during reading relies on executive resources, especially under cognitive load, and is dynamically coupled with working memory.

Changes in Neural Dynamics of Brain Activity and Connectivity Independently Predict Post-Stroke Aphasia Recovery

The paper identifies phase-specific neural predictors of post-stroke aphasia recovery using task-related activity and connectivity, highlighting multiple-demand and inferior frontal regions as potential targets.

Beyond dual hubs: Task and aging shape taxonomic and thematic semantic relationships in the human brain

This study investigates how task and aging affect semantic processing in the brain, finding that both TPC and ATL respond preferentially to thematic relationships and that aging leads to shifts in semantic control and processing.

Linguistic information compensates for age-related decline in attentional filtering

This study shows older adults compensate for age-related attentional filtering deficits by relying more on linguistic information during speech comprehension in multitalker situations.

Cortical Stimulation Strength and sgACC Connectivity Shape Neuro-Cardiac Responses to Prefrontal TMS

This study shows that cortical electric-field strength and connectivity to the subgenual anterior cingulate cortex better predict neuro-cardiac responses to prefrontal TMS than conventional motor-threshold-based dosing.

Temporo-Occipital and Medial Temporal Networks Underlying Object-Location Learning

This study identifies functional brain networks involved in object-location learning using fMRI and shows how connectivity within these networks changes with learning performance.

Target-Specificity and Repeatability in Neuro-Cardiac-Guided TMS for Heart-Brain Coupling

This study examines how TMS targeting the DLPFC affects heart-brain coupling, finding non-linear effects based on stimulation intensity and target location.

Harmonizing the stimulation dose of focal tDCS across target sites

This paper develops a computational framework to standardize tDCS stimulation doses across brain regions while preserving individual variability, validated in an independent sample.

Effects of Electric Field Direction on TMS-based Motor Cortex Mapping

This study evaluates three TMS models for motor cortex mapping, finding that the magnitude and neuron models perform similarly, while the cosine model is less effective and requires more trials.

Assessing adverse effects and unspecific effects of transcutaneous spinal direct current stimulation (tsDCS)

This study investigates adverse and unspecific effects of tsDCS in healthy volunteers using subjective reports and physiological measurements, finding minimal differences between active and sham conditions.

A novel approach to map the causal impact of brain stimulation on semantic processing with language models

This paper uses language models to analyze TMS effects on semantic processing at the word level, finding stimulation impacts vary with word meaning and other linguistic features.

Attentional engagement with target and distractor streams predicts speech comprehension in multitalker environments

This study shows that neural tracking of attended speech features predicts comprehension, while ignored stream tracking correlates with performance in multitalker environments.

Causal Contributions of Left Inferior and Medial Frontal Cortex to Semantic and Executive Control

This study uses TMS to investigate the roles of left IFG and pre-SMA in semantic and executive control, finding shared and distinct contributions to cognitive tasks.

Cognitive-Perceptual Style on the Autism-Schizotypy Continuum Shapes Surprisal Sensitivity

The paper examines how cognitive-perceptual styles along the Autism-Schizotypy Continuum affect sensitivity to lexical surprisal during reading across the lifespan.

Hindering memory suppression by perturbing the right dorsolateral prefrontal cortex

This study investigates the role of the right dorsolateral prefrontal cortex in memory suppression using rTMS, finding reduced suppression success with dlPFC stimulation compared to a control site.

Semantic integration demands modulate large-scale network interactions in the brain

This study investigates how semantic integration demands affect brain network interactions across the lifespan using fMRI and behavioral data.

Executive Resources Shape the Impact of Language Predictability Across the Adult Lifespan

This study shows that language predictability affects reading time more when executive resources are limited, and this effect increases with age.

Electric field based dosing for TMS

This paper explores electric field-based dosing for transcranial magnetic stimulation (TMS) to reduce variability in cortical stimulation and discusses challenges and future directions.

Bayesian modeling disentangles language versus executive control disruption in stroke

This study uses Bayesian modeling to analyze stroke patient data and identifies distinct brain regions associated with language and executive control impairments.

Modeling the Effects of Transcranial Magnetic Stimulation on Spatial Attention

This study investigates how transcranial magnetic stimulation affects spatial attention using biophysical modeling and fMRI, finding limited correlation between electric fields and behavior but selective attentional inhibition in some subjects.

Conceptual representations in the default, control and attention networks are task-dependent and cross-modal

The paper investigates how conceptual representations in brain networks are modulated by task and modality, finding they are task-dependent and cross-modal.

Cortical Adaptation Mechanism in the Delta Band of Post-Stroke Aphasic subjects during Naming Task

This study identifies delta band oscillations in post-stroke aphasia patients during naming tasks, suggesting a cortical adaptation mechanism that may inform non-invasive brain stimulation rehabilitation.

Investigating Spatiotemporal Dynamics of Cortical Activity During Language Production in the Healthy and Lesioned Brain

This study examines spatiotemporal cortical dynamics during language production in individuals with aphasia and healthy controls, finding differences in traveling wave patterns and synchronization.

Bayesian stroke modeling details sex biases in the white matter substrates of aphasia

The paper models sex differences in white matter substrates of aphasia using Bayesian analysis in 1,401 stroke patients, identifying sex-specific lesion effects in language networks.

Meta-analytic evidence for a novel hierarchical model of conceptual processing

The paper uses ALE meta-analysis to show conceptual processing engages modality-specific and multimodal brain regions, supporting a hierarchical model of conceptual processing.

Towards a causal role of Broca's area in language: A TMS-EEG study on syntactic prediction

This study uses TMS-EEG to test if Broca's area is involved in syntactic prediction, but finds no effect on ERP correlates of basic phrase composition.

Facilitatory stimulation of the pre-SMA enhances semantic cognition via remote network effects on task-based activity and connectivity

This study shows that stimulating the pre-SMA with iTBS enhances semantic processing by altering network activity and connectivity in healthy older adults.

Age-related reorganization of functional network architecture in semantic cognition

This study examines age-related changes in functional brain network architecture during semantic word retrieval, finding increased coupling, reduced segregation, and more hubs in older adults despite intact semantic abilities.

Age-related differences in the neural network interactions underlying the predictability gain

The paper investigates age-related differences in neural network interactions during speech comprehension under degraded conditions and finds preserved predictability gain in older adults with adjusted stimulus intelligibility.

The role of the angular gyrus in semantic cognition - A synthesis of five functional neuroimaging studies

This paper synthesizes five fMRI studies to examine the role of the angular gyrus in semantic cognition, finding consistent deactivation during non-semantic tasks and task-specific activation patterns.