Hemispheric Asymmetry in Neuroscience

This study uses fNIRS to examine brain lateralization in baboons during motor and auditory stimulations, finding contralateral activation patterns similar to humans.

This study uses mobile EEG to examine emotional processing in romantic couples during real-life interactions, finding hemispheric asymmetries in brain activity during emotional events.

The paper identifies brain areas involved in manual preference by analyzing BOLD variations during finger-tapping in 287 adults balanced for handedness.

The paper evaluates three handedness measures in the Human Connectome Project and finds poor agreement between them, highlighting inconsistencies in handedness assessment.

The paper analyzes structural brain asymmetry in young adults using the Human Connectome Project dataset, finding significant rightward asymmetry in multiple brain regions and a strong correlation between cortical surface area and gray matter volume asymmetry.

This study investigates asymmetric prefrontal cortex activity during dichotic listening tasks and finds that right hemisphere regions show dynamic blood flow changes linked to task performance and auditory processing.

The paper identifies asymmetric reward-related activity in the orbitofrontal cortex of humans and rhesus macaques and links it to functional connectivity asymmetry.

The paper shows that individuals with atypical rightward language lateralization use a different brain organization compared to typical leftward lateralized individuals, characterized by strong interhemispheric connectivity and larger corpus callosum volume.

The paper uses computational modeling and empirical EEG data to show that hemispheric lateralization of brain function arises from dynamic interactions in the structural connectome.

This study identifies 48 genetic variants associated with handedness using a large GWAS, highlighting polygenic nature and genetic links to neuropsychiatric traits.

The paper assesses reproducibility in brain MRI research by re-analyzing hemispheric effects across multiple datasets, finding an average reproducibility rate of 63.2%.

The paper identifies an enhancer locus in 14q23.1 associated with brain asymmetry in regions involved in language processing, using UK Biobank and IMAGEN data.

The paper examines how social environment and genotype affect individual and population-level behavioral asymmetries in Drosophila melanogaster, finding that individual asymmetries are modulated by social context while population asymmetries are not.

This study identifies a cluster of posterior tuberculum neurons in zebrafish larvae that mediate intrinsic motor asymmetry through Notch signaling.

The paper investigates the relationship between hemi-face dominance in emotional expression and cerebral white matter asymmetries in healthy participants.

This paper reviews hippocampal lateralization in rodents and proposes a discrete-continuous hypothesis for spatial memory and navigation.

The paper shows that the Leask and Crow method for analyzing laterality-performance relationships produces artifacts due to nonlinear dependencies, suggesting alternative approaches may be more reliable.

This study examines how resection of white matter tracts in the left hemisphere affects hand selection in patients with brain tumors, finding that frontal and parietal resections alter hand preference without motor or cognitive deficits.

The paper investigates genetic factors influencing planum temporale asymmetry and finds limited genetic links to neurodevelopmental disorders, intelligence, or educational attainment.

The paper examines hemispheric asymmetries in EEG and fMRI related to approach and avoidance behavior, finding no significant links to eating behavior or BMI.

The paper uses volume-wise fMRI analysis to predict language lateralization with high accuracy by classifying each time point and aggregating results.

This paper improves fMRI language lateralization indices by incorporating homotopic mapping, aligning results more closely with clinical tests like WADA and fTCD.

This study identifies epigenetic differences in hemispheric asymmetry in healthy brains, Parkinson’s disease, and aging, showing increased asymmetry in PD and its association with disease progression.

The paper examines age-related differences in brain asymmetry during memory retrieval using fMRI and finds no evidence for compensatory contralateral over-activation in older adults.

The paper deconstructs the laterality index in fMRI to improve language lateralisation classification in epilepsy patients, achieving high accuracy in predicting lateralisation and Wada test results.

This study reanalyzes the genetic basis of hand preference using UK Biobank data, finding no support for previously reported variants but identifying a significant association with the MAP2 gene.

The paper examines cerebral asymmetries using deformation-based methods, showing that tuning parameters improves the precision of asymmetry measurements in specific brain regions.

The paper maps functional hemispheric asymmetries in the human brain, identifies four functional axes, and links lateralisation to reduced inter-hemispheric connectivity.

The paper examines age-related differences in hemispheric lateralization during spatial and verbal visual working memory tasks using behavioral and neural markers.

The paper shows that Retinoic Acid signaling, specifically through Rere, controls brain asymmetry and handedness in zebrafish and mouse.