Hemispheric Asymmetry in Neuroscience

This paper investigates how brain asymmetry indices are affected by brain size and shows that omitting size-related predictors biases sex and age differences in asymmetries.

This study compares functional connectivity differences between left- and right-handed individuals across the whole brain, revealing non-region-specific patterns of connectivity.

This study shows that quantitative multidimensional laterality phenotypes capture more genetic variation than binary traits in handedness, footedness, and eyedness.

The paper finds that gestural communication lateralization in baboons correlates with asymmetry in the Inferior Arcuate sulcus, suggesting a potential evolutionary link to human Broca area lateralization.

This study identifies genetic and environmental factors influencing individual behavioral variation in larval zebrafish using light-search behavior.

This study conducts a meta-analysis of 25 studies to evaluate the association between hand preference and corpus callosum morphology, finding no significant effect.

The paper associates left-handedness with structural brain asymmetries in specific cortical regions using data from 31,864 individuals and identifies genetic links to these asymmetries.

The paper investigates whether age-related hemispheric asymmetry reduction in motor cortex reflects compensation, finding no evidence for a compensatory mechanism.

The paper compares structural and connectional asymmetries of the inferior parietal lobule across humans, chimpanzees, and rhesus macaques, finding humans have more widespread asymmetric connections linked to hemispheric specialization.

This pilot study investigates how double neurofeedback affects functional hemispheric asymmetry and activity in healthy participants, finding it does not directly influence asymmetry but may affect sound perception.

The paper reports leftward asymmetry of the Planum Temporale grey matter volume in newborn baboons, suggesting continuity with human brain specialization for language.

The paper identifies 21 genetic loci associated with brain asymmetry using UK Biobank data and links them to microtubule-related genes and psychiatric traits.

The paper analyzes brain asymmetry in three population datasets, finding associations with handedness, cognitive functions, and a genetic correlation with Autism Spectrum Disorder.

The paper measures transcallosal conduction delay (TCD) using TMS-evoked potentials and shows that asymmetric TCD improves bimanual coordination.

The paper identifies asymmetric thinning of the cerebral cortex across aging and Alzheimer's Disease, showing that the initially thicker hemisphere thins faster, with this pattern replicated across multiple cohorts.

This study uses fixel-based analysis to examine white matter lateralisation in individuals with left and right language dominance, finding similar patterns with some group differences in the forceps minor.

The paper examines the relationship between hemispheric grey matter asymmetry and auditory processing of spoken syllables in 281 adults, finding structural correlates in subcortical regions.

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.

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.

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.