The aim of the present study was to examine whether handedness and gender are associated with microstructural differences in human corpus callosum (CC). For this purpose, diffusion-tensor magnetic resonance imaging (DTI) was performed on 34 right- and 33 left-handed subjects of both sexes. Four quantitative variables (Mean Diffusion, Relative Anisotropy, parallel and orthogonal diffusion) were computed within the CC. A significantly increased anisotropy was found in left- as compared to right-handed subjects, and in men as compared to women. Additionally, both overall and orthogonal diffusion were significantly lower in left- than in right-handed subjects. Possible interpretations of these findings are discussed. The novel DTI technique promises to further advance current understanding of morphological structure in the living brain.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.neulet.2003.07.011 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Hemispheric Asymmetry of Intracortical Myelin Orientation in the Mouse Auditory Cortex.
Eur J Neurosci
January 2025
Faculty of Life Sciences, Leipzig University, Leipzig, Germany.
Communication sound processing in mouse AC is lateralized. Both left and right AC are highly specialised and differ in auditory stimulus representation, functional connectivity and field topography. Previous studies have highlighted intracortical functional circuits that explain hemispheric stimulus preference.
View Article and Find Full Text PDFThe Perceived Handism Discrimination Scale (PHDS): Development and factor analysis.
Laterality
January 2025
College of Medicine, Ajman University, Ajman, UAE.
While discrimination based on race, gender, and other factors is well-documented, the discrimination faced by left-handed individuals is often overlooked. To address this gap, a study developed the Perceived Handism Discrimination Scale (PHDS) to assess how left-handed people perceive discrimination related to their hand preference. The original questionnaire consisted of 20 items using a 7-point Likert scale and was evaluated by experts using Lawshe's methodology.
View Article and Find Full Text PDFPlanum Temporale Asymmetries in Primates: A Comparative Study in Great Apes and Monkeys.
Am J Biol Anthropol
January 2025
Michale E. Keeling Center for Comparative Medicine and Research, University of Texas MD Anderson Cancer Center, Bastrop, Texas, USA.
Objectives: Most human brains exhibit left hemisphere asymmetry for planum temporale (PT) surface area and gray matter volume, which is interpreted as cerebral lateralization for language. Once considered a uniquely human feature, PT asymmetries have now been documented in chimpanzees and olive baboons. The goal of the current study was to further investigate the evolution of PT asymmetries in nonhuman primates.
View Article and Find Full Text PDFOutcomes of Direct Anterior Total Hip Arthroplasty in Patients Who Have Preoperative Gluteal Tendinopathy and Tears: A Propensity-Matched Analysis.
J Arthroplasty
January 2025
Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, U.S.A. Electronic address:
Background: The gluteus medius and minimus muscles play a critical role in hip biomechanics, however there is a paucity of literature examining the impact of preoperative gluteal pathology on outcomes following total hip arthroplasty (THA). This study compared pain, satisfaction, and functional outcomes among patients who had and did not have preoperative gluteal pathology after direct anterior (DA) THA.
Methods: Using an institutional total joint registry, patients undergoing DA THA for osteoarthritis between 2010 and 2022 were retrospectively reviewed.
Temporal Trends in Hippocampal Sclerosis Surgery: An Observational Study From a Tertiary Epilepsy Centre.
Eur J Neurol
January 2025
Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, UK.
Objective: Temporal lobe epilepsy with hippocampal sclerosis (HS) is a surgically remediable syndrome. We determined temporal trends in the prevalence of hippocampal sclerosis surgeries and related factors.
Methods: We analysed a prospective cohort of adults who underwent epilepsy surgery at the NHNN, London, between 1990 and 2019.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!