{"title":"使用神经成像技术量化脑不对称的方法学考虑","authors":"Haokun Li , Jingli Qu , Gaolang Gong","doi":"10.1016/j.brainres.2025.149979","DOIUrl":null,"url":null,"abstract":"<div><div>Structural and functional asymmetries are crucial for understanding the relationship between the left and right hemispheres of the human brain. Quantifying brain asymmetry or lateralization represents a fundamental methodological choice in this field, and approaches vary considerably across studies. This review aims to briefly summarize and discuss methodological considerations for quantifying brain asymmetry across different neuroimaging techniques and research contexts. We illustrate how the definition of specific homotopic units serves as a prerequisite, how the degree of hemispheric asymmetry between these units is quantified using lateralization index formulas, and how the application of these lateralization indices requires careful consideration.</div></div>","PeriodicalId":9083,"journal":{"name":"Brain Research","volume":"1867 ","pages":"Article 149979"},"PeriodicalIF":2.6000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Methodological considerations for quantifying brain asymmetry using neuroimaging techniques\",\"authors\":\"Haokun Li , Jingli Qu , Gaolang Gong\",\"doi\":\"10.1016/j.brainres.2025.149979\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Structural and functional asymmetries are crucial for understanding the relationship between the left and right hemispheres of the human brain. Quantifying brain asymmetry or lateralization represents a fundamental methodological choice in this field, and approaches vary considerably across studies. This review aims to briefly summarize and discuss methodological considerations for quantifying brain asymmetry across different neuroimaging techniques and research contexts. We illustrate how the definition of specific homotopic units serves as a prerequisite, how the degree of hemispheric asymmetry between these units is quantified using lateralization index formulas, and how the application of these lateralization indices requires careful consideration.</div></div>\",\"PeriodicalId\":9083,\"journal\":{\"name\":\"Brain Research\",\"volume\":\"1867 \",\"pages\":\"Article 149979\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2025-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Brain Research\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0006899325005426\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"NEUROSCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brain Research","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0006899325005426","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"NEUROSCIENCES","Score":null,"Total":0}
Methodological considerations for quantifying brain asymmetry using neuroimaging techniques
Structural and functional asymmetries are crucial for understanding the relationship between the left and right hemispheres of the human brain. Quantifying brain asymmetry or lateralization represents a fundamental methodological choice in this field, and approaches vary considerably across studies. This review aims to briefly summarize and discuss methodological considerations for quantifying brain asymmetry across different neuroimaging techniques and research contexts. We illustrate how the definition of specific homotopic units serves as a prerequisite, how the degree of hemispheric asymmetry between these units is quantified using lateralization index formulas, and how the application of these lateralization indices requires careful consideration.
期刊介绍:
An international multidisciplinary journal devoted to fundamental research in the brain sciences.
Brain Research publishes papers reporting interdisciplinary investigations of nervous system structure and function that are of general interest to the international community of neuroscientists. As is evident from the journals name, its scope is broad, ranging from cellular and molecular studies through systems neuroscience, cognition and disease. Invited reviews are also published; suggestions for and inquiries about potential reviews are welcomed.
With the appearance of the final issue of the 2011 subscription, Vol. 67/1-2 (24 June 2011), Brain Research Reviews has ceased publication as a distinct journal separate from Brain Research. Review articles accepted for Brain Research are now published in that journal.