상세정보
Export to Refworks부가기능
Reliability and Validity of fMRI Mapping Methods
상세 프로파일
| 자료유형 | 학위논문 |
|---|---|
| 서명/저자사항 | Reliability and Validity of fMRI Mapping Methods. |
| 개인저자 | Noble, Stephanie. |
| 단체저자명 | Yale University. Interdepartmental Neuroscience Program. |
| 발행사항 | [S.l.]: Yale University., 2019. |
| 발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2019. |
| 형태사항 | 153 p. |
| 기본자료 저록 | Dissertations Abstracts International 81-03B. Dissertation Abstract International |
| ISBN | 9781088308530 |
| 학위논문주기 | Thesis (Ph.D.)--Yale University, 2019. |
| 일반주기 |
Source: Dissertations Abstracts International, Volume: 81-03, Section: B.
Advisor: Constable, R. Todd. |
| 이용제한사항 | This item must not be sold to any third party vendors. |
| 요약 | Once considered mere noise, fMRI has become a major neuroscience tool in part due to early studies demonstrating its utility in mapping fundamental functions in the human brain. This is a relatively young branch of science, and exciting new techniques often emerge and disseminate before we can fully understand their limitations. Recent work has raised questions about the reliability and validity of major fMRI statistical methods that are both habitually underpowered and nonspecific. This work seeks to address these unresolved questions. The first three content chapters focused on influences on the reliability of functional connectivity. The first chapter reveals that functional connectivity acquired across multiple sites across North America did not show major site, scanner manufacturer, or day effects. In the second chapter, a unique, extensively sampled dataset was used to address how amount of data per subject influences whole-brain reliability, the influence of increasing runs versus sessions, the spatial distribution of reliability, the reliability of multivariate methods, and, crucially, how reliability maps onto utility. The third chapter contains the first ever meta-analysis and systematic review of the literature, which underscored the poor reliability of functional connectivity, the conditions under which reliability improves (both spatial and processing), and limitations of the measure. The fourth chapter shifts gears to explore the accuracy of activation mapping |
| 일반주제명 | Neurosciences. |
| 언어 | 영어 |
| 바로가기 | 
: 이 자료의 원문은 한국교육학술정보원에서 제공합니다. |
