Statistical power comparisons at 3T and 7T with a GO / NOGO task.
Neuroimage
; 175: 100-110, 2018 07 15.
Article
em En
| MEDLINE
| ID: mdl-29621615
ABSTRACT
The field of cognitive neuroscience is weighing evidence about whether to move from standard field strength to ultra-high field (UHF). The present study contributes to the evidence by comparing a cognitive neuroscience paradigm at 3â¯Tesla (3T) and 7â¯Tesla (7T). The goal was to test and demonstrate the practical effects of field strength on a standard GO/NOGO task using accessible preprocessing and analysis tools. Two independent matched healthy samples (Nâ¯=â¯31 each) were analyzed at 3T and 7T. Results show gains at 7T in statistical strength, the detection of smaller effects and group-level power. With an increased availability of UHF scanners, these gains may be exploited by cognitive neuroscientists and other neuroimaging researchers to develop more efficient or comprehensive experimental designs and, given the same sample size, achieve greater statistical power at 7T.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Encéfalo
/
Imageamento por Ressonância Magnética
/
Interpretação Estatística de Dados
/
Função Executiva
/
Neuroimagem Funcional
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article