Journal article
Balancing Type I and Type II error concerns in fMRI through compartmentalized analysis
Cognitive neuroscience, Vol.8(3), pp.147-149
07/03/2017
DOI: 10.1080/17588928.2017.1299122
PMID: 28285552
Abstract
We seek to balance the need to minimize false positives with the need to maximize power. We propose a compartmentalized series of analyses that a priori selects regions of voxels that have different degrees of predicted involvement. Alpha thresholds are allocated based on the strength of expected theoretical relationships. For example, confirmatory studies might allocate most of the error to the regions predicted from the literature and thus use a relatively more liberal threshold on these voxels. Simulations reveal that this technique increases power for hypothesized regions, while maintaining a constant false-positive rate and allowing exploratory analysis.
Details
- Title: Subtitle
- Balancing Type I and Type II error concerns in fMRI through compartmentalized analysis
- Creators
- William A Cunningham - Department of Psychology and Rotman School of Management, University of TorontoTimothy R Koscik - Department of Psychology and Rotman School of Management, University of Toronto
- Resource Type
- Journal article
- Publication Details
- Cognitive neuroscience, Vol.8(3), pp.147-149
- Publisher
- Routledge
- DOI
- 10.1080/17588928.2017.1299122
- PMID
- 28285552
- ISSN
- 1758-8928
- eISSN
- 1758-8936
- Grant note
- CIHR-111257 / Canadian Institutes of Health Research (10.13039/501100000024)
- Language
- English
- Date published
- 07/03/2017
- Academic Unit
- Psychiatry
- Record Identifier
- 9984003478402771
Metrics
24 Record Views