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The impact of MRI scanner environment on perceptual decision-making
Citation
van Maanen, L and Forstmann, BU and Keuken, MC and Wagenmakers, EJ and Heathcote, A, The impact of MRI scanner environment on perceptual decision-making, Behavior research methods, 48, (1) pp. 184-200. ISSN 1554-351X (2016) [Refereed Article]
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Copyright Statement
© The Author(s) 2015. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
DOI: doi:10.3758/s13428-015-0563-6
Abstract
Despite the widespread use of functional Magnetic Resonance Imaging (fMRI), few studies have addressed scanner effects on performance. The studies that have examined this question show a wide variety of results. In this article we report analyses of three experiments in which participants performed a perceptual decision making task both in a traditional setting as well as inside an MRI scanner. The results consistently show that response times increase inside the scanner. Error rates also increase, but to a lesser extent. To reveal the underlying mechanisms that drive the behavioral changes when performing a task inside the MRI scanner, the data were analyzed using the Linear Ballistic Accumulator model of decision making. These analyses show that, in the scanner, participants exhibit a slow down of the motor component of the response and have less attentional focus on
the task. However, the balance between focus and motor slowing depends on the specific task requirements.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | Decision making; Response-time models; Behavioral experiments; Linear ballistic accumulator |
| Research Division: | Psychology and Cognitive Sciences |
| Research Group: | Cognitive Sciences |
| Research Field: | Decision Making |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding Knowledge |
| Objective Field: | Expanding Knowledge in the Medical and Health Sciences |
| UTAS Author: | Heathcote, A (Professor Andrew Heathcote) |
| ID Code: | 98947 |
| Year Published: | 2016 |
| Web of Science® Times Cited: | 10 |
| Deposited By: | Medicine |
| Deposited On: | 2015-03-10 |
| Last Modified: | 2018-02-02 |
| Downloads: | 41 View Download Statistics |
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