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Abstract #2996

Comparing Functional Contrast and Pattern Information across fMRI Resolutions

Marta Morgado Correia 1 , Arjen Alink 1 , and Nikolaus Kriegeskorte 1

1 MRC Cognition and Brain Sciences Unit, Cambridge, Cambridgeshire, United Kingdom

High resolution fMRI has the potential to reveal brain activity patterns in greater spatial detail, which promises more precise localisation and the elucidation of population-code information residing in fine-grained columnar patterns of neuronal activity. However, there are significant challenges of acquiring high resolution data at 3T. In this study we compared three fMRI resolutions (1.6mm, 2mm, and 3mm isotropic) in terms of their decoding accuracy of checkerboard-like response patterns in early visual cortex at different spatial scales.

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