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Jack Grinband

Researcher at Columbia University

Publications -  63
Citations -  2543

Jack Grinband is an academic researcher from Columbia University. The author has contributed to research in topics: Medicine & Glioma. The author has an hindex of 21, co-authored 52 publications receiving 1903 citations. Previous affiliations of Jack Grinband include University of York & City University of New York.

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A neural representation of categorization uncertainty in the human brain.

TL;DR: Using event-related functional MRI, it was discovered that activity in a fronto-striatal-thalamic network, consisting of the medial frontal gyrus, anterior insula, ventral striatum, and dorsomedial thalamus, was modulated by categorization uncertainty.
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Deep-Learning Convolutional Neural Networks Accurately Classify Genetic Mutations in Gliomas

TL;DR: For The Cancer Imaging Archives dataset, machine-learning approaches allow classification of individual genetic mutations of both low- and high-grade gliomas and relevant MR imaging features acquired from an added dimensionality-reduction technique demonstrate that neural networks are capable of learning key imaging components without prior feature selection or human directed training.
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Detection of time-varying signals in event-related fMRI designs.

TL;DR: It is shown that brief differences in duration are detectable, making it possible to dissociate the effects of stimulus intensity from stimulus duration, and that optimizing the model for the type of activity being detected improves the statistical power, consistency, and interpretability of results.
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The dorsal medial frontal cortex is sensitive to time on task, not response conflict or error likelihood.

TL;DR: This study shows that the conflict monitoring model fails to predict the relationship between error likelihood and RT, and the dMFC activity is not sensitive to congruency, error likelihood, or response conflict, but is monotonically related to time on task.