L
Leigh E. Nystrom
Researcher at Princeton University
Publications - 43
Citations - 22610
Leigh E. Nystrom is an academic researcher from Princeton University. The author has contributed to research in topics: Functional magnetic resonance imaging & Prefrontal cortex. The author has an hindex of 31, co-authored 43 publications receiving 21259 citations. Previous affiliations of Leigh E. Nystrom include University of Pittsburgh & Carnegie Mellon University.
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Between-task competition and cognitive control in task switching.
TL;DR: It was found that activity in brain regions selective for the currently irrelevant task predicted the behavioral cost associated with switching tasks, which supports the theory that between-task competition is a critical determinant of behavior.
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Opposing BOLD responses to reciprocated and unreciprocated altruism in putative reward pathways.
TL;DR: The authors used fMRI to test whether mesencephalic dopamine neurons are activated as expected in response to errors in predictions about whether a social partner would reciprocate an act of altruism.
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Role of prefrontal cortex and the midbrain dopamine system in working memory updating
Kimberlee D'Ardenne,Neir Eshel,Joseph Luka,Agatha Lenartowicz,Leigh E. Nystrom,Jonathan D. Cohen +5 more
TL;DR: High-resolution fMRI measurements in brainstem dopaminergic nuclei found phasic responses after presentation of context stimuli relative to other stimuli, consistent with the timing of a gating signal that regulates the encoding of representations in PFC.
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Confounds in multivariate pattern analysis: Theory and rule representation case study.
TL;DR: It is demonstrated that widely used approaches to MVPA can systematically admit certain confounds that are appropriately eliminated by GLMA, which raises the question of whether recently reported results truly reflect rule representations, or rather the effects of confounds such as reaction time, difficulty, or other variables of no interest.
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Functional Imaging of Decision Conflict
TL;DR: The neurobiological underpinnings of decision conflict are investigated, and it is shown that the anterior cingulate cortex does indeed index conflict at the decision stage, and does so for a complex decision task, one that requires the integration of beliefs and preferences and not just perceptual judgments.