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Alexander J. Shackman
Researcher at University of Maryland, College Park
Publications - 96
Citations - 8415
Alexander J. Shackman is an academic researcher from University of Maryland, College Park. The author has contributed to research in topics: Anxiety & Central nucleus of the amygdala. The author has an hindex of 38, co-authored 81 publications receiving 6971 citations. Previous affiliations of Alexander J. Shackman include University of Wisconsin-Madison.
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The integration of negative affect, pain and cognitive control in the cingulate cortex
Alexander J. Shackman,Tim V. Salomons,Heleen A. Slagter,Andrew S. Fox,Jameel Winter,Richard J. Davidson +5 more
TL;DR: It is demonstrated that negative affect, pain and cognitive control activate an overlapping region of the dorsal cingulate — the anterior midcingulate cortex (aMCC), which constitutes a hub where information about reinforcers can be linked to motor centres responsible for expressing affect and executing goal-directed behaviour.
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Compassion Training Alters Altruism and Neural Responses to Suffering
Helen Y. Weng,Andrew S. Fox,Alexander J. Shackman,Diane E. Stodola,Jessica Z.K. Caldwell,Matthew C. Olson,Gregory M. Rogers,Richard J. Davidson +7 more
TL;DR: It is found that compassion training increased altruistic redistribution of funds to a victim encountered outside of the training context and that greater altruistic behavior may emerge from increased engagement of neural systems implicated in understanding the suffering of other people, executive and emotional control, and reward processing.
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Frontal midline theta reflects anxiety and cognitive control: meta-analytic evidence.
TL;DR: It is argued that frontal-midline theta provides a neurophysiologically plausible mechanism for optimally adjusting behavior to uncertainty, a hallmark of situations that elicit anxiety and demand cognitive control.
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Reduced capacity to sustain positive emotion in major depression reflects diminished maintenance of fronto-striatal brain activation
Aaron S. Heller,Tom Johnstone,Alexander J. Shackman,Sharee N. Light,Michael J. Peterson,Gregory G. Kolden,Ned H. Kalin,Richard J. Davidson +7 more
TL;DR: The hypothesis that anhedonia in depressed patients reflects the inability to sustain engagement of structures involved in positive affect and reward is supported.
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Anxiety selectively disrupts visuospatial working memory.
Alexander J. Shackman,Issidoros Sarinopoulos,Jeffrey S. Maxwell,Diego A. Pizzagalli,Aureliu Lavric,Richard J. Davidson +5 more
TL;DR: In this article, the authors proposed four methodological desiderata for studying how task-irrelevant affect modulates cognition and presented data from an experiment satisfying them, consistent with accounts of the hemispheric asymmetries characterizing withdrawal-related negative affect and visuospatial working memory.