Zobrazeno 1 - 10
of 254
pro vyhledávání: '"Charan Ranganath"'
Autor:
Jordan Crivelli-Decker, Alex Clarke, Seongmin A. Park, Derek J. Huffman, Erie D. Boorman, Charan Ranganath
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-13 (2023)
Abstract Recent work in cognitive and systems neuroscience has suggested that the hippocampus might support planning, imagination, and navigation by forming cognitive maps that capture the abstract structure of physical spaces, tasks, and situations.
Externí odkaz:
https://doaj.org/article/06b58a9feeb24401b76c95b5206d3bf0
Autor:
Zachariah M. Reagh, Charan Ranganath
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-15 (2023)
How the brain builds memories from the complex, dynamic experiences that make up everyday life remains poorly understood. Here, the authors show that memories for lifelike events are supported by stable representations of people, contexts, and situat
Externí odkaz:
https://doaj.org/article/18cd7fa6a1a64eec8ebcb4c783601017
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-13 (2022)
Our memory is temporally organized, but our internal clock can be distorted. The authors demonstrate how environmental changes (termed event boundaries) affect memory for event order, and provide a computational model to explain these effects.
Externí odkaz:
https://doaj.org/article/61580b8e76454029a37dc750caf80eb5
Publikováno v:
PLoS Computational Biology, Vol 18, Iss 10, p e1010589 (2022)
The hippocampus plays a critical role in the rapid learning of new episodic memories. Many computational models propose that the hippocampus is an autoassociator that relies on Hebbian learning (i.e., "cells that fire together, wire together"). Howev
Externí odkaz:
https://doaj.org/article/10f3b924453744ea83e3bb1bf567bdbe
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-12 (2020)
Although our lives are continuous, we perceive and remember experiences as discrete events. Here, the authors show that neural responses at event boundaries in the hippocampus and Posterior Medial cortical network decline as we age, and predict memor
Externí odkaz:
https://doaj.org/article/b87da02d76634968870cb5b24659072b
Autor:
Matthew S. Sherwood, Lindsey McIntire, Aaron T. Madaris, Kamin Kim, Charan Ranganath, R. Andy McKinley
Publikováno v:
Frontiers in Human Neuroscience, Vol 15 (2021)
Transcranial direct current stimulation (tDCS) to the left prefrontal cortex has been shown to produce broad behavioral effects including enhanced learning and vigilance. Still, the neural mechanisms underlying such effects are not fully understood.
Externí odkaz:
https://doaj.org/article/e32031b307d24b979b4aa8c47c1535de
Autor:
Alexander J Barnett, Walter Reilly, Halle R Dimsdale-Zucker, Eda Mizrak, Zachariah Reagh, Charan Ranganath
Publikováno v:
PLoS Biology, Vol 19, Iss 6, p e3001275 (2021)
Episodic memory depends on interactions between the hippocampus and interconnected neocortical regions. Here, using data-driven analyses of resting-state functional magnetic resonance imaging (fMRI) data, we identified the networks that interact with
Externí odkaz:
https://doaj.org/article/dc1ab01abc21497081e1adf7a8efd4a7
Autor:
Halle R. Dimsdale-Zucker, Maureen Ritchey, Arne D. Ekstrom, Andrew P. Yonelinas, Charan Ranganath
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018)
Computational studies have hinted that hippocampal subfields represent information differently. Here, the authors show that when retrieving items that share an episodic context, subfield CA1 represent similarities between items whereas CA2/3/dentate
Externí odkaz:
https://doaj.org/article/44351e38bf3e450caf914489712c5d93
Publikováno v:
PLoS ONE, Vol 13, Iss 11, p e0207357 (2018)
The development and application of concepts is a critical component of cognition. Although concepts can be formed on the basis of simple perceptual or semantic features, conceptual representations can also capitalize on similarities across feature re
Externí odkaz:
https://doaj.org/article/bec0a19988ad42909062fef9f3f88b70
Publikováno v:
eLife, Vol 4 (2015)
The entorhinal cortex (EC) is the primary site of interactions between the neocortex and hippocampus. Studies in rodents and nonhuman primates suggest that EC can be divided into subregions that connect differentially with perirhinal cortex (PRC) vs
Externí odkaz:
https://doaj.org/article/4c1893e9066a44dd959c9647b168535e