G
Ghootae Kim
Researcher at Princeton University
Publications - 7
Citations - 196
Ghootae Kim is an academic researcher from Princeton University. The author has contributed to research in topics: Context (language use) & Episodic memory. The author has an hindex of 3, co-authored 7 publications receiving 148 citations. Previous affiliations of Ghootae Kim include University of Oregon.
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Journal ArticleDOI
Pruning of memories by context-based prediction error
TL;DR: It is shown that when a previously experienced context is reencountered, the brain automatically generates predictions about which items should appear in familiar contexts; if these items fail to appear, their memories are weakened.
Journal ArticleDOI
Neural Differentiation of Incorrectly Predicted Memories.
TL;DR: Support is provided for this theory using fMRI to track neural representations of individual memories in the hippocampus and how they change based on learning, which suggests that the brain adaptively differentiates its memory representation to improve the accuracy of subsequent predictions and to shield it from further weakening.
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Abrupt hippocampal remapping signals resolution of memory interference.
TL;DR: It is shown that activity patterns in human CA3/dentate gyrus exhibit an abrupt, temporally-specific decorrelation of highly similar memory representations that is precisely coupled with behavioral expressions of successful learning, establishing a critical link between hippocampal remapping and episodic memory interference and providing insight into why remapping occurs.
Journal ArticleDOI
Neural Overlap in Item Representations Across Episodes Impairs Context Memory
TL;DR: It is hypothesized that when an item's initial and subsequent neural representations overlap, this allows the initial item to become associated with novel contextual information, interfering with later retrieval of the initial context.
Posted ContentDOI
Neural differentiation of incorrectly predicted memories
TL;DR: The consequences of prediction error go beyond memory weakening: if the mispredicted item is restudied, the brain adaptively differentiates its memory representation to improve the accuracy of subsequent predictions and to shield it from further weakening.