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Hippocampal beta oscillations predict mouse object‐location associative memory performance
Author(s) -
Iwasaki Satoshi,
Sasaki Takuya,
Ikegaya Yuji
Publication year - 2021
Publication title -
hippocampus
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.767
H-Index - 155
eISSN - 1098-1063
pISSN - 1050-9631
DOI - 10.1002/hipo.23311
Subject(s) - hippocampus , hippocampal formation , local field potential , neuroscience , encoding (memory) , beta (programming language) , content addressable memory , psychology , object (grammar) , computer science , artificial intelligence , artificial neural network , programming language
Memorizing the locations of environmental cues is crucial for survival and depends on the hippocampus. We recorded local field potentials (LFPs) from the hippocampus of freely moving mice during an object location task. The power of beta‐band (23–30 Hz) oscillations increased immediately before approaching objects in a memory‐encoding phase. The exploration‐induced beta oscillations gradually decreased during the memory‐encoding session. Mice that exhibited stronger beta oscillation power exhibited better performance in the subsequent memory‐retrieval test. These results suggest that beta oscillations in the hippocampal CA1 region are involved in the memory encoding of object‐location associations.