Subsequent memory-dependent EEG θ correlates to parahippocampal blood oxygenation level-dependent response
| Autor: | Seiji Ogawa, Kimitaka Anami, Yoshiaki Someya, Takashi J. Ozaki, Hiroaki Mizuhara, Yoko Yamaguchi, Naoyuki Sato |
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| Rok vydání: | 2010 |
| Předmět: |
Adult
Male Brain Mapping medicine.diagnostic_test General Neuroscience Hippocampus Electroencephalography Hippocampal formation Content-addressable memory Magnetic Resonance Imaging Brain mapping Functional imaging Electrophysiology medicine.anatomical_structure Memory Scalp Image Interpretation Computer-Assisted medicine Humans Female Theta Rhythm Psychology Neuroscience |
| Zdroj: | NeuroReport. 21:168-172 |
| ISSN: | 0959-4965 |
| DOI: | 10.1097/wnr.0b013e328332072a |
| Popis: | The 4-12 Hz (theta rhythm)-dependent neural dynamics play a fundamental role in the memory formation of the rat hippocampus. Although the power of human scalp electroencephalography theta (EEG theta) is known to be associated with a hippocampus-dependent memory encoding, it remains unclear whether the human hippocampus uses theta rhythm. In this study, we aim to identify the scalp EEG theta-related neural regions during memory encoding by using a simultaneous EEG-functional magnetic resonance imaging recording. We showed that the parahippocampal and the medial frontal and posterior regions were significantly correlated to subsequent memory-dependent EEG theta power. This evidence suggests that the human parahippocampal region and associated structures use theta rhythm during hippocampal memory encoding as in rodents. |
| Databáze: | OpenAIRE |
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