Assessment of Unconsciousness for Memory Consolidation Using EEG Signals
- URL: http://arxiv.org/abs/2005.08620v1
- Date: Fri, 15 May 2020 06:49:42 GMT
- Title: Assessment of Unconsciousness for Memory Consolidation Using EEG Signals
- Authors: Gi-Hwan Shin, Minji Lee, Seong-Whan Lee
- Abstract summary: We assess the unconsciousness in terms of memory consolidation using electroencephalogram signals.
spindle power in central, parietal, occipital regions during unconsciousness was positively correlated with the performance of location memory.
There was also a negative correlation between delta connectivity and word-pairs memory, alpha connectivity and location memory, and spindle connectivity and word-pairs memory.
- Score: 20.486281623777774
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The assessment of consciousness and unconsciousness is a challenging issue in
modern neuroscience. Consciousness is closely related to memory consolidation
in that memory is a critical component of conscious experience. So far, many
studies have been reported on memory consolidation during consciousness, but
there is little research on memory consolidation during unconsciousness.
Therefore, we aim to assess the unconsciousness in terms of memory
consolidation using electroencephalogram signals. In particular, we used
unconscious state during a nap; because sleep is the only state in which
consciousness disappears under normal physiological conditions. Seven
participants performed two memory tasks (word-pairs and visuo-spatial) before
and after the nap to assess the memory consolidation during unconsciousness. As
a result, spindle power in central, parietal, occipital regions during
unconsciousness was positively correlated with the performance of location
memory. With the memory performance, there was also a negative correlation
between delta connectivity and word-pairs memory, alpha connectivity and
location memory, and spindle connectivity and word-pairs memory. We
additionally observed the significant relationship between unconsciousness and
brain changes during memory recall before and after the nap. These findings
could help present new insights into the assessment of unconsciousness by
exploring the relationship with memory consolidation.
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