Metacognitive mechanisms underlying lucid dreaming
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Metacognitive mechanisms underlying lucid dreaming. / Filevich, Elisa; Dresler, Martin; Brick, Timothy R; Kühn, Simone.
in: J NEUROSCI, Jahrgang 35, Nr. 3, 21.01.2015, S. 1082-8.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Metacognitive mechanisms underlying lucid dreaming
AU - Filevich, Elisa
AU - Dresler, Martin
AU - Brick, Timothy R
AU - Kühn, Simone
N1 - Copyright © 2015 the authors 0270-6474/15/351082-07$15.00/0.
PY - 2015/1/21
Y1 - 2015/1/21
N2 - Lucid dreaming is a state of awareness that one is dreaming, without leaving the sleep state. Dream reports show that self-reflection and volitional control are more pronounced in lucid compared with nonlucid dreams. Mostly on these grounds, lucid dreaming has been associated with metacognition. However, the link to lucid dreaming at the neural level has not yet been explored. We sought for relationships between the neural correlates of lucid dreaming and thought monitoring. Human participants completed a questionnaire assessing lucid dreaming ability, and underwent structural and functional MRI. We split participants based on their reported dream lucidity. Participants in the high-lucidity group showed greater gray matter volume in the frontopolar cortex (BA9/10) compared with those in the low-lucidity group. Further, differences in brain structure were mirrored by differences in brain function. The BA9/10 regions identified through structural analyses showed increases in blood oxygen level-dependent signal during thought monitoring in both groups, and more strongly in the high-lucidity group. Our results reveal shared neural systems between lucid dreaming and metacognitive function, in particular in the domain of thought monitoring. This finding contributes to our understanding of the mechanisms enabling higher-order consciousness in dreams.
AB - Lucid dreaming is a state of awareness that one is dreaming, without leaving the sleep state. Dream reports show that self-reflection and volitional control are more pronounced in lucid compared with nonlucid dreams. Mostly on these grounds, lucid dreaming has been associated with metacognition. However, the link to lucid dreaming at the neural level has not yet been explored. We sought for relationships between the neural correlates of lucid dreaming and thought monitoring. Human participants completed a questionnaire assessing lucid dreaming ability, and underwent structural and functional MRI. We split participants based on their reported dream lucidity. Participants in the high-lucidity group showed greater gray matter volume in the frontopolar cortex (BA9/10) compared with those in the low-lucidity group. Further, differences in brain structure were mirrored by differences in brain function. The BA9/10 regions identified through structural analyses showed increases in blood oxygen level-dependent signal during thought monitoring in both groups, and more strongly in the high-lucidity group. Our results reveal shared neural systems between lucid dreaming and metacognitive function, in particular in the domain of thought monitoring. This finding contributes to our understanding of the mechanisms enabling higher-order consciousness in dreams.
KW - Adolescent
KW - Adult
KW - Awareness
KW - Brain
KW - Cognition
KW - Dreams
KW - Female
KW - Humans
KW - Magnetic Resonance Imaging
KW - Male
KW - Neuroimaging
KW - Sleep, REM
KW - Surveys and Questionnaires
KW - Young Adult
U2 - 10.1523/JNEUROSCI.3342-14.2015
DO - 10.1523/JNEUROSCI.3342-14.2015
M3 - SCORING: Journal article
C2 - 25609624
VL - 35
SP - 1082
EP - 1088
JO - J NEUROSCI
JF - J NEUROSCI
SN - 0270-6474
IS - 3
ER -
