scholarly journals Neural Correlates of Dream Lucidity Obtained from Contrasting Lucid versus Non-Lucid REM Sleep: A Combined EEG/fMRI Case Study

SLEEP ◽  
2012 ◽  
Vol 35 (7) ◽  
pp. 1017-1020 ◽  
Author(s):  
Martin Dresler ◽  
Renate Wehrle ◽  
Victor I. Spoormaker ◽  
Stefan P. Koch ◽  
Florian Holsboer ◽  
...  
Keyword(s):  
Rem Sleep ◽  
Neural Correlates

The impact of imagery rehearsal therapy on dream enactment in a patient with REM-sleep behavior disorder: A case study.

Dreaming ◽  
2021 ◽  
Vol 31 (3) ◽  
pp. 195-206
Author(s):  
Christina Pierpaoli-Parker ◽  
Courtney J. Bolstad ◽  
Erica Szkody ◽  
Amy W. Amara ◽  
Michael R. Nadorff ◽  
...  
Keyword(s):  
Rem Sleep ◽  
Rem Sleep Behavior Disorder ◽  
Behavior Disorder ◽  
Sleep Behavior ◽  
Imagery Rehearsal Therapy ◽  
The Impact ◽  
Imagery Rehearsal

scholarly journals Superior explicit memory despite severe developmental amnesia: In‐depth case study and neural correlates

Hippocampus ◽  
2018 ◽  
Vol 28 (12) ◽  
pp. 867-885 ◽  
Author(s):  
Pierre‐Yves Jonin ◽  
Gabriel Besson ◽  
Renaud La Joie ◽  
Jérémie Pariente ◽  
Serge Belliard ◽  
...  
Keyword(s):  
Explicit Memory ◽  
Neural Correlates ◽  
Developmental Amnesia

scholarly journals H-Reflex Suppression and Autonomic Activation During Lucid REM Sleep: A Case Study

SLEEP ◽  
1989 ◽  
Vol 12 (4) ◽  
pp. 374-378 ◽  
Author(s):  
Andrew Brylowski ◽  
Lynne Levitan ◽  
Stephen LaBerge
Keyword(s):  
Rem Sleep ◽  
H Reflex ◽  
Autonomic Activation

scholarly journals The Phenomenal Contents and Neural Correlates of Spontaneous Thoughts across Wakefulness, NREM Sleep, and REM Sleep

2017 ◽  
Vol 29 (10) ◽  
pp. 1766-1777 ◽  
Author(s):  
Lampros Perogamvros ◽  
Benjamin Baird ◽  
Mitja Seibold ◽  
Brady Riedner ◽  
Melanie Boly ◽  
...  
Keyword(s):  
Eye Movement ◽  
Rem Sleep ◽  
Nrem Sleep ◽  
Neural Correlates ◽  
Behavioral State ◽  
Rapid Eye Movement ◽  
Social Content ◽  
Midcingulate Cortex ◽  
Neural Substrate ◽  
Prefrontal Region

Thoughts occur during wake as well as during dreaming sleep. Using experience sampling combined with high-density EEG, we investigated the phenomenal qualities and neural correlates of spontaneously occurring thoughts across wakefulness, non-rapid eye movement (NREM) sleep, and REM sleep. Across all states, thoughts were associated with activation of a region of the midcingulate cortex. Thoughts during wakefulness additionally involved a medial prefrontal region, which was associated with metacognitive thoughts during wake. Phenomenologically, waking thoughts had more metacognitive content than thoughts during both NREM and REM sleep, whereas thoughts during REM sleep had a more social content. Together, these results point to a core neural substrate for thoughts, regardless of behavioral state, within the midcingulate cortex, and suggest that medial prefrontal regions may contribute to metacognitive content in waking thoughts.

scholarly journals Neuropsychological correlates of an energy psychology intervention on flight phobia: A MEG single-case study

2019 ◽  
Author(s):  
Franck Di Rienzo ◽  
Elodie Saruco ◽  
Dawson Church ◽  
Sébastien Daligault ◽  
Claude Delpuech ◽  
...  
Keyword(s):  
Treatment Effects ◽  
Single Case ◽  
Neural Correlates ◽  
Brain Regions ◽  
Evidence Based Treatment ◽  
Energy Psychology ◽  
Randomized Controlled ◽  
Neurophysiological Mechanisms ◽  
First Time

In this single-case MEG pilot study, an Emotional Freedom Technique (EFT) intervention produced regulation of brain regions exhibiting treatment effects in response to conventional psychotherapy and medication. The neural correlates of the threat response were attenuated, and heightened activation of brain frontal executive regions mediating limbic responses appraisal to stressful stimuli was recorded. These pilot results are consistent with the literature indicating that EFT is an evidence-based treatment for phobias. They provide for the first time knowledge regarding the neurophysiological mechanisms underlying the treatment effects. This study pioneers the methodology required to conduct randomized controlled trials.

scholarly journals EEG Frontal Alpha Asymmetry and Dream Affect: Alpha Oscillations Over the Right Frontal Cortex Predict Anger in REM Sleep Dreams

2018 ◽  
Author(s):  
Pilleriin Sikka ◽  
antti revonsuo ◽  
Valdas Noreika ◽  
Katja Valli
Keyword(s):  
Rem Sleep ◽  
Affect Regulation ◽  
Spectral Power ◽  
Neural Correlates ◽  
Alpha Power ◽  
Affective States ◽  
Alpha Asymmetry ◽  
Frontal Alpha Asymmetry ◽  
Dream Report ◽  
Affective Experiences

Affective experiences are central not only to our waking life but also to rapid eye movement (REM) sleep dreams. While the neural correlates of REM sleep are well documented, we know little about the neural correlates of dream affect. Frontal alpha asymmetry (FAA) is considered a marker of affective states and traits as well as affect regulation in the waking state. Here, we explored whether FAA during REM sleep and during evening resting wakefulness is related to affective experiences in REM sleep dreams. Electroencephalography (EEG) recordings were obtained from participants who spent two nights in the sleep laboratory. Participants were awakened five minutes after the onset of every REM stage after which they provided a dream report and rated their dream affect. Two-minute pre-awakening EEG preceding each dream report were analyzed. Additionally, eight minutes of evening pre-sleep and morning post-sleep EEG were recorded during resting wakefulness. Mean spectral power in the alpha band (8-13 Hz) and corresponding FAA were calculated over the frontal (F4-F3) sites. Results showed that FAA during REM sleep, and during evening resting wakefulness, predicted ratings of dream anger. This suggests that individuals with lower right frontal activity (reflected in increased alpha power) may be less able to regulate (i.e., inhibit) strong affective states, such as anger, in dreams. Additionally, FAA was positively correlated across wakefulness and REM sleep. These findings imply that FAA may serve as a neural correlate of state and trait affect regulation not only in the waking but also in the dreaming state.

scholarly journals The neural correlates of dreaming

2014 ◽  
Author(s):  
Francesca Siclari ◽  
Benjamin Baird ◽  
Lampros Perogamvros ◽  
Giulio Bernardi ◽  
Joshua J LaRocque ◽  
...  
Keyword(s):  
Real Time ◽  
Rem Sleep ◽  
High Frequency ◽  
Low Frequency ◽  
Nrem Sleep ◽  
Neural Correlates ◽  
High Density ◽  
High Frequency Activity ◽  
Cortical Regions ◽  
Hot Zone

Consciousness never fades during wake. However, if awakened from sleep, sometimes we report dreams and sometimes no experiences. Traditionally, dreaming has been identified with REM sleep, characterized by a wake-like, globally "activated", high-frequency EEG. However, dreaming also occurs in NREM sleep, characterized by prominent low-frequency activity. This challenges our understanding of the neural correlates of conscious experiences in sleep. Using high-density EEG, we contrasted the presence and absence of dreaming within NREM and REM sleep. In both NREM and REM sleep, the presence of dreaming was associated with a local decrease in low-frequency activity in posterior cortical regions. High-frequency activity within these regions correlated with specific dream contents. Monitoring this posterior "hot zone" predicted the presence/absence of dreaming during NREM sleep in real time, suggesting that it may constitute a core correlate of conscious experiences in sleep.

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