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Review

Investigation on Neurobiological Mechanisms of Dreaming in the New Decade

1
Body and Action Lab, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy
2
Department of Psychology, Sapienza University of Rome, 00185 Rome, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Stephen D. Meriney
Brain Sci. 2021, 11(2), 220; https://doi.org/10.3390/brainsci11020220
Received: 23 December 2020 / Revised: 6 February 2021 / Accepted: 8 February 2021 / Published: 11 February 2021
(This article belongs to the Special Issue A Decade of Brain Sciences)
Dream research has advanced significantly over the last twenty years, thanks to the new applications of neuroimaging and electrophysiological techniques. Many findings pointed out that mental activity during sleep and wakefulness shared similar neural bases. On the other side, recent studies have highlighted that dream experience is promoted by significant brain activation, characterized by reduced low frequencies and increased rapid frequencies. Additionally, several studies confirmed that the posterior parietal area and prefrontal cortex are responsible for dream experience. Further, early results revealed that dreaming might be manipulated by sensory stimulations that would provoke the incorporation of specific cues into the dream scenario. Recently, transcranial stimulation techniques have been applied to modulate the level of consciousness during sleep, supporting previous findings and adding new information about neural correlates of dream recall. Overall, although multiple studies suggest that both the continuity and activation hypotheses provide a growing understanding of neural processes underlying dreaming, several issues are still unsolved. The impact of state-/trait-like variables, the influence of circadian and homeostatic factors, and the examination of parasomnia-like events to access dream contents are all opened issues deserving further deepening in future research. View Full-Text
Keywords: dream recall; sleep; EEG; neuroimaging; brain stimulation; activation; continuity dream recall; sleep; EEG; neuroimaging; brain stimulation; activation; continuity
MDPI and ACS Style

Scarpelli, S.; Alfonsi, V.; Gorgoni, M.; Giannini, A.M.; De Gennaro, L. Investigation on Neurobiological Mechanisms of Dreaming in the New Decade. Brain Sci. 2021, 11, 220. https://doi.org/10.3390/brainsci11020220

AMA Style

Scarpelli S, Alfonsi V, Gorgoni M, Giannini AM, De Gennaro L. Investigation on Neurobiological Mechanisms of Dreaming in the New Decade. Brain Sciences. 2021; 11(2):220. https://doi.org/10.3390/brainsci11020220

Chicago/Turabian Style

Scarpelli, Serena, Valentina Alfonsi, Maurizio Gorgoni, Anna M. Giannini, and Luigi De Gennaro. 2021. "Investigation on Neurobiological Mechanisms of Dreaming in the New Decade" Brain Sciences 11, no. 2: 220. https://doi.org/10.3390/brainsci11020220

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