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Functional neuroanatomy of human rapid-eye-movement sleep and dreaming
TLDR
A group study of seven subjects who maintained steady REM sleep during brain scanning and recalled dreams upon awakening shows that regional cerebral blood flow is positively correlated with REM sleep in pontine tegmentum, left thalamus, both amygdaloid complexes, anterior cingulate cortex and right parietal operculum.
View on Nature
Baseline brain activity fluctuations predict somatosensory perception in humans
TLDR
Results indicate a positive relationship between conscious perception of low-intensity somatosensory stimuli and immediately preceding levels of baseline activity in medial thalamus and the lateral frontoparietal network, respectively, which are thought to relate to vigilance and “external monitoring".
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Are Spatial Memories Strengthened in the Human Hippocampus during Slow Wave Sleep?
View on Elsevier
Hemodynamic cerebral correlates of sleep spindles during human non-rapid eye movement sleep
TLDR
The recruitment of partially segregated cortical networks for slow and fast spindles further supports the existence of two spindle types during human non-rapid eye movement sleep, with potentially different functional significance.
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Experience-dependent changes in cerebral activation during human REM sleep
TLDR
Using positron emission tomography and regional cerebral blood flow measurements, it is shown that waking experience influences regional brain activity during subsequent sleep and supports the hypothesis that memory traces are processed during REM sleep in humans.
View on Springer
Default network connectivity reflects the level of consciousness in non-communicative brain-damaged patients.
TLDR
It is shown that default network connectivity is decreased in severely brain-damaged patients, in proportion to their degree of consciousness impairment, as well as in healthy controls and locked-in syndrome patients.
View on PubMed
Breakdown of within- and between-network Resting State Functional Magnetic Resonance Imaging Connectivity during Propofol-induced Loss of Consciousness
TLDR
It is suggested that propofol-induced unconsciousness could be linked to a breakdown of cerebral temporal architecture that modifies both within- and between-network connectivity and thus prevents communication between low-level sensory and higher-order frontoparietal cortices, thought to be necessary for perception of external stimuli.
View on Wolters Kluwer
Distinct Regions of the Medial Prefrontal Cortex Are Associated with Self-referential Processing and Perspective Taking
TLDR
Findings show that self-referential processing and perspective taking recruit distinct regions of the MPFC and suggest that the left dorsal MPFC may be involved in decoupling one's own from other people's perspectives on the self.
View on MIT Press
Neural correlates of perceptual learning: A functional MRI study of visual texture discrimination
TLDR
Using functional magnetic resonance imaging in humans, neural activity is measured 24 h after a single session of intensive monocular training on visual texture discrimination to provide a direct demonstration of learning-dependent reorganization at early processing stages in the visual cortex of adult humans.
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Brain activity underlying encoding and retrieval of source memory.
TLDR
Findings indicate a role for these regions in the encoding and retrieval of episodic information beyond that required for simple item recognition.
View on PubMed
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