Results 21 to 30 of about 411,191 (267)

Active control of arousal by a locus coeruleus GABAergic circuit [PDF]

open access: yesNature Neuroscience, 2018
Arousal responses linked to locus coeruleus noradrenergic (LC-NA) activity affect cognition. However, the mechanisms that control modes of LC-NA activity remain unknown.
Vincent Breton-Provencher, M. Sur
semanticscholar   +2 more sources

Declining locus coeruleus–dopaminergic and noradrenergic modulation of long-term memory in aging and Alzheimer’s disease

open access: yesNeuroscience and Biobehavioral Reviews, 2023
Memory is essential in defining our identity by guiding behavior based on past experiences. However, aging leads to declining memory, disrupting older adult’s lives.
M. Dahl   +3 more
semanticscholar   +1 more source

In vivo and neuropathology data support locus coeruleus integrity as indicator of Alzheimer’s disease pathology and cognitive decline

open access: yesScience Translational Medicine, 2021
Description In vivo and autopsy evidence supports locus coeruleus MRI measures as proxy of initial TAU deposition and amyloid-related memory decline.
H. Jacobs   +16 more
semanticscholar   +1 more source

When the Locus Coeruleus Speaks Up in Sleep: Recent Insights, Emerging Perspectives

open access: yesInternational Journal of Molecular Sciences, 2022
For decades, numerous seminal studies have built our understanding of the locus coeruleus (LC), the vertebrate brain’s principal noradrenergic system.
Alejandro Osorio-Forero   +4 more
semanticscholar   +1 more source

Pupil diameter is not an accurate real-time readout of locus coeruleus activity

open access: yeseLife, 2022
Pupil diameter is often treated as a noninvasive readout of activity in the locus coeruleus (LC). However, how accurately it can be used to index LC activity is not known.
M. Megemont   +2 more
semanticscholar   +1 more source

The Locus Coeruleus- Norepinephrine System in Stress and Arousal: Unraveling Historical, Current, and Future Perspectives

open access: yesFrontiers in Psychiatry, 2021
Arousal may be understood on a spectrum, with excessive sleepiness, cognitive dysfunction, and inattention on one side, a wakeful state in the middle, and hypervigilance, panic, and psychosis on the other side.
Jennifer A. Ross, E. V. Van Bockstaele
semanticscholar   +1 more source

The locus coeruleus and central chemosensitivity [PDF]

open access: yesRespiratory Physiology & Neurobiology, 2010
The locus coeruleus (LC) lies in the dorsal pons and supplies noradrenergic (NA) input to many regions of the brain, including respiratory control areas. The LC may provide tonic input for basal respiratory drive and is involved in central chemosensitivity since focal acidosis of the region stimulates ventilation and ablation reduces CO(2)-induced ...
Gargaglioni, Luciane H.   +2 more
openaire   +4 more sources

Role of the locus coeruleus and basal forebrain in arousal and attention

open access: yesBrain Research Bulletin, 2022
Experimental evidence has implicated multiple neurotransmitter systems in either the direct or indirect modulation of cortical arousal and attention circuitry.
Eden B. Maness   +5 more
semanticscholar   +1 more source

The mechanistic link between selective vulnerability of the locus coeruleus and neurodegeneration in Alzheimer’s disease

open access: yesActa Neuropathologica, 2021
Alzheimer’s disease (AD) is neuropathologically characterized by the intracellular accumulation of hyperphosphorylated tau and the extracellular deposition of amyloid-β plaques, which affect certain brain regions in a progressive manner.
Billie J. Matchett   +3 more
semanticscholar   +1 more source

The Role of the Locus Coeruleus in Pain and Associated Stress-Related Disorders.

open access: yesBiological Psychiatry, 2021
The locus coeruleus (LC)-noradrenergic system is the main source of noradrenaline in the central nervous system and is involved intensively in modulating pain and stress-related disorders (e.g., major depressive disorder and anxiety) and in their ...
Irene Suárez‐Pereira   +5 more
semanticscholar   +1 more source

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