Results 101 to 110 of about 411,191 (267)

Human brain matters: Navigating the neuropathology of COVID‐19

open access: yesBrain Pathology, EarlyView.
Severe COVID‐19 is associated with vascular dysregulation and chronic neuroinflammation, leading to axonal injury and neurodegeneration. In long COVID or PASC, persistent alterations in neuroimaging and biofluid biomarkers reflect ongoing neuronal damage and neuroinflammation, contributing to long‐term neurological symptoms including fatigue, cognitive
Juliana M. Nieuwland   +4 more
wiley   +1 more source

Role of the locus coeruleus arousal system in cognitive control

open access: yesJournal of neuroendocrinology, 2020
Cognitive control lies at the core of human adaptive behaviour. Humans vary substantially in their ability to execute cognitive control with respect to optimally facing environmental challenges, although the neural origins of this heterogeneity are ...
M. Grueschow, Birgit Kleim, C. Ruff
semanticscholar   +1 more source

The Locus Coeruleus in Chronic Pain

open access: yesInternational Journal of Molecular Sciences
Pain perception is the consequence of a complex interplay between activation and inhibition. Noradrenergic pain modulation inhibits nociceptive transmission and pain perception. The main source of norepinephrine (NE) in the central nervous system is the Locus Coeruleus (LC), a small but complex cluster of cells in the pons.
Jorge Castejón España   +2 more
openaire   +2 more sources

Glucocorticoids and HPA axis regulation in the stress–obesity connection: A comprehensive overview of biological, physiological and behavioural dimensions

open access: yesClinical Obesity, Volume 15, Issue 2, April 2025.
Summary Chronic stress, characterized by increased long‐term exposure to the glucocorticoid hormone cortisol, is increasingly linked to obesity development. Still, various knowledge gaps persist, including on underlying pathophysiological mechanisms. The aim of the current review is to provide the latest insights on the connection between stress and ...
Robin Lengton   +4 more
wiley   +1 more source

LOCUS COERULEUS NOREPINEPHRINE IN ACTIVE AVOIDANCE AND REWARD SEEKING BEHAVIOR [PDF]

open access: yes
Cue driven behavior relies on the ability to appropriately respond to stimuli in the environment to obtain resources (food, water, etc.) or avoid threats/danger.
Rodberg, Ellen
core   +1 more source

New approaches for the quantification and targeting of noradrenergic dysfunction in Alzheimer's disease

open access: yesAnnals of Clinical and Translational Neurology, 2022
There is clear, early noradrenergic dysfunction in Alzheimer's disease. This is likely secondary to pathological tau deposition in the locus coeruleus, the pontine nucleus that produces and releases noradrenaline, prior to involvement of cortical brain ...
Michael David, Paresh A. Malhotra
doaj   +1 more source

Attenuated selective attention during visual perspective taking in autism: A combined behavior, ERP, and pupillometry study

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background Altered social cognition in autism may be influenced by difficulties in domain‐general functions, such as selective attention. Here, we manipulated the requirement for selective attention during a visual perspective taking (VPT) task and used neurophysiological indices to delineate underlying mechanisms.
Leonie Polzer   +7 more
wiley   +1 more source

Locus coeruleus syndrome as a complication of tectal surgery [PDF]

open access: yes, 2015
We describe a case of a 48-year-old woman who underwent a resection of a tectal pilocytic astrocytoma complicated by a sequence of fluctuating consciousness, psychosis with complex hallucinations and lasting sleeping disturbances in which she vividly ...
Kronenburg, Annick   +5 more
core   +1 more source

Repetitive Transcranial Electrical Stimulation Induces Quantified Changes in Resting Cerebral Perfusion Measured from Arterial Spin Labeling

open access: yesNeural Plasticity, 2018
The use of transcranial electrical stimulation (TES) as a method to augment neural activity has increased in popularity in the last decade and a half. The specific application of TES to the left prefrontal cortex has been shown to produce broad cognitive
Matthew S. Sherwood   +3 more
doaj   +1 more source

Relationships between pupil diameter and neuronal activity in the locus coeruleus, colliculi, and cingulate cortex

open access: yesNeuron, 2015
SUMMARY Changes in pupil diameter that reflect effort and other cognitive factors are often interpreted in terms of the activity of norepinephrine-containing neurons in the brainstem nucleus locus coeruleus (LC), but there is little direct evidence for ...
S. Joshi, Yin Li, R. Kalwani, J. Gold
semanticscholar   +1 more source

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