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    1. Neuroscience

    A highly tunable dopaminergic oscillator generates ultradian rhythms of behavioral arousal

    Ian D Blum et al.
    An internal clock based on brain levels of dopamine works with the circadian clock to maintain daily patterns of alertness and activity, and may be implicated in the altered behavioral patterns seen in schizophrenia and bipolar disorder.
    1. Neuroscience

    Cortico-autonomic local arousals and heightened somatosensory arousability during NREMS of mice in neuropathic pain

    Romain Cardis et al.
    Neuropathic pain preserves mouse sleep in architecture and characteristic spectral bands but perturbs arousability in ways reminiscent of insomnia disorders, in which hyperarousal and hyperalertness to environmental stimuli are prevalent.
    1. Neuroscience

    Dynamic behavior of the locus coeruleus during arousal-related memory processing in a multi-modal 7T fMRI paradigm

    Heidi IL Jacobs et al.
    By combining ultra-high-field imaging with physiological and saliva measures it is established that interactions between locus coeruleus, hippocampus and amygdala vary along emotional memory stages, putatively reflecting distinct cognitive states.
    1. Neuroscience

    Local cortical desynchronization and pupil-linked arousal differentially shape brain states for optimal sensory performance

    Leonhard Waschke et al.
    The momentary levels of local cortical desynchronization and pupil-linked arousal pose dissociable influences not only on the processing of sensory information but also on human perceptual performance.
    1. Neuroscience

    Vocal and locomotor coordination develops in association with the autonomic nervous system

    Morgan L Gustison et al.
    Marmoset monkeys develop their vocal behavior prior to their postural and locomotor skills, but the coordination of these two motor systems emerges gradually via changes in arousal level.
    1. Neuroscience

    Frequency-selective control of cortical and subcortical networks by central thalamus

    Jia Liu et al.
    Central thalamus relay neurons dynamically switch the activity of cortical and subcortical networks at distinct frequencies, providing a mechanism for this region's role in arousal regulation.
    1. Neuroscience

    Neurovascular coupling and bilateral connectivity during NREM and REM sleep

    Kevin L Turner et al.
    Sleep-related hemodynamic signals are much larger than those in the awake brain, so it is crucial to monitor the arousal state during studies of spontaneous activity.
    1. Neuroscience

    Different types of theta rhythmicity are induced by social and fearful stimuli in a network associated with social memory

    Alex Tendler, Shlomo Wagner
    Variations in the frequency of theta brain waves enable a single network of brain regions to generate appropriate responses to stimuli with different kinds of emotional value.
    1. Neuroscience

    Norepinephrine is required to promote wakefulness and for hypocretin-induced arousal in zebrafish

    Chanpreet Singh et al.
    Experiments in genetically modified zebrafish that are unable to produce norepinephrine show that this neurotransmitter promotes wakefulness by mediating the effects of the neuropeptide hypocretin.
    1. Neuroscience

    Tinnitus and hyperacusis involve hyperactivity and enhanced connectivity in auditory-limbic-arousal-cerebellar network

    Yu-Chen Chen et al.
    A comprehensive battery of behavioral, electrophysiological and functional MRI techniques has allowed the development of a data-driven conceptual model of the tinnitus-hyperacusis network.