Results 41 to 50 of about 282,956 (245)
Subcortical evidence for a contribution of arousal to fMRI studies of brain activity
Nature Communications, 2018 Cortical activity during periods of rest is punctuated by widespread, synchronous events in both electrophysiological and hemodynamic signals, but their behavioral relevance remains unclear.
Xiao Liu +6 more
semanticscholar +1 more source
Light and Cognition: Roles for Circadian Rhythms, Sleep, and Arousal
Frontiers in Neurology, 2018 Light exerts a wide range of effects on mammalian physiology and behavior. As well as synchronizing circadian rhythms to the external environment, light has been shown to modulate autonomic and neuroendocrine responses as well as regulating sleep and ...
Angus S. Fisk +5 more
semanticscholar +1 more source
Personality and the EEG: Arousal and emotional arousability
Personality and Individual Differences, 1992 impulsivity and anxiety were derived from a joint analysis of the EPI and Karolinska Scales of Personality (KSP) questionnaires. The results showed, as expected. lower arousal, defined by more posterior theta activity, in impulsive subjects than in non-impulsives. These differences extended across all conditions.
openaire +4 more sources
Arousal Effects on Pupil Size, Heart Rate, and Skin Conductance in an Emotional Face Task
Frontiers in Neurology, 2018 Arousal level changes constantly and it has a profound influence on performance during everyday activities. Fluctuations in arousal are regulated by the autonomic nervous system, which is mainly controlled by the balanced activity of the parasympathetic ...
Chin-An Wang +5 more
semanticscholar +1 more source
Neurocalcin regulates nighttime sleep and arousal in Drosophila
eLife, 2019 Sleep-like states in diverse organisms can be separated into distinct stages, each with a characteristic arousal threshold. However, the molecular pathways underlying different sleep stages remain unclear. The fruit fly, Drosophila melanogaster, exhibits
Ko-Fan Chen +4 more
doaj +1 more source
Effects of Cognitive Arousal and Physiological Arousal on Sleep Perception [PDF]
Sleep, 2004 Two experiments were conducted to investigate the effect of presleep arousal on sleep perception. Experiment 1 examined the link between presleep cognitive arousal and distorted perception of sleep and compared the relative effect of anxious and neutral cognitive arousal on sleep perception.
Tang, N K, Harvey, A G
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Dynamic modulation of decision biases by brainstem arousal systems
eLife, 2017 Decision-makers often arrive at different choices when faced with repeated presentations of the same evidence. Variability of behavior is commonly attributed to noise in the brain’s decision-making machinery.
J. W. de Gee +5 more
semanticscholar +1 more source
Frontiers in Psychology, 2021 To prevent suicidal behaviors, it is crucial to understand the mechanisms and processes that enable an individual to act on suicidal thoughts. Suicide capability, which involves an increased pain tolerance and fearlessness of death, is a critical factor ...
Keyne C. Law +2 more
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A highly tunable dopaminergic oscillator generates ultradian rhythms of behavioral arousal
eLife, 2014 Ultradian (∼4 hr) rhythms in locomotor activity that do not depend on the master circadian pacemaker in the suprachiasmatic nucleus have been observed across mammalian species, however, the underlying mechanisms driving these rhythms are unknown. We show
Ian D Blum +6 more
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Frontiers in Computational Neuroscience, 2021 Appropriate levels of arousal potential induce hedonic responses (i.e., emotional valence). However, the relationship between arousal potential and its factors (e.g., novelty, complexity, and uncertainty) have not been formalized.
Hideyoshi Yanagisawa
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