arousal
arousal (n)
- plural
- arousals
English Definitions:
arousal, rousing (noun)
the act of arousing
"the purpose of art is the arousal of emotions"
arousal (noun)
a state of heightened physiological activity
arousal (noun)
awakening from sleep
foreplay, arousal, stimulation (noun)
mutual sexual fondling prior to sexual intercourse
arousal (Noun)
The act of arousing or the state of being aroused.
arousal (Noun)
Sexual arousal.
arousal (Noun)
A physiological and psychological state of being awake or reactive to stimuli, including elevated heart rate and blood pressure and a condition of sensory alertness, mobility and readiness to respond.
Arousal
Arousal is a physiological and psychological state of being awake or reactive to stimuli. It involves the activation of the reticular activating system in the brain stem, the autonomic nervous system and the endocrine system, leading to increased heart rate and blood pressure and a condition of sensory alertness, mobility and readiness to respond. There are many different neural systems involved in what is collectively known as the arousal system. Four major systems originating in the brainstem, with connections extending throughout the cortex, are based on the brain's neurotransmitters, acetylcholine, norepinephrine, dopamine, and serotonin. When these systems are in action, the receiving neural areas become sensitive and responsive to incoming signals.
Arousal
Arousal is the physiological and psychological state of being awoken or of sense organs stimulated to a point of perception. It involves activation of the ascending reticular activating system (ARAS) in the brain, which mediates wakefulness, the autonomic nervous system, and the endocrine system, leading to increased heart rate and blood pressure and a condition of sensory alertness, desire, mobility, and readiness to respond. Arousal is mediated by several neural systems. Wakefulness is regulated by the ARAS, which is composed of projections from five major neurotransmitter systems that originate in the brainstem and form connections extending throughout the cortex; activity within the ARAS is regulated by neurons that release the neurotransmitters acetylcholine, norepinephrine, dopamine, histamine, and serotonin. Activation of these neurons produces an increase in cortical activity and subsequently alertness. Arousal is important in regulating consciousness, attention, alertness, and information processing. It is crucial for motivating certain behaviours, such as mobility, the pursuit of nutrition, the fight-or-flight response and sexual activity (the arousal phase of Masters and Johnson's human sexual response cycle). It holds significance within emotion and has been included in theories such as the James–Lange theory of emotion. According to Hans Eysenck, differences in baseline arousal level lead people to be extraverts or introverts. The Yerkes–Dodson law states that an optimal level of arousal for performance exists, and too little or too much arousal can adversely affect task performance. One interpretation of the Yerkes–Dodson Law is the Easterbrook cue-utilisation hypothesis. Easterbrook states that an increase of arousal decreases the number.
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