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Figure 1 | Behavioral and Brain Functions

Figure 1

From: Can sustained arousal explain the Chronic Fatigue Syndrome?

Figure 1

Normal arousal response, according to the Cognitive activation theory of stress (CATS). A threat to homeostasis elicits an arousal response, characterized by nervous and endocrine adjustments aiming at regaining homeostatic stability (1). This compensatory mechanism is mutually connected to cognitive processes; in addition, it is influenced by personality, genetic traits and sensitization (2). If successful, i.e. if homeostasis is restored, the arousal response is turned off (3).

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