The physiological reaction to threat in which the autonomic nervous system mobilizes the organism for action was first identified by

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Walter Cannon was the first to identify the physiological reaction to threat, which he called the fight-or-flight response. He discovered that the autonomic nervous system mobilizes the body for action by releasing hormones such as adrenaline and noradrenaline.

The Physiological Reaction to Threat in Which the Autonomic Nervous