Final answer:
Anxiety involves the amygdala and limbic system, triggering a fight-or-flight response and the release of stress hormones. Cognitive processing also plays a significant role in the experience of anxiety.
Step-by-step explanation:
Anxiety is primarily guided through the amygdala and other limbic structures in the brain. The amygdala is responsible for triggering the sympathetic fight-or-flight response, and it works in conjunction with the hypothalamus to initiate the release of stress hormones in response to stress or anxiety-inducing stimuli.
Cognitive processes, including attention and interpretation of threats, as well as hormonal and sensory inputs, contribute to the overall experience of anxiety. Additionally, different brain regions and neurochemical systems such as the CRF (corticotropin-releasing factor) and noradrenergic systems are implicated in the modulation of anxiety.