FEAR System

Question 1

What is the FEAR circuit in the brain?

Answer 1

The circuit that runs between the central Amygdala and the Periaqueductal Gray of the midbrain

This circuit is crucial for processing fear responses in the brain.

Question 2

What are the 5F responses associated with the FEAR system?

Answer 2

• Freeze
• Flight
• Fight
• Faint
• Flirt

These responses describe various ways organisms react to fear.

Question 3

How do anxiolytic drugs affect the FEAR system?

Answer 3

They ameliorate anxiety by modulating the FEAR system

Anxiolytics are medications that reduce anxiety.

Question 4

Describe the progression of FEAR responses at different intensities.

Answer 4

At low intensities, animals move slowly and carefully; at medium intensity, they may freeze or fidget; at high intensity, they may exhibit flight, fight, or faint

This progression indicates that fear responses become more pronounced with increasing fear intensity.

Question 5

What happens to movement at the highest intensity of fear?

Answer 5

Movement may cease entirely during the faint response

This reflects the extreme nature of the faint response compared to other fear responses.

Question 6

True or False: Higher intensity fear responses are characterized by more rational behavior.

Answer 6

False

Higher intensity fear responses tend to be more irrational and uncontrolled.

Question 7

Fill in the blank: The FEAR system is involved with the _______ responses.

Answer 7

[5F]

The 5F responses are critical to understanding how fear manifests in behavior.