Write a 1,250- to 1,500-word paper that includes the following:
- Explain the role of the nervous system.
- Describe the effect of fear, aggression, or anxiety on the specified behavior.
- Explain the function of the hormones involved and how they relate to the behavior.
- Describe the effects of regulatory impairments on the specified behavior.
Include a minimum of two to three peer-reviewed sources.
Format your paper consistent with APA guidelines.