When the sympathetic nervous system is activated, peripheral vision can be reduced by what percentage?

Activation of the sympathetic nervous system is part of the body's natural response to stress or perceived threats, often referred to as the "fight or flight" response. When this system is activated, the body prioritizes survival mechanisms, and one of the physiological changes involves how we perceive our environment.

Research indicates that under stress or during moments of heightened activity, peripheral vision can be significantly compromised. The correct percentage reduction is approximately 70%. This reduction occurs because the body focuses on the central aspect of vision to aid in quick decision-making and respond to immediate dangers, effectively narrowing the field of vision.

This focus enhances the perception of what is directly in front and enhances the ability to react quickly to threats. Peripheral vision, which is essential for awareness of surroundings, becomes less acute as the body prioritizes more immediate stimuli. Understanding this response is crucial for those in law enforcement and self-defense applications, as it highlights the need to be aware of potential limitations in vision during high-stress scenarios.