---
title: "Gate Control Theory — AP Psychology Definition & Exam Guide"
description: "Gate Control Theory says a 'gate' in your spinal cord opens or closes to let pain signals reach the brain. Learn how it shows up on the AP Psych exam."
canonical: "https://fiveable.me/ap-psych-revised/key-terms/gate-control-theory"
type: "key-term"
subject: "AP Psychology"
---

# Gate Control Theory — AP Psychology Definition & Exam Guide

## Definition

The Gate Control Theory is a theory in psychology that explains how the brain regulates and modulates the perception of pain. It suggests that there is a "gate" in the spinal cord that can either open or close to allow or block pain signals from reaching the brain.

## Review

### Related Terms

- [Perception](/ap-psych-revised/key-terms/perception): The process by which we interpret and make sense of sensory information, including pain signals.
- [Nociceptors](/ap-psych-revised/key-terms/nociceptors): Specialized sensory receptors throughout our body that detect painful stimuli.
- [Endorphins](/ap-psych-revised/key-terms/endorphins): Neurotransmitters produced by our body that can help reduce feelings of pain.