---
title: "ADHD — AP Psychology Definition & Exam Guide"
description: "ADHD is a neurodevelopmental disorder marked by inattention, impulsivity, and hyperactivity. Learn how Topic 8.3 tests it alongside autism spectrum disorder."
canonical: "https://fiveable.me/ap-psych-revised/key-terms/attention-deficit-hyperactivity-disorder"
type: "key-term"
subject: "AP Psychology"
---

# ADHD — AP Psychology Definition & Exam Guide

## Definition

Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder characterized by persistent patterns of inattention, impulsivity, or hyperactivity that interfere with functioning or development.

## Related Study Guides

- [8.3 Neurodevelopmental and Schizophrenic Spectrum Disorders](/ap-psych-revised/unit-8/neurodevelopmental-schizophrenic-spectrum-disorders/study-guide/UeIxH8UvART97L3IQnGx)

## Review

### Related Terms

- Executive Functioning: These are mental processes that help connect past experience with present action. People use it to perform activities such as planning, organizing, strategizing, paying attention to details, managing time and space etc.
- Hyperfocus: An intense form of mental concentration or visualization that focuses consciousness on a subject, topic, or task.
- [Impulsivity](/ap-psych-revised/key-terms/impulsivity): A tendency to act on a whim, displaying behavior characterized by little or no forethought, reflection, or consideration of the consequences.