Arousal Arc Slides Presentation STRESS SPARKS
Analyzing the Yerkes-Dodson Law & The Biology of Memory
AP Psychology / Behavioral Science
The Mysterious Curve
Warm-up: What is happening here?
Axis X: [ ? ] Axis Y: [ ? ]
Look at the peak. Why does "more" of something eventually lead to "less" of something else?
Case Study: Elizabeth Cox
Embedded media
Watch for the Rat Study [1:58] and pay close attention to the Prefrontal Cortex at the end.
The Memory Paradox
Stage 1: Encoding
Moderate stress (corticosteroids) activates the Amygdala .
Signals the Hippocampus to prioritize the memory.
Result: Stronger memory formation.
Stage 2: Retrieval
Stress chemicals stimulate the Amygdala to bark at the PFC.
The Prefrontal Cortex (logic/recall) is inhibited.
Result: The mind goes blank.
The Yerkes-Dodson Law
"Performance increases with physiological or mental arousal, but only up to a point. When levels of arousal become too high, performance decreases."
Low
Boredom
Optimal
Peak Performance
High
Panic
Seminar Discussion
1. How does the distinction between encoding and retrieval complicate the simple "inverted U" of Yerkes-Dodson?
2. Evolutionarily, why would our brains prioritize the Amygdala (fight/flight) over the Prefrontal Cortex (complex thought) during high stress?
3. If you could "spray" a student with moderate stress hormones 5 minutes before they study, would you? Why or why not?
Ataraxia
"A state of calmness, free from anxiety."
Simulation
Study in test-like conditions to reduce novelty stress.
Deep Breathing
Physically signals the body that the "bear" is gone.
Exercise
Burns off excess cortisol and improves long-term sleep.
Curve Catchers Worksheet Curve Catchers
Warm-up: Decoding the Relationship
Name:
Date:
The Hypothesis
Below is a classic psychological graph known as an Inverted-U Curve . Look at the shape of the line and how it changes from the far left to the center, and from the center to the far right.
Label X: [ ? ] Label Y: [ ? ]
1. What does the X-axis represent?
2. What does the Y-axis represent?
Think Like a Psychologist
"Based on this curve, describe what happens to performance as a person's stress or arousal level moves from 'Moderate' to 'Extreme'."
Keep this worksheet on your desk. We will check your hypothesis after the video.
Pressure Points Activity Worksheet Pressure Points
Memory & Arousal Case Studies
Psychology Lab
SEC-04
Student Identity
Name:
Date of Observation
Date:
Instructions
For each scenario below, determine the Stage of Memory being impacted (Acquisition/Consolidation OR Retrieval) and predict the Likely Outcome based on the logic of the Yerkes-Dodson Law and the neurobiology of stress.
1
The SAT Study Session
Maya is studying for the SATs. She is slightly nervous because the test is important, but she feels "in the zone." She has a timer set and is focused on a difficult reading passage. Her heart rate is slightly elevated, and she feels a moderate sense of urgency.
Arousal Level & Memory Stage
Predicted Outcome
2
The Fender Bender
Leo is walking down the street when he witnesses a loud car accident. He is startled and his heart begins racing. He immediately calls 911. The police ask him to describe the license plate of the car that sped away 30 seconds ago.
Arousal Level & Memory Stage
Predicted Outcome
3
The Surprise Biology Quiz
Sam walks into Biology class and the teacher announces a surprise quiz on cell mitosis—a topic Sam studied thoroughly last night. Sam immediately feels a wave of panic and "fight or flight" kicks in. When he looks at the first question, his mind feels like a blank slate.
Arousal Level & Memory Stage
Predicted Outcome
Lab Conclusion
Why is it that stress can be both a "friend" to memory and a "foe" depending on the timing? Explain using the roles of the Amygdala and the Prefrontal Cortex.
Calm Core Journal Reflection Calm Core
Post-Lesson Reflection
Subject: Psychology
Finding Ataraxia
In the video, "Ataraxia" is defined as a state of calmness, free from anxiety. According to the Yerkes-Dodson Law, being too relaxed (bored) or too stressed (panic) leads to poor performance.
"Think about a time your mind 'went blank' or you felt overwhelmed. Based on what you learned about the Prefrontal Cortex and Amygdala, what are two specific strategies you will use next time to move yourself from the 'Panic Zone' back to the 'Optimal Arousal Zone'?"
Strategy 01
Strategy 02
"The mind is like water. When it is turbulent, it's difficult to see. When it is calm, everything becomes clear."
Stress Signal Teacher Guide Facilitator Guide
Stress Sparks
Memory & The Yerkes-Dodson Law
Psychology
Time: 45 Minutes
Core Objectives
Define and graph the Yerkes-Dodson Law .
Differentiate between the impact of stress on Encoding vs. Retrieval .
Apply neurobiological concepts (Amygdala/PFC) to real-world stress scenarios.
Lesson Flow & Pacing
05 Min
Warm-up: Curve Catchers
Students hypothesize axes (X = Arousal/Stress, Y = Performance).
05 Min
Video Presentation
Watch "Does stress affect your memory?". Focus on the rat study (1:58).
15 Min
Socratic Seminar
Discuss the "Blank Mind" phenomenon and evolutionary trade-offs.
15 Min
Pressure Points Activity
Case study analysis in pairs or small groups.
05 Min
Calm Core Reflection
Individual synthesis and personal application.
Vocabulary
• Hippocampus
• Amygdala
• Prefrontal Cortex
• Corticosteroids
• Consolidation
• Ataraxia
Pro-Tip
"The 'Blank Mind' explanation is a huge validator for students. Emphasize that it's a biological reflex , not a failure of intelligence."
Answer Key: Pressure Points
1. The SAT Study Session
Arousal/Stage: Moderate arousal; Encoding (Acquisition & Consolidation).
Outcome: Improved performance. Corticosteroids help the hippocampus prioritize this information.
2. The Fender Bender
Arousal/Stage: High arousal; Encoding (Acquisition) and very immediate Retrieval.
Outcome: Mixed/Poor. While the event will be consolidated strongly (emotional memory), the immediate retrieval of the plate number is inhibited by the amygdala barking at the PFC.
3. The Surprise Biology Quiz
Arousal/Stage: High arousal; Retrieval.
Outcome: Poor. The prefrontal cortex is inhibited, leading to a "mind blank" despite high preparation.
Lab Conclusion Guidance
Students should explain that stress helps Encoding because corticosteroids signal the Hippocampus to lock in memories. However, it hurts Retrieval because the Amygdala inhibits the Prefrontal Cortex to prioritize "fight or flight" responses over logical recall.
