Chapter 17.

Introduction

Student Video Activities for Abnormal Psychology
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Fight-or-Flight: How Stress Affects Psychological and Bodily Functioning

Author: Ronald J. Comer, Princeton University

Photo Credit: Photodisc

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17.1 Fight-or-Flight: How Stress Affects Psychological and Bodily Functioning

This video features the running of the bulls in Pamplona, Spain, which continues to be a popular event despite the fact that many people have been gored or even killed since its inception. In particular, the video focuses on one man who is running with the bulls. His physiological reactions - heart rate and cortisol levels - are monitored before, during, and after his participation. As you watch the video, consider what it reveals about the nature of the body’s fight-or-flight response to danger.

Fight-or-Flight

Pamplona, Spain. The place where danger is sought and survival instincts are put to the test. Every year, during the festival of San Fermin, people come from all over the world to run with the bulls. It's the ultimate adrenalin rush.

Since the Bull Run began, hundreds of people have been horribly gored, and many have lost their lives. Thousands invade Pamplona to experience the sheer thrill of facing death.

This summer, firefighter Andy [INAUDIBLE] is one of them.

At home, I had a lot of friends tell me I'm crazy. But it's something I've always wanted to do ever since I was a teenager, and finally put some money together, and here it is. Hopefully, it's the first of many trips to Pamplona.

Andy's agreed to take part in our experiment to see how the body responds at moments of acute danger, like being chased by six angry bulls.

Okay, we got a heart rate monitor here. It's gonna go around my torso.

He'll be wired up to a whole variety of medical sensors. First, a heart rate monitor. This will relay information to a special watch he'll wear on his wrist.

Looks like it's fluctuating between 104 and 110. That's a little high. I can feel my heart beating in my chest right now. This blood pressure cuff is going to go on my left wrist. We're going to get a blood pressure reading right now, see how excited I am about a hour and 15 minutes before the run. Got 159 over 112, so it's a little high already. Finally, I'm going to put a swab in my mouth. It's going to measure the cortisol level. It's a stress hormone.

The body chemical cortisol is closely associated with adrenalin. Adrenalin may say Andy's life, enabling him to run faster than he's ever done before. Now that Andy is rigged and ready, all he has to do is to wait.

I feel excited. It's an hour before the run, and we've watched them erect the barriers. I'm ready to go. The possibility of death by a bull, it's there. It's real. It's in the back of my mind.

The bulls are released. Andy waits for them to come near. In the tradition of the Bull Run, the challenge is to get as close to a charging bull as you dare without getting gored. The bulls are just inches away, and Andy's body is flooded with a massive burst of adrenalin. His cortisol levels more than double. From a normal resting rate of 72 beats per minute, Andy's heart rate rockets, tripling to an amazing 230 beats per minute.

Definitely in fear. You're definitely in fear. You can feel the stomp of the feet and the hooves, everything. It's-- wow. It's incredible.

The fear instincts that we rely on to save our lives are immensely powerful. So it's very difficult to turn them off at will.

17.2 Check Your Understanding

Question 17.1

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Correct!
Incorrect.

Question 17.2

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Correct!
Incorrect.

Question 17.3

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Correct!
Incorrect.

Question 17.4

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Correct!
Incorrect.

17.3 Activity Completed!

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