To Build Consensus, Part 2

When addiction is the topic, there are all sorts of side roads to wander down, like the Rat Park experiment, in which rodents were given the opportunity to live in a community, and the wherewithal to engage in interesting and satisfying activities. In this environment, they surprised everybody, except Prof. Bruce Alexander, by ignoring the free dope dispenser.

Another group that confounded expectations was the heroin-addicted Vietnam veterans, as mentioned by Dr. Pretlow in the presentation introduced in the previous post. Once their life situation was improved by getting out of the war zone, most of them dropped the habit with few repercussions.

This is one of the odd circumstances that causes some experts to suspect that maybe it’s not the food or the additives, or even the urge to eat incessantly, that causes obesity. Maybe it is the environment, both outer and inner. In many ways, it appears that a person’s life situation has a lot to do with their predilection to become addicted.

This leads, in the presentation, to a discussion of the life situation experienced by an animal who “cannot readily face, yet cannot avoid, situations involving uncertainty, confusion, conflict, or feeling trapped, threatened, or thwarted.” Animals feel stress, just like people, and react to it in ways that might tell us something about ourselves.

Addictive behavior

To Dr. Pretlow’s mind, the universal source of addictive behavior is displacement, an “innate, instinctual biobehavioral mechanism.” It is an adaptation strategy, nature’s way of ending a standoff. The stress of finding oneself torn between two opposing drives, like fight and flight, generates a lot of brain energy.

When two opposing drives are in equilibrium, that energy can be channeled into a third behavior, which fulfills certain qualifications. The stalemate can be broken by a displacement activity.

This is about how the brain copes with overflow mental energy, and how it can be persuaded to handle things differently. Animals engage in displacement behavior in stressful situations, like when threatened by a predator. Or, it could be not necessarily when life is directly threatened, but when their sense of how things should be is violated.

In the presentation, the example is given of a cat that was upset when a strange cat came into the house and ate its food. The victim was so stressed out that it would lick itself so vigorously that eventually the fur was removed, down to bare skin and beyond. Normally, an animal is presumed not to do anything against its very strong instinct for survival. But in this kind of impasse, it will even harm itself, which suggests to the observer that the urge must be irrepressible.

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Image by Pat Hartman

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Profiles: Kids Struggling with Weight

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OVERWEIGHT: What Kids Say explores the obesity problem from the often-overlooked perspective of children struggling with being overweight.

About Dr. Robert A. Pretlow

Dr. Robert A. Pretlow is a pediatrician and childhood obesity specialist. He has been researching and spreading awareness on the childhood obesity epidemic in the US for more than a decade.
You can contact Dr. Pretlow at:


Dr. Pretlow’s invited presentation at the American Society of Animal Science 2020 Conference
What’s Causing Obesity in Companion Animals and What Can We Do About It

Dr. Pretlow’s invited presentation at the World Obesity Federation 2019 Conference:
Food/Eating Addiction and the Displacement Mechanism

Dr. Pretlow’s Multi-Center Clinical Trial Kick-off Speech 2018:
Obesity: Tackling the Root Cause

Dr. Pretlow’s 2017 Workshop on
Treatment of Obesity Using the Addiction Model

Dr. Pretlow’s invited presentation for
TEC and UNC 2016

Dr. Pretlow’s invited presentation at the 2015 Obesity Summit in London, UK.

Dr. Pretlow’s invited keynote at the 2014 European Childhood Obesity Group Congress in Salzburg, Austria.

Dr. Pretlow’s presentation at the 2013 European Congress on Obesity in Liverpool, UK.

Dr. Pretlow’s presentation at the 2011 International Conference on Childhood Obesity in Lisbon, Portugal.

Dr. Pretlow’s presentation at the 2010 Uniting Against Childhood Obesity Conference in Houston, TX.

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