Why Some People Find Exercise Harder Than Others: Emily Balcetis at TEDxNewYork (Transcript)

Emily Balcetis

Emily Balcetis – Psychologist

Vision is the most important and prioritized sense that we have. We are constantly looking at the world around us, and quickly we identify and make sense of what it is that we see. Let’s just start with an example of that very fact. I’m going to show you a photograph of a person, just for a second or two, and I’d like for you to identify what emotion is on his face. Ready? Here you go.

Go with your gut reaction. Okay. What did you see? Well, we actually surveyed over 120 individuals, and the results were mixed. People did not agree on what emotion they saw on his face. Maybe you saw discomfort. That was the most frequent response that we received. But if you asked the person on your left, they might have said regret or skepticism, and if you asked somebody on your right, they might have said something entirely different, like hope or empathy.

So we are all looking at the very same face again. We might see something entirely different, because perception is subjective. What we think we see is actually filtered through our own mind’s eye. Of course, there are many other examples of how we see the world through own mind’s eye. I’m going to give you just a few.

So dieters, for instance, see apples as larger than people who are not counting calories. Softball players see the ball as smaller if they’ve just come out of a slump, compared to people who had a hot night at the plate. And actually, our political beliefs also can affect the way we see other people, including politicians. So my research team and I decided to test this question.

In 2008, Barack Obama was running for president for the very first time, and we surveyed hundreds of Americans one month before the election. What we found in this survey was that some people, some Americans, think photographs like these best reflect how Obama really looks. Of these people, 75% voted for Obama in the actual election. Other people, though, thought photographs like these best reflect how Obama really looks. 89% of these people voted for McCain. We presented many photographs of Obama one at a time, so people did not realize that what we were changing from one photograph to the next was whether we had artificially lightened or darkened his skin tone.

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So how is that possible? How could it be that when I look at a person, an object, or an event, I see something very different than somebody else does? Well, the reasons are many, but one reason requires that we understand a little bit more about how our eyes work. So vision scientists know that the amount of information that we can see at any given point in time, what we can focus on, is actually relatively small.

What we can see with great sharpness and clarity and accuracy is the equivalent of the surface area of our thumb on our outstretched arm. Everything else around that is blurry, rendering much of what is presented to our eyes as ambiguous. But we have to clarify and make sense of what it is that we see, and it’s our mind that helps us fill in that gap. As a result, perception is a subjective experience, and that’s how we end up seeing through our own mind’s eye.

So, I’m a social psychologist, and it’s questions like these that really intrigue me. I am fascinated by those times when people do not see eye to eye. Why is it that somebody might literally see the glass as half full, and somebody literally sees it as half empty? What is it about what one person is thinking and feeling that leads them to see the world in an entirely different way? And does that even matter?

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