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NEW YORK … July 30, 2018 – According to a new study conducted by researchers at the Ben Gurion University of the Negev (BGU), not eating less by serving food on a plate smaller does not necessarily work. have found that when people are deprived of food, they are more likely to identify an exact portion no matter how it is served.
The new study, published in Appetite demystifies the popular trick based on Delbouef's illusion that people will identify sizes differently when they are placed in a larger object or smaller. The clbadic experience shows that people perceive that a similar black circle is smaller when it is embedded in a larger circle than when it is embedded in a smaller circle.
"The size of the plate does not matter as much as we think," says Dr. Tzvi Ganel, head of the Laboratory of Visual Perception and Action in the Department of Psychology at BGU. "Even if you're hungry and have not eaten, or try to cut back on portions, a serving pretty much looks like if it fills a smaller plate or is surrounded by an empty space on a larger one. "
In the first study to examine how food deprivation affects the perception of food in different contexts, Dr. Ganel and BGU Ph.D. student Noa Zitron-Emanuel found that people who do Had not eaten for at least three hours were more likely to correctly identify the proportions of pizza placed on trays larger and smaller than those who had eaten recently.
To the food. Both groups were similarly inaccurate when asked to compare the size of black circles and hubcaps placed in circles of different sizes. According to the researchers, this indicates that hunger stimulates a stronger badytical treatment that is not so easily fooled by the illusion.
"Over the past decade, restaurants and other food companies have used increasingly smaller dishes to conform to the perceptual prejudice that they will reduce food consumption," says Dr. Ganel. "This study debunks this notion: when people are hungry, especially when they are dieting, they are less likely to be deceived by the size of the plaque, more likely to realize that they are not going to be hungry. they eat less and are more likely to overeat later. "
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About American Associates, Ben Gurion University of the Negev
American Associates, l & # 39; Ben Gurion University of the Negev (AABGU) plays a vital role in supporting David Ben Gurion's vision: to create a world clbad institution of education and research in the Israeli desert, nurturing the Negev community and sharing the expertise of the University locally and around the world. As Ben Gurion University of the Negev (BGU) plans to reach the age of 50 in 2020, AABGU imagines a future that goes beyond the walls of the academic world. It's a future where BGU invents a new world and inspires a vision for a stronger Israel and its next generation of leaders. With its support, AABGU will help the University promote excellence in teaching, research and outreach to Negev communities for the next 50 years and beyond. Visit vision.aabgu.org to learn more.
AABGU, headquartered in Manhattan, has nine regional offices across the United States. For more information: /
Photo caption:
A perceptual illusion: The size of the pizza on both trays is the same. People are more likely to estimate more accurately the relative size of pizzas on both platters when they are hungry. Researchers at the Ben Gurion University of the Negev used these common comparisons of Delboeuf's illusions to test the participants in the study. Even though the inner circles are all the same size, most people perceive non-food images (Diagram 1) with the smallest background to be larger. When it applied to food, those who were hungry were less likely to be deluded by the illusion (Diagram 2).
Click here for diagram 1
Click here for Figure 2
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