This decreased intensity perception further guided subjects to choose taste solutions with higher concentrations to compensate and to consume more of those taste solutions. The authors showed that this workload task led to a decreased taste intensity perception. In this memory task, the participants had to remember either digits or consonants. Our study aims to explore if playing video games can alter the way we perceive odors which could be a reason for the increased food intake.Īn experiment by van der Wal and van Dillen (2013) used a memory task to simulate cognitive load.
TETRIS FULL SCREEN PC
While mobile gaming remained the largest segment, taking up 45% of the global games market, console gaming grew to 32% of the global games market and PC gaming accounted for 23% of the global games market ( Wijman, 2019). In 2019, the number of gamers has increased to 2.5 billion who spent about $152.1 billion on games ( Wijman, 2019). In 2018, there were about 2.3 billion gamers worldwide who spent about $137.9 billion on games with mobile gaming being the largest segment (51%), followed by console gaming (25%) and PC gaming (24%) ( Wijman, 2018). Playing a video game leads to an acute stress response that is associated with increased food intake ( Siervo et al., 2018), and the number of people playing video games, also called gamers, is rising.
TETRIS FULL SCREEN TV
Furthermore, a study by Braude and Stevenson (2014) led to the conclusion that people who regularly watch TV while eating have a higher snack intake in comparison to people who do not regularly eat while watching TV. (2014) indicated that young adults aged 22–35 years who play video games on a regular basis are more likely to be overweight. The reason for this development is our obesogenic environment with the main factors being an energy intake that excesses the energy needs, calorie-dense, nutrient-poor food choices, and low physical activity ( Hruby and Hu, 2015). The prevalence of obesity and overweight in developed countries in childhood especially increased between 19, from 17 to 24% for boys and from 16 to 23% for girls ( Wise, 2014). That number went up to over 2.1 billion people in 2014 indicating an increase of 28% among adults and 47% increase among children ( Wise, 2014). The number of obese and overweight people worldwide in 1980 was 857 million ( Wise, 2014). Overweight and obesity are a growing problem for adults, as well as for children.
We conclude that odor intensity estimation is influenced by real-life cognitive tasks which might in turn lead to overeating while distracted.
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Our behavioral data indicates a significant decrease in intensity estimates of food odors and non-food odors during the high compared to low cognitive load condition.
TETRIS FULL SCREEN SKIN
A higher skin conductance response (SCR) along with a decrease in task performance verified that the higher difficulty level leads to a higher cognitive load. The participants played a low or high difficulty version of Tetris while presented with odors of food and non-food items. Since flavor perception is accomplished not only by the sense of taste but also the sense of smell, we investigated the influence of cognitive load created by playing a video game on odor intensity perception. Further, it has been established that both, watching TV or playing video games lead to an increased snack intake and a lower rating of perceived taste intensity. Previous studies have shown that people who are regularly distracted by playing videogames or watching TV while eating are more likely to be overweight and that the number of people that are gaming worldwide is rising. Overweight and obesity are considered a huge problem in modern societies.
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