The experts explained that when your senses are engaged elsewhere, you are less likely to be able to adjust how much extra food or drink you consume. They referred to this behavior as “inattentive eating.”

“Our study suggests that if you’re eating or drinking while your attention is distracted by a highly engaging task, you’re less likely to be able to tell how full you feel,” said study co-author Professor Martin Yeomans.”You’re more likely to keep snacking than if you’d been eating while doing something less engaging.”

“This is important for anyone wanting to stay a healthy weight: if you’re a habitual TV-watching snacker – watching, say, an engaging thriller or mystery, or a film with a lot of audio or visual effects – you’re not likely to notice when you feel full. Video-gamers and crossword solvers should also take note!”

The study involved 120 participants, who were assigned tasks that required either a high or a low level of attention. They were also given drinks with either high or low calories. Next, while still engaged their tasks, the participants were given a snack to eat.

By contrast, the individuals who were engaged in a task that was less demanding adjusted the amount of snacks they consumed. In this group, participants ate nearly half as many crisps after the high energy drink compared to the low energy drink.

Previous studies have shown that when perceptual demand is high, and the senses are fully engaged, the brain filters out some sensory information. The current study is the first to demonstrate that nutrient cues associated with becoming full can be filtered out in this manner.

“We already knew that feeling full could be affected by the texture and appearance of food, as well as pre-existing expectations about how full we think a type of food should make us feel,” said Professor Yeomans. “Now we also know that feeling full depends on how much sensory information our brains are processing at the time.”

The findings provide the very first evidence that Load Theory of attention, or the idea that a person can only handle a limited amount of sensory information at any given time, can be applied to eating habits.

Source: Why eating gets out of hand in front of the TV • Earth.com

Here’s what a meal at a virtual reality dining experience tastes like

Direct touch of food makes eating experience more enjoyable

Next-level eating, powered by virtual reality goggles

Random sensory quotes

The smells are very strong on ‘Game of Thrones’: the incense, the fire, the heat of all the burns. The smell of Lancel’s Faith Militant cloth is very thick in my nostrils right now. And I think the warmth of it all: the hard work ethics, the ambiance, the temperature of the set. There are so many sensory memories of it, which will never leave me.

— Eugene Simon