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Posts tagged with Perception


Depth Perception

Embed not working well – click the Youtube logo to watch it there – it’s worth it….

It seems our expectation about what we eat directly affects how hungry or satisfied we feel afterwards. In one study, when participants ate soup, not knowing that there was a hidden pump connected to their soup bowl which could surreptitiously alter the amount of soup available once eating started, their reported satiety related to how much soup they perceived  they had consumed and not the actual amount.

That experiment was adapted from one using fruit smoothies where participants were shown either a small or a large portion of fruit ‘used’ to make their smoothie. Their perception of satiety was directly linked to their perception of the quantity of fruit seen.

These findings, if reliable and valid, have real implications. When we consume a diet drink or food, or a reduced calorie or reduced sugar/fat food, does this affect how we feel afterwaards?  Do we feel hungry again much sooner because of our perception? If this is so, then using different descriptions might have a beneficial effect on those people who are trying to lose weight. One famous firm has for some time been marketing ‘hearty’ soups – this may have been a very smart move!

May 18, 2010  The death of Richard Gregory was announced on Monday of this week. He was an extremely well-known figure in Psychology, most notably for his work on visual illusions and his classic book Eye and Brain. His website has examples of some of his illusions. He also researched artificial intelligence, was an inventor with many patents to his name and founded the At-Bristol hands-on Science Museum, as well as appearing frequently on radio and TV.

I had the privilege of hearing him speak on several occasions and felt he had quite a magical ability to communicate enthusiasm and ideas.

Interesting footnote – Gregory was taught by Frederic Bartlett as an undergraduate and claimed Bartlett inspired him to take up psychology.

In November 2004 52 year old Diana Duyser from Florida USA, sold on e-bay a grilled cheese sandwich she had made ten years previously for $28,000 and in the process had 1.7 million hits to this particular e-bay item.toasted_sandwich_2.jpgWhy such interest in a frankly inedible piece of food? Well quite simply because there in the cheese toastie was the quite discernible face of the Virgin Mary and ever since the toasted treat had been in her possession, Ms.Duyser claimed to have had nothing but good luck.However this is not such an isolated incident. People have been seeing faces in all sorts Read the rest of this entry »