In 1972, a British newspaper published pictures of a "Loch Ness Monster." Many people readily perceived photographs of a floating tree trunk as the partially submerged monster. This illustrates the powerful influence of

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The phenomenon described in the scenario - people perceiving a floating tree trunk as the Loch Ness Monster - is an example of perceptual set. Perceptual set refers to the mental tendencies and assumptions that affect how we perceive incoming information. In this case, people already had a preconceived idea of what the Loch Ness Monster looked like, so their perceptual set influenced how they interpreted the photographs.

In 1972, a British Newspaper Published Pictures of a "Loch