I'm studying about perception in psychology. My teacher has an example.
In an experiment, the researcher gives two groups a photo of one person. To Group 1, researcher says "This is a scientist", group 1 usually reacts "He has a bright and intelligent face, great mind are shown on his eyes". To group 2, researcher says "This is a murder", group 2 usually reacts "He had a dangerous face, he seems angry all the time".
How do you explain that using perception in psychology? does that experiment truly exist? Is there any real similar experiment?
Someone tells me it's because of "Confirmation Bias". It's the tendency to search for, interpret, favor, and recall information in a way that confirms one's preexisting beliefs or hypotheses. I doubt it.