Question

Janis volunteered to participate in a psychology experiment. When she arrives at the lab, a lab assistant standing on the other side of a counter greets her. The lab assistant explains the informed consent procedure and asks her to sign the form. As the lab assistant reaches for the form he drops it behind the counter. He drops down behind the counter to pick up the form, but, unbeknownst to Janis, another person stands up holding the form. After Janis signs the form, she is asked if she noticed the change. She replies that she did not. This phenomenon is known as: blindsight. inattentional blindness. change blindness. the cocktail party effect. visual interaction.

Answer 1

The phenomenon is known specifically as change blindness.

Step-by-step explanation:

This is a phenomenon where the observer has fails to notice the differences that have been laid out to him or her when a certain visual stimulus is triggered or the observer is exposed to.