The document describes an experiment that tested whether interpretation of an ambiguous stimulus is influenced by immediate past experiences, known as perceptual set. Participants were shown either animal pictures or human face pictures and then an ambiguous figure that could be seen as either an animal or face. Those who saw animals first were more likely to see the ambiguous figure as an animal, supporting the hypothesis that perceptual set impacts interpretation. The experiment provided evidence that our past experiences influence how we perceive ambiguous stimuli.