Schachter and Wheeler's study demonstrated that people who unknowingly received an injection of a stimulant tended to rate a movie as being funnier than participants who received either a placebo or a tranquilizer. This study provided clear evidence that

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The study by Schachter and Wheeler showed that physiological arousal (from the stimulant) could influence how participants cognitively appraised an external stimulus (the movie), making it seem funnier than it might have been perceived under different physiological conditions. This supports the idea that arousal can affect cognitive appraisals.

Schachter and Wheeler's Study Demonstrated That People Who Unknowingly Received