Schachter and singer conducted two experiments in which two groups of participants were injected with epinephrine. one group was told of the arousal effects of the drug before the experiment began and the other group of participants was not told of the arousal effects of the drug. later, participants observed a confederate displaying euphoric behavior in the first experiment and angry behavior in the second experiment. the results of both experiments supported schachter and singer’s theory of emotion in which

Emotions are the interpretation of the interaction physiological arousal and the cognitive label, we apply to explain the arousal.  

Explanation:

The two-factor theory was proposed by Schachter and Singer. In this theory, there are two key factors physical arousal and cognitive label. In this theory when a person feels the experience of emotions, it includes the physiological arose with the cognitive level of emotions.

In this theory, the physical arousal plays first role. The theorist suggests that physical arousal was the same for several of the emotions. Thus physical arousal was alone responsible for emotion.

For instance, when I saw a strange person at night coming towards me my heart will be pounding fastly and I started trembling along with. Both the physical arousal and heart-pounding occur together due to my emotions fear and I get frightened.

answer; the president uses mass media to gain support for policies;

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