## 4 Experimental Setup and Results
### Experimental Setup  
The primary objective of this experiment is to investigate the influence of emotions on participants' willingness to adopt auxiliary decision-making support and their risk-taking behavior in a human-machine interactive intelligent system. A total of 40 participants were recruited, including 22 males and 18 females, aged between 18 and 60 years. All participants were physically and mentally healthy and had not participated in similar experiments before. Participants were randomly divided into three groups of 13, 13, and 14 individuals, ensuring an equal distribution of genders across groups. These groups were designated as the positive emotion group, negative emotion group, and control group. Research indicates that the method chosen for emotion induction significantly impacts its effectiveness. Emotion induction is a well-established technique in psychology, with visual and auditory stimuli, such as films and music, being commonly used to evoke specific emotional states. The effectiveness of these stimuli has been supported by multiple studies, including [PERSON] and [PERSON] [40], who reviewed various methods for inducing basic emotions. Furthermore, [PERSON] et al. [41] showed that combining music with film scenes induces mood-coherent emotional biases, strengthening the validity of using these methods in experimental settings. Movies are considered one of the most effective methods for inducing strong emotional experiences. Therefore, this study employed movie clips to induce positive or negative emotions. Specifically, a 5-min clip from _Mr. Bean_ and a 5-min clip from _Zootopia_ were used to induce positive emotions, while a 5-min clip from _Hachi: A Dog's Tale_ and a 5-min clip from _Titanic_ was used to induce negative emotions. Meanwhile, research has shown that the Positive and Negative Affects Scale (PANAS) [42] has high internal consistency reliability ([PERSON]'s alpha = 0.87) and structural validity, making it suitable for measuring emotions. Therefore, this study utilized the Chinese version of PANAS, which consists of ten positive and ten negative emotion descriptors. Participants rated these descriptors on a scale from 1 (very little or not at all) to 5 (extremely), with higher scores indicating stronger positive or negative emotions. The specific experimental procedure was as follows:  
Positive emotion group: subjects were informed that they would be paid for the experiment. Prior to the start of the experiment, a warm welcome was given to the subjects, followed by an introduction of the rules of the Khun poker game, the presentation of a small gift (snack) to the subjects, and the playing of a funny classic scene from _Mr Bean_ to induce a positive emotion and the completion of an emotion measurement scale. Subjects were asked to watch a funny scene from _Zootopia_ again, and then they were asked to operate the [PERSON] poker platform in a positive emotion-inducing environment. Subjects were asked to complete 20 rounds of poker, and for each round they were able to see the winning and losing results at that time. After completing the 20 rounds, the subjects were asked to fill out an emotion measurement scale. Negative emotion group: Subjects were not informed of the experimental payoff. The rules of [PERSON]'s poker game were introduced directly to the subjects without a welcome speech before the start of the experiment. Subjects were shown a scene from _Hachi: A Dog's Tale_ in which a dog waits for its master but never gets there, and filled out an emotion measurement scale. Subjects were asked to watch the scene of the hero sinking to the bottom of the sea and saying goodbye to the heroine in _Titanic_ again, and then were asked to operate the [PERSON] poker game experimental platform under the negative emotion-inducing environment. Subjects were asked to complete 20 rounds of poker, and for each round they were able to see the winning or losing results at that time. After completing the 20 rounds, the subjects were asked to complete an emotion measurement scale.