The Research On Deaf Students' Affective Decision-making With Gambling Tasks

Affective Decision-making, which has become a new hotspot in the field of decision-making, is an important capacity of adapting to our society, Researchers have developed many useful experimental paradigms to study affective decision- making. At present, They have paid more attention to the assessment of individual's behavior abroad, such as brain injury patients, abnormal behavior, and attention was mainly focused on the development characteristics of children's affective decision- making at home, while there are still no research refers to the deaf students. Our paper will study the characteristics of deaf students'affective decision-making by Iowa Gambling Task (IGT) and Game of Dice Task (GDT). IGT was more efficient in evaluating individuals'impulsive behavior, and GDT was more efficient in evaluating individuals'risk-taking tendency.In experiment 1, we tend to investigate characteristics of the deaf students'affective decision-making under uncertain situations by IGT,in contrast to the normal students; Experiment 2 mainly aims to investigate characteristics of the deaf students'affective decision-making under risk situations by GDT. The followings are the results and conclusions:(1) Times of individuals'advantageous decks or disadvantageous decks in IGT was indicated, we can find that an interaction between Group and Block was present, indicating that the deaf students and the hearing students exists different decision models in five blocks. Delete the first block, analysis shows that there are significant differences decision models. With the increase number of choosing, the hearing students are evolving and learning will tend to the advantageous decks, while the deaf students will tend to the disadvantageous decks; There are no difference between them in feedback, effects of punishment frequency and IGT conceptual knowledge, indicating that the special decision model of the deaf students is not from the above factors, but cannot effectively restrain the impulsive behavior.(2) The deaf students would show impaired GDT performance, as reflected by significantly lower overall scores, in comparison to the hearing students. This shows that the deaf students chose more numbers from the risk choices, while the hearing students chose more numbers from the safe choices, then the deaf students can not use the explicit rules and feedback to change the risk selection; To further investigate four numbers or combination of four numbers were analyzed: The deaf students tend to choose a single number and four combination of numbers, while little to choose combination of two numbers and combination of three numbers. These indicating that the deaf students tend to more extreme options, either choose the most risky option, or choose the most conservative option; the hearing students were able to adjust choices to the level of risk.