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Adolescent reward processing risk behavior

Author: YanZhiLing
Tutor: LiHong
School: Southwestern University
Course: Developmental and Educational Psychology
Keywords: Adolescent Reward processing Risk seeking EPQ
CLC: B841
Type: Master's thesis
Year: 2011
Downloads: 54
Quote: 0
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Abstract


Human reward processing mechanism has become a hot research topic in recent years, youth research reward processing in favor adolescent behavior disorders, namely the interpretation of risk-seeking behavior. Brain imaging studies have found that adolescent risk-seeking behavior was mainly due reward stimuli acting on the limbic system development and in charge of the control of prefrontal cognitive development of the region there is an imbalance in the relationship, focusing on the results of reward processing stage, meanwhile, recently The researchers also asked adolescence risk-seeking behavior may be specific to the individual's personality traits associated with, rather than the performance of the \Therefore, this research study focused on young people in different stages of reward processing in adult subjects with differential expression of neural activity and adolescent risk-seeking behavior and its relationship between personality traits. Experiment a reward processing using experimental paradigms to examine adolescent gambling reward processing in different stages of adult subjects with differential expression of neural activity. The results show that the expected phase condition main effect on AN1 performed significantly better, medium probability of reward conditions, the average amplitude was significantly greater than the high probability and low probability of reward conditions, while the low probability of reward and high probability of reward under the volatility of the difference was not significant, thus As can be seen, were tested for clues to the degree of concern and response signal preparatory activities. Experience in the result phase: FRN showed significant main effect of condition, without showing groups with significant differences between the conditions. P300 group showed a significant interaction with the conditions in the medium can be expected with the expected level, the youth group of the P300 wave amplitude was significantly greater than the differences between adult group. Second experiment using cake gambling task experimental paradigm to study adolescent reward processing in cognitive control reaction, combined with Eysenck Personality Questionnaire study whether adolescent personality traits and risk-seeking behavior was correlated to find elements of their personality. The results showed that adolescents and adults on the high-risk selection under different conditions there is no significant difference, at the same time, EPQ scale of neuroticism and psychoticism dimension has another dimension variables can not explain the role of risk selection is an important predictor of the proportion of and the proportion of risk selection and scale scores between variables between groups there was no significant difference.

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