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Monetary Reward (monetary + reward)
Selected AbstractsDopamine release in ventral striatum of pathological gamblers losing moneyACTA PSYCHIATRICA SCANDINAVICA, Issue 4 2010J. Linnet Linnet J, Peterson E, Doudet DJ, Gjedde A, Møller A. Dopamine release in ventral striatum of pathological gamblers losing money. Objective:, To investigate dopaminergic neurotransmission in relation to monetary reward and punishment in pathological gambling. Pathological gamblers (PG) often continue gambling despite losses, known as ,chasing one's losses'. We therefore hypothesized that losing money would be associated with increased dopamine release in the ventral striatum of PG compared with healthy controls (HC). Method:, We used Positron Emission Tomography (PET) with [11C]raclopride to measure dopamine release in the ventral striatum of 16 PG and 15 HC playing the Iowa Gambling Task (IGT). Results:, PG who lost money had significantly increased dopamine release in the left ventral striatum compared with HC. PG and HC who won money did not differ in dopamine release. Conclusion:, Our findings suggest a dopaminergic basis of monetary losses in pathological gambling, which might explain loss-chasing behavior. The findings may have implications for the understanding of dopamine dysfunctions and impaired decision-making in pathological gambling and substance-related addictions. [source] Risk-taking and the adolescent brain: who is at risk?DEVELOPMENTAL SCIENCE, Issue 2 2007Adriana Galvan Relative to other ages, adolescence is described as a period of increased impulsive and risk-taking behavior that can lead to fatal outcomes (suicide, substance abuse, HIV, accidents, etc.). This study was designed to examine neural correlates of risk-taking behavior in adolescents, relative to children and adults, in order to predict who may be at greatest risk. Activity in reward-related neural circuitry in anticipation of a large monetary reward was measured with functional magnetic resonance imaging, and anonymous self-report ratings of risky behavior, anticipation of risk and impulsivity were acquired in individuals between the ages of 7 and 29 years. There was a positive association between accumbens activity and the likelihood of engaging in risky behavior across development. This activity also varied as a function of individuals' ratings of anticipated positive or negative consequences of such behavior. Impulsivity ratings were not associated with accumbens activity, but rather with age. These findings suggest that during adolescence, some individuals may be especially prone to engage in risky behaviors due to developmental changes in concert with variability in a given individual's predisposition to engage in risky behavior, rather than to simple changes in impulsivity. [source] Neural activity related to the processing of increasing monetary reward in smokers and nonsmokersEUROPEAN JOURNAL OF NEUROSCIENCE, Issue 3 2003C. Martin-Soelch Abstract This study investigated the processing of increasing monetary reward in nonsmoking and smoking subjects. The choice of the subject populations has been motivated by the observation of differences between nonsmokers and smokers in response to rewarding stimuli in a previous study. Subjects performed a pattern recognition task with delayed response, while rCBF was measured with [\mathrm{H}^{15}_{2}O] PET. Correct responses to the task were reinforced with three different amounts of monetary reward. The subjects received the sum of the rewards at the end of the experiment. The results show that a cortico-subcortical loop, including the dorsolateral prefrontal cortex, the orbitofrontal cortex, the cingulate gyrus and the thalamus is involved in processing increasing monetary reward. Furthermore, the striatal response differentiates nonsmokers from smokers. Thus, we found significant correlations between rCBF increases in striatum and increasing monetary reward and between striatal rCBF increases and mood in nonsmokers, but not in smokers. Moreover, no significant mood changes among the different monetary rewards could be observed in smokers. We infer that the response of the striatum to reward is related to changes in subjective feelings. The differences between smokers and nonsmokers confirm our previous conclusions that the association between blood flow, performance, mood and amount of reward is more direct in nonsmokers. [source] Sustainable development of a suggestion system: Factors influencing improvement activities in a confectionary companyHUMAN FACTORS AND ERGONOMICS IN MANUFACTURING & SERVICE INDUSTRIES, Issue 1 2007Cecilia Rapp Although the use of continuous improvement (CI) is widespread today, many organizations face problems maintaining high and sustained employee involvement in such programs. The purpose of this study was to identify factors influencing employee involvement in submitting suggestions within a suggestion system in a Swedish production company. The company had maintained a successful suggestion system for about 10 years. The study builds on a database containing all the suggestions submitted (2343 in number) within the suggestion system. The following factors were identified to influence employee involvement in submitting suggestions and hence the sustainability of the suggestion system as well: (a) Situations when the employees had a personal benefit from submitting suggestions, e.g., concerning their own work environment, contributed to long-term sustainability of the system; (b) campaigns emphasizing different themes encouraged employees to become more active within the suggestion system; (c) employees having some of their suggestions rejected were more active in submitting suggestions than employees having most suggestions rejected or accepted; (d) a high monetary reward (80 euros and above) was not found favorable for submitting new suggestions, compared to lower rewards; (e) increased support of group suggestions contributed to a sustained and high level of activity of the suggestion system. © 2007 Wiley Periodicals, Inc. Hum Factors Man 17: 79,94, 2007. [source] Effects of monetary reward and punishment on stimulus-preceding negativityPSYCHOPHYSIOLOGY, Issue 3 2006Yoshimi Ohgami Abstract This study examined the effects of emotional valence on stimulus-preceding negativity (SPN) using reward and fine. A time estimation task under reward, punishment, combined, and control conditions was performed. Participants were rewarded for accurate responses in the reward condition, and were fined for incorrect estimations in the punishment condition. in the combined condition, correct responses were rewarded and incorrect responses were fined. In the control condition, neither a reward nor fine was used. Results showed a significant interaction of condition × hemisphere. The SPN at the left hemisphere was increased in the reward condition. For the punishment effect, although it evoked right hemisphere dominance, no conditional difference was apparent at the right hemisphere. These results suggest that the SPN is affected by positive emotion: The left hemisphere activation might represent a pleasant emotion accompanying monetary gain. [source] Effect of positive and negative emotion on stimulus-preceding negativity prior to feedback stimuliPSYCHOPHYSIOLOGY, Issue 6 2001Yasunori Kotani Stimulus-preceding negativity (SPN) was recorded to investigate the effect of positive and negative emotion on the SPN preceding feedback stimuli. In the time-estimation task in which an acoustic stimulus was presented 3 s after a voluntary movement, (1) the negative valence (aversive band noise and pure tone) and (2) the positive valence (reward and no-reward) of feedback stimuli were manipulated. During noise conditions, participants received the band noise as a feedback stimulus except when their time estimations were accurate. They received a monetary reward for accurate time estimations under the reward conditions. The prefeedback SPN was larger under reward than no-reward conditions. In addition, the prefeedback SPN in the noise condition was larger compared with the pure tone condition. Our results appear to suggest that emotional anticipation is important in eliciting the prefeedback SPN. [source] Neural activity related to the processing of increasing monetary reward in smokers and nonsmokersEUROPEAN JOURNAL OF NEUROSCIENCE, Issue 3 2003C. Martin-Soelch Abstract This study investigated the processing of increasing monetary reward in nonsmoking and smoking subjects. The choice of the subject populations has been motivated by the observation of differences between nonsmokers and smokers in response to rewarding stimuli in a previous study. Subjects performed a pattern recognition task with delayed response, while rCBF was measured with [\mathrm{H}^{15}_{2}O] PET. Correct responses to the task were reinforced with three different amounts of monetary reward. The subjects received the sum of the rewards at the end of the experiment. The results show that a cortico-subcortical loop, including the dorsolateral prefrontal cortex, the orbitofrontal cortex, the cingulate gyrus and the thalamus is involved in processing increasing monetary reward. Furthermore, the striatal response differentiates nonsmokers from smokers. Thus, we found significant correlations between rCBF increases in striatum and increasing monetary reward and between striatal rCBF increases and mood in nonsmokers, but not in smokers. Moreover, no significant mood changes among the different monetary rewards could be observed in smokers. We infer that the response of the striatum to reward is related to changes in subjective feelings. The differences between smokers and nonsmokers confirm our previous conclusions that the association between blood flow, performance, mood and amount of reward is more direct in nonsmokers. [source] Incentives for International Migration of Scientists and Engineers to JapanINTERNATIONAL MIGRATION, Issue 4 2009Yukiko Murakami Many developed countries, welcome foreign talent, and Japan is no exception. The Japanese government has developed programmes for expanding the acceptance of foreign labour in specialized and technical fields, in order to compete with foreign nations in the global economy and accommodate the highly specialized domestic industrial structure. This paper focuses on scientists and engineers (S&E) as a component of the highly skilled labour force, and examines their incentives for migrating to Japan, which is one of the most technologically advanced countries in the world. According to a survey conducted in 2004, the majority of S&E working in Japan migrated from Asian nations, and many obtained their doctoral degrees in Japan and continued to stay in the country to work. Key incentives for migration are Japan's high level of science and technology, opportunities to acquire cutting-edge knowledge, and prospects for improving performance in an environment with large budgets, superior equipment and facilities, and good quality human resources. In particular, the technological environment is influential for S&E from countries with a significant technological gap when compared with Japan. However, this does not mean that S&E are indifferent to monetary rewards. The salary gap, which is considered to be a major factor in international mobility in to traditional economic theory, has also proven to be a significant incentive, particularly for S&E from countries where the gap in gross domestic product (GDP) per capita compared with Japan is large. In addition, cultural and social aspects of Japan attract mainly young S&E. The attractiveness of Japanese culture, opportunities to learn the Japanese language, and chances to build a network of personal contacts are important incentives for migration. This study presents some policy implications for countries competing over capable S&E. [source] Improving judgement with prepaid expert adviceJOURNAL OF BEHAVIORAL DECISION MAKING, Issue 3 2004Janet A. Sniezek Abstract Decision makers ("Judges") often make decisions after obtaining advice from an Advisor. The two parties often share a psychological "contract" about what each contributes in expertise to the decision and receives in monetary outcomes from it. In a laboratory experiment, we varied Advisor Experitise and the opportunity for monetary rewards. As expected, these manipulations influenced advice quality, advice taking, and Judge post-advice decision quality. The main contribution of the study, however, was the manipulation of the timing of monetary rewards (before or after the advising interaction). We found, as predicted, that committing money for expert,but not novice,advice increases Judges' use of advice and their subsequent estimation accuracy. Implications for advice giving and taking are discussed. Copyright © 2004 John Wiley & Sons, Ltd. [source] Good for workers, good for companies: How knowledge sharing benefits individual employeesKNOWLEDGE AND PROCESS MANAGEMENT: THE JOURNAL OF CORPORATE TRANSFORMATION, Issue 4 2009Iris Reychav The paper aims to identify the ways in which explicit and tacit knowledge sharing occur in organizations and to investigate the impact of sharing these two knowledge types on the employee's rewards, performance, and intention to leave. This paper focuses on two hi-tech companies working in the telecommunications field producing cellular networks. The final sample consisted of 278 completed questionnaires from business departments including finance, R&D, marketing, IT, engineering, and manufacturing. Explicit knowledge sharing is perceived by the employees as having: (1) a direct positive effect on the receipt of monetary rewards; (2) a positive indirect effect on the employee's performance; and it has a (3) positive direct and negative indirect effects on employee's intention to leave. Tacit knowledge sharing is perceived by employees as having: (1) a positive direct effect on the receipt of non-monetary rewards; (2) a positive direct effect on performance; and (3) it has a positive indirect effect on employee's intention to leave. Although the findings show that increased knowledge sharing results in positive outcomes at the individual level, the research model would benefit from an examination of larger samples for reasons of statistical complexity analysis and in order to allow for generalizability of the results to other companies that operate in similar environments. It would also be worthwhile to conduct a comparative analysis of companies from different industries. Understanding knowledge-sharing behaviors may prove helpful to managers in developing strategies to encourage organizational knowledge sharing and in the development of an organizational knowledge base. The knowledge sharing outcomes outlined here can give employees a way to predict potential positive outcomes and benefits that are likely to arise as a result of engaging in knowledge sharing activities. The model enables for the first time to substantiate, in a valid way, to hypothesize that knowledge sharing within an organization is perceived by employees to be a rewarding behavior, improving employees' performance, and decrease the intention to leave. Copyright © 2009 John Wiley & Sons, Ltd. [source] Reward processing in autismAUTISM RESEARCH, Issue 2 2010Ashley A. Scott-Van Zeeland Abstract The social motivation hypothesis of autism posits that infants with autism do not experience social stimuli as rewarding, thereby leading to a cascade of potentially negative consequences for later development. While possible downstream effects of this hypothesis such as altered face and voice processing have been examined, there has not been a direct investigation of social reward processing in autism. Here we use functional magnetic resonance imaging to examine social and monetary rewarded implicit learning in children with and without autism spectrum disorders (ASD). Sixteen males with ASD and sixteen age- and IQ-matched typically developing (TD) males were scanned while performing two versions of a rewarded implicit learning task. In addition to examining responses to reward, we investigated the neural circuitry supporting rewarded learning and the relationship between these factors and social development. We found diminished neural responses to both social and monetary rewards in ASD, with a pronounced reduction in response to social rewards (SR). Children with ASD also demonstrated a further deficit in frontostriatal response during social, but not monetary, rewarded learning. Moreover, we show a relationship between ventral striatum activity and social reciprocity in TD children. Together, these data support the hypothesis that children with ASD have diminished neural responses to SR, and that this deficit relates to social learning impairments. [source] | ||||||||||||||||