Older adults often demonstrate higher levels of false recognition than do younger adults. However, in experiments using novel shapes without preexisting semantic representations, this age-related elevation in false recognition was found to be greatly attenuated. Two experiments tested a semantic categorization account of these findings, examining whether older adults show especially heightened false recognition if the stimuli have preexisting semantic representations, such that semantic category information attenuates or truncates the encoding or retrieval of item-specific perceptual information. In Experiment 1, ambiguous shapes were presented with or without disambiguating semantic labels. Older adults showed higher false recognition when labels were present but not when labels were never presented. In Experiment 2, older adults showed higher false recognition for concrete but not abstract objects. The semantic categorization account was supported. 相似文献
The authors conducted an empirical study in research and development centers and research-oriented commercial companies in Singapore to test a model for understanding individuals' technical information inquiry behavior in organization settings. Individual-level antecedents (learning orientation, risk-taking propensity, and self-efficacy) and perceived contextual-level antecedents (management support, relationship quality, organizational norms favoring technical information inquiry, and accessibility of the information source) were theorized to affect one's evaluation of the potential benefits and costs in making technical information inquiries. The results showed that the perceived norms favoring technical information inquiry affected the willingness of individuals to make technical information inquiries through the mediating variable, expectancy value. In addition, compared with individual-level variables, perceived contextual-level variables explained slightly more variance in the willingness to make technical information inquiries. Theoretical and practical implications are discussed. 相似文献
The present study examined the effects of lesions to the dorsal striatum (DS) in Sprague-Dawley rats, when tested on the acquisition and successive shifts in the position of a goal arm in an eight-arm radial maze. In the procedure we used, rats had to retrieve the location of one baited arm among the eight arms of the maze after it had just been presented as a sample during a forced trial. After attainment of a fixed learning criterion, rats were submitted to five successive shifts in the goal location. Results showed that DS rats were able to learn the position of the goal arm during the acquisition phase as efficiently as sham-operated rats. In contrast, when the position of the goal arm was shifted, although DS rats were able to learn its new position, they made significantly more errors and required more sessions to reach criterion than sham-operated rats. These results suggested that both groups did not solve the task using the same behavioral strategy. The analysis of responses made suggested that sham-operated rats solved the task using the pairing rule between the forced and the free run (matching-to-sample rule), while DS rats solved the task using only visuo-spatial processing. These data therefore suggest that the dorsal striatum plays an important role in rule-learning ability. 相似文献
Alcohol use disorders (AUDs)—a spectrum including at-risk drinking, alcohol abuse, dependence, and addiction—is a highly prevalent problem worldwide with a substantial economic impact. The toll of alcohol on individual health and healthcare systems is devastating. Alcohol is estimated to be the fifth leading risk factor for global disability-adjusted life years. Tackling the problem of AUD requires a comprehensive strategy that includes solid action on price, availability, and marketing of alcohol. Restricting or banning alcohol advertising may reduce exposure to the risk posed by alcohol at the individual and general population level. Warning labels about the cancer risks associated with drinking have a high degree of public support and may be an inexpensive and acceptable way to educate the public. Religiosity may reduce risk behaviors and contribute to health decision making related to alcohol use.
Psychological Studies - Knowledge of child-rearing and child development is of the utmost importance to optimal parenting and child well-being. Most of what is known about parenting knowledge is... 相似文献
The current study investigated the role of lifestyle as a significant factor related to the aggression and violence between cohabitating partners. Based on previous research, lifestyle was defined as a special reflection of socialization into society and working life, where different lifestyles should also be able to produce different patterns of socialization into people's roles as partners. It was found that gender and years of cohabitating were significantly related to Emotional aggression and Sexual violence; lifestyle patterns were associated with specific forms of violence. More specifically, the lifestyles of Pleasure & Elegance and the one of Culture-Intellectualism were found to promote Emotional aggression. Also, the lifestyle of Yuppies/Workaholic and that of Physical activities stimulated the appearance of Sexual violence between partners. Moreover, individuals with Tradition-Religiousness lifestyle were more likely to show lower levels of Physical & Sexual violence while the adherents of the Substance abuse lifestyle pattern appeared to have an inclination towards Physical & Sexual Violence. Finally, the occurrence of one form of violent behaviour was likely to be related to the other forms of violent behaviour. 相似文献