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161.
Poldrack RA 《Trends in cognitive sciences》2006,10(2):59-63
There is much interest currently in using functional neuroimaging techniques to understand better the nature of cognition. One particular practice that has become common is 'reverse inference', by which the engagement of a particular cognitive process is inferred from the activation of a particular brain region. Such inferences are not deductively valid, but can still provide some information. Using a Bayesian analysis of the BrainMap neuroimaging database, I characterize the amount of additional evidence in favor of the engagement of a cognitive process that can be offered by a reverse inference. Its usefulness is particularly limited by the selectivity of activation in the region of interest. I argue that cognitive neuroscientists should be circumspect in the use of reverse inference, particularly when selectivity of the region in question cannot be established or is known to be weak. 相似文献
162.
Hopkins WD Russell JL Freeman H Reynolds EA Griffis C Leavens DA 《Emotion (Washington, D.C.)》2006,6(4):553-559
This study evaluated laterality in scratching by chimpanzees (n = 89) during socially arousing circumstances. Hand use and the side of the body scratched was recorded during a baseline and experimental condition. In the experimental condition, chimpanzees were shown a video of other conspecifics sharing, fighting over, and consuming a watermelon. Self-touches were categorized as either rubs or scratches. The chimpanzees showed a significant right hand bias for rubbing and also significantly directed the rubs to the right side of the body. For scratching, the chimpanzees showed no hand preference but a significant bias for scratching on the left side of the body. These results support the view that the right hemisphere regulates the autonomic nervous system during arousal. 相似文献
163.
Three studies assessed the relationship between language and the perception of emotion. The authors predicted and found that the accessibility of emotion words influenced participants' speed or accuracy in perceiving facial behaviors depicting emotion. Specifically, emotion words were either primed or temporarily made less accessible using a semantic satiation procedure. In Studies 1 and 2, participants were slower to categorize facial behaviors depicting emotion (i.e., a face depicting anger) after an emotion word (e.g., "anger") was satiated. In Study 3, participants were less accurate to categorize facial behaviors depicting emotion after an emotion word was satiated. The implications of these findings for a linguistically relative view of emotion perception are discussed. 相似文献
164.
Reducing automatically activated racial prejudice through implicit evaluative conditioning 总被引:2,自引:0,他引:2
The authors report a set of experiments that use an implicit evaluative conditioning procedure to reduce automatically activated racial prejudice in White participants in a short period and with relatively few trials. Experiment 1 demonstrated that participants were unaware of the repeated conditioned stimulus-unconditioned stimulus (CS-US) pairings of Black-good and White-bad. In Experiment 2, the procedure was found to be effective in reducing prejudice as indicated by an evaluative priming measure of automatically activated racial attitudes. In Experiment 3, this reduction in prejudice was found to persist throughout a 2-day separation between the conditioning procedure and the administration of the dependent measure. The implications of the present findings for the persistence of automatically activated racial prejudice are discussed. 相似文献
165.
Claassen CA Trivedi MH Shimizu I Stewart S Larkin GL Litovitz T 《Suicide & life-threatening behavior》2006,36(2):192-212
The absence of validated U.S. rates of nonfatal suicidal behavior places risk management and injury prevention programs at danger of being poorly informed and inadequately conceptualized. In this study we compare estimated rates of intentional self-harm from two ongoing surveys (National Electronic Injury Surveillance System-All Injury Program-NEISS-AIP; National Hospital Ambulatory Medical Care Survey-NHAMCS) to data from the Toxic Exposure Surveillance System. Results suggest that, for every 2002-2003 suicide, there were 12 (NEISSAIP) or 15 (NHAMCS) self-harm-related emergency department visits, and for every intentional self-poisoning death there were 33 intentional overdoses reported to poison control centers, of which two ultimately went untreated. 相似文献
166.
Functional impulsivity and reinforcement sensitivity theory 总被引:1,自引:0,他引:1
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