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191.
192.
Electroencephalographic correlations of temporally spaced responding and avoidance behavior 下载免费PDF全文
Gilbert S. Ross William Hodos Joseph V. Brady 《Journal of the experimental analysis of behavior》1962,5(4):467-472
This study was undertaken to determine whether any EEG changes occurred during a multiple schedule of reinforcement consisting of repeated periods of avoidance behavior, a time-out (TO) period, and a period of differential reinforcement of low rates (DRL). The two monkeys were permanently implanted with bipolar electrodes in various subcortical areas. The EEG was recorded from these electrodes for several weeks before any behavioral training was undertaken. Training was then begun in the multiple schedule, and EEG recordings were taken frequently throughout the training period. When a stable performance level was achieved, drugs (dl-amphetamine and sodium pentobarbital) were introduced which disrupted the DRL performance but had little or no effect on avoidance behavior. The EEG recordings continued throughout these drug studies.
The data indicate that the marked behavioral differences noted in each component of the schedule were not reflected in the EEG. However, the EEG did correlate with the general level of alertness of the animals during the various components. The drugs which differentially affected the behavior in the components of the schedule did not differentially affect the EEG, but they did change the brain-wave activity equally in all components. Finally, EEG changes correlated with the complex motor response of lever pressing were not observed.
相似文献193.
Ron Acierno Kristine Brady Matt Gray Dean G. Kilpatrick Heidi Resnick Connie L. Best 《Journal of Clinical Geropsychology》2002,8(1):13-23
A randomly selected sample of 549 women age 55 years and older and 2,669 women age 18–34 years was interviewed via telephone to determine prevalences of physical and sexual assault, posttraumatic stress disorder (PTSD) symptomatology, and depression. Prevalences of sexual and physical assaults were lower in older compared to younger women. In addition, given a trauma, prevalences and proportionate risk of posttraumatic psychopathology and depression were also lower for older, relative to younger women. Specifically, multivariate analyses revealed that sexual assault predicted only PTSD avoidance in older adults, but all forms of PTSD symptomatology and depression in younger adult women. Similarly, physical assault predicted only PTSD re-experiencing symptoms in older women, but all forms of PTSD symptoms and depression in younger women. Self-reported health status was not associated with any increased risk of psychopathology, and low income predicted increased avoidance and depression only in younger women. 相似文献
194.
Michael Sean Brady 《Philosophical Studies》2005,125(1):85-113
Direct theories of the virtues maintain that an explanation of why some virtuous trait counts as valuable should ultimately appeal to the value of its characteristic motive or aim. In this paper I argue that, if we take the idea of a direct approach to virtue theory seriously, we should favour a view according to which virtue involves knowledge. I raise problems for recent “agent-based” and “end-based” versions of the direct approach, show how my account proves preferable to these, and defend it against a number of objections. 相似文献
195.
Brady Thomas Heiner 《Continental Philosophy Review》2008,41(2):115-126
196.
Closeness is an integral aspect of friendships, and males and females differ in their closeness experiences within these relationships. However, identity development and friendship type (e.g., same-sex versus cross-sex friendships) may moderate these gender differences. In an attempt to clarify the relationships among gender, identity, and friendship closeness, the current study examined gender and identity associations with reported emotional closeness in emerging adults' same- and cross-sex friendships. Responses from 181 college undergraduates (89 males and 92 females) indicated similar levels of emotional closeness reported for same- and cross-sex friendships. Results also indicated overall identity commitment and friendship identity commitment associations with same-sex friendship closeness. Examination of closeness reports for cross-sex friends revealed a significant association with overall identity commitment for emerging adult males. A significant association was not indicated for emerging adult females. The associations between identity and emotional closeness in same-sex friendships and male cross-sex friendships support previous studies that report differences in the role of these relationships for emerging adult males and females. Findings are discussed in terms of understanding the gender and identity differences in emerging adults' reports of friendship closeness. 相似文献
197.
Cognitive-behavioral therapy incorporating exposure and response prevention (ERP) is widely considered a first-line psychosocial treatment for patients with obsessive-compulsive disorder (OCD). However, a number of obstacles prevent many patients from receiving this treatment, and self-administered ERP may be a useful alternative or adjunct. Forty-one adult outpatients with a primary diagnosis of OCD, who reported at least 1 current or previous adequate medication trial, were randomly assigned to self-administered or therapist-administered ERP. Patients in both treatment conditions showed statistically and clinically significant symptom reduction. However, patients receiving therapist-administered ERP showed a superior response in terms of OCD symptoms and self-reported functional impairment. We discuss several potential reasons for the superiority of therapist-administered treatment, and propose a stepped-care integration of self-administered and therapist-administered interventions for OCD. 相似文献
198.
Brady SS 《Aggressive behavior》2007,33(6):519-525
Links between media violence exposure and favorable attitudes toward interpersonal violence are well established, but few studies have examined whether associations extend to include favorable attitudes toward institutional forms of aggression. Studies on this topic have not assessed multiple forms of media use and statistically controlled for individual characteristics likely to influence attitudes beyond sociodemographic information. In this study, undergraduate students (N=319) aged 18-20 years (56% male) completed a survey assessing media use (number of hours per week spent playing videogames, watching movies/TV shows, watching TV sports) and attitudes toward interpersonal violence, punitive criminal justice policies, and different types of military activities (preparedness/defense and aggressive intervention). Greater number of hours spent watching TV contact sports was associated with more favorable attitudes toward military preparedness/defense, aggressive military intervention, and punitive criminal justice policies among men independently of parental education, lifetime violence exposure within the home and community, aggressive personality, and constrained problem solving style. Greater number of hours spent watching violent movies/TV was associated with more favorable attitudes toward military preparedness/defense among men and with more favorable attitudes toward interpersonal violence and punitive criminal justice policies among women, but these associations became non-significant when adjusting for covariates. 相似文献
199.
Brady TF Chun MM 《Journal of experimental psychology. Human perception and performance》2007,33(4):798-815
Predictive visual context facilitates visual search, a benefit termed contextual cuing (M. M. Chun & Y. Jiang, 1998). In the original task, search arrays were repeated across blocks such that the spatial configuration (context) of all of the distractors in a display predicted an embedded target location. The authors modeled existing results using a connectionist architecture and then designed new behavioral experiments to test the model's assumptions. The modeling and behavioral results indicate that learning may be restricted to the local context even when the entire configuration is predictive of target location. Local learning constrains how much guidance is produced by contextual cuing. The modeling and new data also demonstrate that local learning requires that the local context maintain its location in the overall global context. 相似文献
200.