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151.
Optimization and the matching law as accounts of instrumental behavior   总被引:18,自引:17,他引:1       下载免费PDF全文
The interaction between instrumental behavior and environment can be conveniently described at a molar level as a feedback system. Two different possible theories, the matching law and optimization, differ primarily in the reference criterion they suggest for the system. Both offer accounts of most of the known phenomena of performance on concurrent and single variable-interval and variable-ratio schedules. The matching law appears stronger in describing concurrent performances, whereas optimization appears stronger in describing performance on single schedules.  相似文献   
152.
During the early stages of the COVID-19 pandemic, governments issued public health safety measures (e.g., “stay-at-home” ordinances), leaving many people “missing out” on integral social aspects of their own lives. The fear of missing out, popularly shortened as, “FoMO,” is a felt sense of unease one experiences when they perceive they may be missing out on rewarding and/or enjoyable experiences. Among 76 participants (ages M = 69.36, SD = 5.34), who were at risk for hospitalization or death if infected with COVID-19, we found that FoMO was associated with depressive symptoms at Time 1, even when controlling for perceived stress, loneliness, and fear of COVID-19. However, FoMO did not predict future depressive symptoms, about 1 week later, when controlling for Time 1 depressive symptoms. These findings provide further evidence that FoMO is associated with depressive symptoms in a short period of time even when accounting for other powerful social factors such as loneliness. Future research should explore the potential causal relationships between FoMO and depression, especially those that may establish temporal precedence.  相似文献   
153.
Academic theories of aggression can be dichotomized as expressive (in which aggression results from a failure of self control) or instrumental (in which aggression represents the exercise of control over others). We propose that the two sexes hold a parallel distinction in their social representations of aggression; women subscribe to an expressive model, men to an instrumental model. A 20-item questionnaire was generated by systematic comparison of the two theories with respect to their differential predictions concerning perceived social value, proximate causes, relevant emotions and congnitions, form, aim, social facilitators, and reputational aspects of aggression. Factor analysis indicated a first factor of expressive-instrumental aggression on which all items had significant loadings. A significant correlation (.46) was found between gender and questionnaire score confirming the hypothesis. The notion of gender-specific social representations is discussed in terms of its ability to coherently interpret patterns of differences in aggression found in experimental and observational studies.  相似文献   
154.
Female rate living in groups were subjeccted to single and repeated immobllization stress (Restraint, RT). Twenty-four hours after RT, or the last RT session in the case of repeated RT, social behavior was recored in encounters with unfamilar females, matched for age and body weight. Single RT caused an increase in agonistic behavior in both its aggression and defence aspects. This was a specific effect, as other behaviors, including introductory, affiliative (Allo-Grooming), and courting items, were unifluenced by Rate The effect persisted and was even strengthened in the case of aggression, when RT was repeated once a day for 7 consecutive days. These findings, together with previous data showing a reduction in emotionality and an increase in the exploration of the physical environment following RT, suggest that in females mild stress may induce behavioral arousal, with the selective activation of specific social and non-social behavioral parameters. This contrasts with previous findings in male rats, which responded to RT with the depression of several behavioral parameters, including some of the items (aggresion, exploration) activated in females. As already found in males, in females some parameters were affected by repetition of treatment, either RT or control handing. This suggests that manipulation per se does affect social behavior. However, behavioral modifications ascribable to repeated manipulation in no way superimposed, and were clearly distinguish able from, those due to RT. © 1993 Wiley-Liss, Inc.  相似文献   
155.
To examine the factors associated with social participation and to determine whether social participation is predictive of mortality, a cohort of 1405 randomly selected older people aged 65 years and over, living in Settsu, Osaka Prefecture, was followed up for 66 months. By multivariate analysis using logistic regression, female sex, older age, disability, medical treatment, no use of health checks, no daily preventive health practices, and no life worth living (no Ikigai) were independent risk factors for no participation in social activities. From the analysis using the Kaplan–Meier method, the cumulative survival rates were higher among those who took part in social activities than among those who did not in both age groups, 65–74 years and 75 years and older, for men and women. Application of the Cox proportional hazards model resulted in adjusted hazard ratio of no participation in social activities for mortality of 1.53 (95% confidence interval: 1.11–2.11), controlling for other potential factors. These results suggest that participation in social activities is closely associated with health and psychosocial conditions and may be an independent risk factor for mortality among community-residing older people.  相似文献   
156.
This prospective study of 27 older adults, residing in long-term care facilities, examined the effects of reducing neuroleptic medications to the point of controlling symptoms and reducing side effects. Schizophrenia is a challenging health care condition that leads to delusions, hallucinations, disorganized speech, and a host of other symptoms. Unfortunately, medications control many of the symptoms but cause unwanted side effects unless monitored closely and regulated to each person's needs. This study addresses six research questions related to the reduction of neuroleptic medications. Study findings related to neuroleptic medication dose reduction were encouraging. Additionally, the findings strongly suggest that health care providers working with older adults with the diagnosis of schizophrenia would benefit from planned educational programs about behavior, observations, and medications.  相似文献   
157.
Bronfenbrenner's (1977) ecological systems theory is a holistic framework placing an individual in a system's context to address their concerns. This article offers a case study demonstrating use of the theory with older adults and the in‐home setting. Implications for the counseling field and future research needs are discussed.  相似文献   
158.
The authors surveyed 6,550 members of the American Counseling Association regarding the current impact of Medicare policy on counseling professionals. More than half of respondents (54.8%) had been directly affected by Medicare reimbursement barriers, including 70.0% of practicing counselors. Statistical analyses indicated significant associations between years in the profession, direct experience with the Medicare coverage gap, and participation in professional advocacy related to Medicare. Implications for counselors, counselor educators, and counseling scholarship are discussed.  相似文献   
159.
160.
The central theme of this paper is that men are at one and the same time both damaged and damage-doing. The process of being damaged through the agency of masculinity predisposes men to exploit, dominate and abuse—not only as boys, as partners and fathers, but as priests, teachers, therapists, lawyers, nurses, psychologists and psychiatrists. Mental health services need to see both aspects of this male equation: a focus on male abuse alone leads to punishment, containment and, very likely, the continuation of abuse; a focus on male damagedness alone preserves the ideology of male unaccountability. However, evidence reviewed here suggests that most traditional psychiatric services fail to acknowledge the impact of inequalities on men's mental health as comprehensively as they fail to acknowledge the impact of these inequalities on the mental health of women. This is a significant problem, and we suggest ways that a gendered analysis of masculinity can be used to help address this deficit. This analysis is used to develop a map of men's mental health that not only accommodates traditional categories of mental health difficulty, but other important consequences of the close association between masculinity and sexuality inequality, especially the use of violence and the capacity to do harm. This analytical framework also invites consideration of the invisibility of male distress, the disallowing and desensitizing of ‘vulnerability, and their submersion in a kind of psychology of entitlement. Finally, we consider the implications of this mapping exercise for mental health services and for working with men.  相似文献   
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