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41.
Odor identification ability and cognition were measured in a population-based cohort of 1,222 very old twins and singletons, including 91 centenarians. Heritability for identifying odors was low, in contrast to that for cognition. Common genes were found to contribute to both olfaction and cognition. In a multiple regression model, sex, age, cognitive function, and smoking, but not APOEε4 status, were significant predictors of the olfactory test scores (all ps < 0.001). This study, along with data from other studies, suggests that indices of heritability for odor identification decline with age, likely reflecting adverse environmental influences on the smell system.  相似文献   
42.
Acceptance and commitment therapy (ACT) has never been tested for patients with chronic fatigue. We aimed to test if a 3.5‐week ACT rehabilitation program for patients with chronic fatigue improved quality of life (QoL), fatigue, and psychological flexibility. Further, to test if improvements in QoL and fatigue were associated with improvement in psychological flexibility, and if psychological flexibility explained variance above and beyond maladaptive cognitions typically targeted in CBT for fatigue. Patients (n = 140) who had been on sick leave > 8 weeks due to chronic fatigue received a 3.5‐week non‐controlled inpatient rehabilitation program based on ACT. A physician and a psychologist examined the patients, assessing medication use and SCID‐I diagnoses. Patients completed questionnaires about somatic complaints, psychological complaints, and maladaptive cognitions before and after treatment. At post‐treatment, patients reported improved QoL (p < 0.001; g = 1.07) and less fatigue (p < 0.001; g = 1.08), but not increased psychological flexibility (p = 0.6). Changes in psychological flexibility was associated with improved QoL, but not fatigue, in hierarchical regression analyses. When adjusting for other cognitions, changes in fear‐avoidance cognitions and all‐or‐nothing thoughts, but not psychological flexibility, were associated with improved QoL and fatigue. The ACT‐based treatment improved QoL and reduced fatigue for patients with chronic fatigue with large effect sizes. Improvement was associated with a reduction in fear‐avoidance cognitions and all‐or‐nothing thoughts, but not psychological flexibility.  相似文献   
43.
In this study, treatment efficacies of 30 short and long-term treatments with adolescents were presented from the perspective of the afflicted adolescent, the parents and the therapists. Assessments were made 3 times over 1.5 years after 97 therapy sessions on average. Short-term psychotherapy did not significantly contribute to symptom reduction. In the long-term treatments, therapists reported a strong reduction in symptomatology and in communicative disturbances with parents, siblings and friends over time. However, parents perceived less change in symptomatology compared to their children. The quality of the therapists' work with parents did not impact psychotherapy outcome. Tendentially, the type of treatment and the experience of the therapist were relevant for treatment efficacy.  相似文献   
44.
The relatively low percentage of women and minority sport journalists suggests dynamics of exclusion. We used J. Acker’s (1990, 1992) theory about gender and organizations to examine several interrelated processes in the construction of gender andethnicity in sport journalism. Acker named 4 processes that inform these constructions:division of labor, images and discourses, interactions, and identity work. We held semistructured interviews with 15 experienced journalists/editors who worked in the sport departments of either national newspapers, commercial television, or public television. The results indicate that, although the journalists asserted that the meanings given totheir ways of doing journalism are ideologically neutral, these 4 processes do construct gender and ethnicity in overlapping and interrelated ways. In the discussion, we place these results in their context and focus on this contradiction between desirable and actual neutrality.  相似文献   
45.
This study investigated the agreement between parent and teacher ratings of DSM-IV symptoms of Attention Deficit Hyperactivity Disorder (ADHD) and related disorders: Oppositional Defiant Disorder (ODD) and Conduct Disorder (CD). A sample of 55 children in the age range of 6–12 years with clinically diagnosed ADHD participated in the study. Parents and teachers were asked to complete the Disruptive Behavior Disorder Rating Scale (DBDRS; W. E., Pelham, E. M., Gnagy, K. E., Greenslade, & R. Milich, 1992). No association was found between parent and teacher ratings of inattention and hyperactivity/impulsivity. However, moderate to high levels of agreement were obtained for ratings of symptoms that characterized ODD and CD. The observed low levels of agreement between parent and teacher ratings of ADHD symptoms may be attributed to different perceptions of the problem behavior by parents and teachers, medication effects, or the situation specificity of children's behavior. It is recommended that the diagnostic criterion of symptom pervasiveness for the diagnosis of ADHD be operationalized more clearly.  相似文献   
46.
The current article tests a longitudinal model of the process of proactive career behaviours and career success with two samples of graduates making the transition from college to work. Using structural equation modelling, we tested a theoretical model that specified the relationships between career progress goals, career planning, networking behaviours, and career success. A longitudinal panel study was conducted within two samples using a 3‐year (sample 1) and 1‐year (sample 2) time lag between the first and second data collection. The results support the process model and suggest that at graduation, career planning is affected by the goal of making career progress. In turn, career planning is positively associated with networking behaviours. Both career planning and networking at graduation are positively related to career planning and networking 1 year later (sample 1) but in sample 2, in which a 3‐year time lag was used, these relationships were no longer significant. Support is found for the relationship between networking during the early career and objective and subjective career success. The findings are discussed in terms of their general implications for understanding the proactive career behaviour process through which graduates affect their career success during the first years of their professional career.  相似文献   
47.
48.
In two experiments, the active haptic identification of three-dimensional mathematically welldefined objects is investigated. The objects, quadric surfaces, are defined in terms of the shape index, a quantity describing the shape, and curvedness, a quantity describing overall curvature. Both shape index and curvedness are found to have a significant influence on haptic shape identification . Concave surfaces lead to a larger spread in responses than convex ones. Hyperbolic surfaces show a slight tendency to be identified with more difficulty than elliptic ones. Surfaces with a high curvedness are identified more easily than those with a low curvedness. Results from experiments with constant and with random curvedness are indistinguishable . It is concluded that shape index and curvedness are psychophysically not confounded.  相似文献   
49.
Psychobiology of altered states of consciousness   总被引:4,自引:0,他引:4  
The article reviews the current knowledge regarding altered states of consciousness (ASC) (a) occurring spontaneously, (b) evoked by physical and physiological stimulation, (c) induced by psychological means, and (d) caused by diseases. The emphasis is laid on psychological and neurobiological approaches. The phenomenological analysis of the multiple ASC resulted in 4 dimensions by which they can be characterized: activation, awareness span, self-awareness, and sensory dynamics. The neurophysiological approach revealed that the different states of consciousness are mainly brought about by a compromised brain structure, transient changes in brain dynamics (disconnectivity), and neurochemical and metabolic processes. Besides these severe alterations, environmental stimuli, mental practices, and techniques of self-control can also temporarily alter brain functioning and conscious experience.  相似文献   
50.
Studies of localized brain dysfunctions have revealed connections between patterns of cognitive dysfunction and specific profiles of memory impairment. The amnesic type of memory impairment is defined by deficits in both free recall and recognition memory, whereas the dysexecutive memory impairment is characterized by retrieval deficits, i.e. a disproportional impairment in free recall relative to recognition memory. The present study tests whether classifications of psychiatric patients into recall impaired only (= RO group) and Recall and Recognition impaired (= RR group) correspond to the executive type and amnesic type of memory impairment. The alternative hypothesis is that the two groups merely differ in degree of neuropsychological and psychiatric disturbance. Forty-four subjects impaired on California Verbal Learning Test (CVLT) were selected from a larger database of 103 impaired and non-impaired subjects with schizophrenia or recurrent major depression. Subjects were classified into RO and RR groups and compared on measures of memory strategy (recency effect and interference on CVLT), overall neuropsychological function (Stroop Test and WAIS-R similarity) and psychiatric symptom load (positive and negative symptoms). Repeated measures ANOVA showed no effects of group, i.e. the RR group did not perform consistently below the RO group with regard to memory strategy, neuropsychological function or psychiatric symptom load. Two out of three analyses showed group x test interaction, supporting the dissociation of distinct executive and amnesic profiles among psychiatric patients. The RO group was more susceptible to interference but had better recency score than the RR group. The RO had higher negative symptoms while the RR group had higher positive symptoms.  相似文献   
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