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121.
Analgesic effects of posthypnotic suggestions and virtual reality distraction on thermal pain 总被引:1,自引:0,他引:1
The individual and combined effects of posthypnotic suggestion (PHS) and virtual reality distraction (VRD) on experimentally induced thermal pain were examined using a 2 x 2, between-groups design. After receiving baseline thermal pain, each participant received hypnosis or no hypnosis, followed by VRD or no VRD during another pain stimulus. Consistent with the hypothesis that hypnosis and VRD work via different mechanisms, results show that posthypnotic analgesia was moderated by hypnotizability but VRD analgesia was not. The impact of PHSs for analgesia was specific to high hypnotizables, whereas VRD was effective independent of hypnotizability. Results also show a nonsignificant but predicted pattern for high hypnotizables: Audio hypnosis combined with VRD reduced worst pain 22% more and pain unpleasantness 25% more than did VRD alone. Theoretical and clinical implications are discussed. 相似文献
122.
The authors examined whether differences between children and adults in the application of muscle forces during a dynamic-contact task (cycling) can be attributed to children's relatively lower segmental mass and moment of inertia. They examined pedal-force construction as adults and younger and older children (n = 7 in each group), with and without mass added to their limbs, pedaled an appropriately scaled bicycle ergometer. When mass was added to their limbs, children adjusted muscular forces on the pedal in a way that began to approach the pattern demonstrated by adults. Because age, neuromotor maturation, and motor experience were held constant, it seems plausible that by 6 to 8 years of age, and perhaps younger, physical size and growth limit children's production of adult-like muscle forces on the pedal. 相似文献
123.
Skordilis EK Koutsouki D Asonitou K Evans E Jensen B 《Perceptual and motor skills》2002,94(1):214-218
Differences in sport achievement orientations between 31 recreational wheelchair and 76 able-bodied basketball athletes were tested. Athletes from the New England region completed the three subscales of the Sport Orientation Questionnaire (competitiveness, win orientation, and goal orientation). Wheelchair athletes responded higher on the Competitiveness and Goal Orientation subscales. In discriminative function analysis competitiveness scores were the only significant discriminator between the two groups. 相似文献
124.
Strøyer J Essendrop M Jensen LD Warming S Avlund K Schibye B 《Perceptual and motor skills》2007,104(2):519-533
To test the validity and reliability of self-assessed physical fitness samples included healthcare assistants working at a hospital (women=170, men=17), persons working with physically and mentally handicapped patients (women=530, men= 123), and two separate groups of healthcare students (a) women=91 and men=5 and (b) women=159 and men=10. Five components of physical fitness were self-assessed by Visual Analogue Scales with illustrations and verbal anchors for the extremes: aerobic fitness, muscle strength, endurance, flexibility, and balance. Convergent and divergent validity were evaluated by age-adjusted correlations stratified by sex with performance-based measures of physical fitness. Self-assessed aerobic fitness (r = .36 - .64) (women/men), muscle strength (r = .30 - .51), and flexibility (r = .36 - .31) showed moderate convergent validity. The divergent validity was satisfactory except for flexibility among men. The reliability was moderate to good (ICC = .62 - .80). Self-assessed aerobic fitness, muscle strength, and flexibility showed moderate construct validity and moderate to good reliability using visual analogues. 相似文献
125.
Reconciling reinforcement learning models with behavioral extinction and renewal: implications for addiction, relapse, and problem gambling 总被引:5,自引:0,他引:5
Because learned associations are quickly renewed following extinction, the extinction process must include processes other than unlearning. However, reinforcement learning models, such as the temporal difference reinforcement learning (TDRL) model, treat extinction as an unlearning of associated value and are thus unable to capture renewal. TDRL models are based on the hypothesis that dopamine carries a reward prediction error signal; these models predict reward by driving that reward error to zero. The authors construct a TDRL model that can accommodate extinction and renewal through two simple processes: (a) a TDRL process that learns the value of situation-action pairs and (b) a situation recognition process that categorizes the observed cues into situations. This model has implications for dysfunctional states, including relapse after addiction and problem gambling. 相似文献
126.
Recent landmark content analyses of sexual content on television (e.g., Kunkel, Biely, Eyal, Cope-Farrar, Donnerstein, & Fandrich, 2003) provide a baseline for interpreting depictions of sex on individual programs. The present study was designed to investigate the nature and extent of sexual content on HBO’s popular television series Sex and the City. Compared to television in general, Sex and the City is more likely to depict sexual content (including sexual talk and behavior), intercourse between established partners (rather than between partners who had just met), and sexual risks and responsibilities (including sexual patience, precaution, and risks/negative consequences). Sex and the City does not differ from television in general in terms of pairing alcohol or drugs with sexual intercourse. The results suggest that Sex and the City is more likely than television in general to depict “healthy” sex. 相似文献
127.
Despite abundant literature theorizing societal implications of algorithmic decision making, relatively little is known about the conditions that lead to the acceptance or rejection of algorithmically generated insights by individual users of decision aids. More specifically, recent findings of algorithm aversion—the reluctance of human forecasters to use superior but imperfect algorithms—raise questions about whether joint human-algorithm decision making is feasible in practice. In this paper, we systematically review the topic of algorithm aversion as it appears in 61 peer-reviewed articles between 1950 and 2018 and follow its conceptual trail across disciplines. We categorize and report on the proposed causes and solutions of algorithm aversion in five themes: expectations and expertise, decision autonomy, incentivization, cognitive compatibility, and divergent rationalities. Although each of the presented themes addresses distinct features of an algorithmic decision aid, human users of the decision aid, and/or the decision making environment, apparent interdependencies are highlighted. We conclude that resolving algorithm aversion requires an updated research program with an emphasis on theory integration. We provide a number of empirical questions that can be immediately carried forth by the behavioral decision making community. 相似文献
128.
129.
Pia Callesen Anne Backhausen Jensen Adrian Wells 《Scandinavian journal of psychology》2014,55(1):60-64
Metacognitive therapy (MCT) for depression is derived from the Wells and Matthews (1994) self‐regulatory model, in which a Cognitive‐Attentional Syndrome (CAS) is the cause of psychological disorders. MCT for depression focuses on identifying patients' CAS and helps them to stop it. The CAS consists of worry, rumination and dysfunctional coping strategies. The focus in MCT is on removing the CAS by challenging positive and negative metacognitive beliefs and eliminating dysfunctional behaviors. In this case series, MCT was delivered to four depressed Danes and treatment was evaluated in 5–11 sessions of up to one hour each. An A‐B design with follow‐up at 3 and 6 months was conducted and the primary outcome was Beck's Depression Inventory II (BDI‐II). We measured CAS processes with the Major depressive Disorder Scale (MDD‐S). The results of the case series showed clinically significant improvements in depressive symptoms, rumination and metacognitive beliefs and the effects were still present at follow‐up for all patients. The small number of patients and decreasing baselines observed in some cases limits the conclusions. However, the results suggest that this treatment is feasible and was associated with large improvements in symptoms when delivered away from its point of origin and in a Danish help‐seeking sample. 相似文献
130.
Howard R. Pollio Peter R. Jensen Michael A. O’Neil 《Journal of psycholinguistic research》2014,43(1):81-104
Three empirical studies and one analysis of pre-existing data were performed to determine the everyday meanings of time, a major component of phenomenological analyses of human experience. To this end, participants in Studies 1 and 2 sorted time related words into groups having similar meanings, with these groups then evaluated by hierarchical clustering procedures. Results of Studies 1 and 2 produced similar clustering patterns suggesting it was possible to define the everyday meanings of time in terms of experiences of change and continuity, linear organization, tempo, and boundaries. Results of Study 3 indicated little or no effect on clustering patterns of time words when space words also were included in the set of items to be sorted. Concerns about the size and representativeness of the words used as stimuli in Studies 1, 2 and 3 led to an analysis of over 2,000 words falling under the general heading of Time in Roget’s Thesaurus. Results of this analysis revealed that clusters comparable to those obtained in the other three studies also appeared in these data. These results were discussed in terms of their implications for the way in which “invisible” concepts such as time are thought about and used, particularly as related to figurative expression. 相似文献