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41.
Homework assignments are part of many treatment manuals for behaviour therapy. Their effectiveness for treatment success has now been shown. Far less is known about their implementation in everyday clinical practice. To offer topical data concerning the utilization of homework and the attitude towards it, we explored a sample of 140 therapists with different theoretical background and with varying degrees of therapeutic experience. Most of the participants frequently used homework assignments. Behaviour therapists use homework significantly more often than analytical therapists and have a more positive attitude towards them. Interestingly, the degree of experience had no influence on utilization of homework. Nearly all participants are familiar with the problem of unaccomplished assignments. Future directions for research und postgraduate courses are outlined. 相似文献
42.
Anna Gsottschneider Zasu Keller Gabriele Pitschel‐Walz Teresa Froböse Josef Bäuml Thomas Jahn 《Journal of Neuropsychology》2011,5(1):56-72
Background. Verbal learning and memory is often compromised in patients with schizophrenia who prefer encoding words in order of their presentation (serial clustering) rather than using semantic categories (semantic clustering). Method. One hundred and four in‐patients with schizophrenia were assessed twice with the California Verbal Learning Test. Results. Patients showed significantly less semantic than serial clustering at both assessment times. Usage of encoding strategies were not stable over time. An increase in semantic clustering improved recall and recognition performance. Conclusions. Patients with schizophrenia should be taught to use the more effective encoding strategy of semantic clustering in order to improve their memory performance. 相似文献
43.
Gabriele Janzen 《Quarterly journal of experimental psychology (2006)》2013,66(3):493-508
In everyday life people have to deal with tasks such as finding a novel path to a certain goal location, finding one's way back, finding a short cut, or making a detour. In all of these tasks people acquire route knowledge. For finding the same way back they have to remember locations of objects like buildings and additionally direction changes. In three experiments using recognition tasks as well as conscious and unconscious spatial priming paradigms memory processes underlying wayfinding behaviour were investigated. Participants learned a route through a virtual environment with objects either placed at intersections (i.e., decision points) where another route could be chosen or placed along the route (non-decision points). Analyses indicate first that objects placed at decision points are recognized faster than other objects. Second, they indicate that the direction in which a route is travelled is represented only at locations that are relevant for wayfinding (e.g., decision points). The results point out the efficient way in which memory for object location and memory for route direction interact. 相似文献
44.
Gabriele?OettingenEmail author Doris?Mayer Jennifer?S. ?Thorpe Hanna?Janetzke Solvig?Lorenz 《Motivation and emotion》2005,29(4):236-266
Contrasting fantasies about the future with reflections on reality that impedes fantasy realization creates a tight link between expectations of success and forming commitments to self-improvement goals. This effect applies to both fantasies about a positive future contrasted with impeding negative reality as well as fantasies about a negative future contrasted with impeding positive reality. In Study 1, with 63 student participants, contrasting positive fantasies about benefiting from a vocational training with negative reflections on reality impeding such benefits led to expectancy-dependent willingness to invest in the training, more so than indulging in the positive future and than dwelling on the negative reality. In Study 2, with 158 high school students from former East Berlin, contrasting negative, xenophobic fantasies about suffering from the influx of immigrants with positive reflections on reality impeding such suffering led to expectancy-dependent tolerance and willingness to integrate the immigrants. Findings are discussed in terms of how mental contrasting facilitates self-improvement and personal development by making people form expectancy-dependent goal commitments to approach positively-perceived as well as negatively-perceived futures. 相似文献
45.
We examined, in two experiments, the perceptual scaling of the properties of haptically examined virtual surfaces, and the way in which these properties subjectively combine. Participants used a consistent movement pattern to explore, with a stylus, virtual surfaces generated by a force-feedback device. In experiment 1, four surface properties (bump size, friction, resistance to normal force, and vibration amplitude) were varied individually, in separate blocks of trials. Free magnitude estimates of the subjective dimensions corresponding to these properties showed that all four dimensions conformed closely to the power law, except at very low stimulus values. Exponents for bump size (0.80) and stiffness (1.01) were consistent with values established in earlier work with direct touch of real surfaces. Surprisingly, the exponent for stickiness, not previously measured, was much higher than those for other dimensions (1.49). In experiment 2, dimensional combinations were analyzed by asking subjects to give magnitude estimates of the subjective difference between pairs of surfaces differing in one or two properties. Magnitude estimates of a given one-dimensional difference were generally larger when the subject was pressing down firmly on the surfaces, than when only gentle downward pressure was required; this result suggests that forces generated when a surface is haptically examined are interpreted as invariant indicators of the magnitudes of the surface properties themselves. Estimates of one-dimensional differences were also used to make predictions of two-dimensional differences, under assumptions of dimensional integrality and separability. The results fell between these two sets of predictions, indicating only modest integration of surface properties examined with indirect touch. 相似文献
46.
Bartholow BD Pearson MA Gratton G Fabiani M 《Journal of personality and social psychology》2003,85(4):627-638
The acute effects of alcohol on cognitive processing of expectancy violations were investigated using event-related brain potentials and a cued recall task to index attentional and working memory processes associated with inconsistency resolution. As predicted, expectancy-violating behaviors elicited larger late positive potentials (LPP) and were recalled better than expectancy-consistent behaviors. These effects were moderated by alcohol and the valence of initial expectancies. For placebo group participants, positive targets performing negative behaviors elicited the largest LPP responses and were recalled best. For those in the alcohol groups, negative targets behaving positively elicited the largest LPP and recall responses. These findings suggest that alcohol does not globally impair working memory processes in person perception but instead changes the nature of valenced information processing. Findings are discussed in the context of alcohol's effects on working memory processes, reward sensitivity, and the prefrontal cortical structures thought to mediate them. 相似文献
47.
A.?BergerEmail author K.?-M.?Scheibe S.?Michaelis W.?J.?Streich 《Behavior research methods》2003,35(3):458-466
A biorhythmical method has been developed to assess behavior patterns and to evaluate the living conditions of animals that
can be applied also to humans. All kinds of continuous and equidistant long-term recordings of behavior are suitable for this
method. Time functions from an automatic telemetry system (ETHOSYSII) were analyzed macroscopically (comparison of daily levels)
and microscopically (autocorrelation function and power spectral analysis). Degrees of functional coupling (DFCs) were calculated
to identify and evaluate disturbances in behavior. Hierarchic frequency tuning of complex rhythmic functions of behaviors,
leads primarily to period lengths that are synchronized with the 24-h period. DFCs, a measure of harmony between internal
rhythms and the external 24-h period, were found to be high in well-adapted, healthy, and undisturbed individuals but were
lowered during periods of adaptation, sickness, or social interaction. Specific stress conditions could be identified and
evaluated in several species, under various conditions, using these biorhythmic analyses. 相似文献
48.
The authors examined the effect of inserting observation practice and undirected dialog into the rest interval between practice trials on the learning of a complex task (stabilometer). Training protocols in which learners practice in pairs (dyads) result in increases in learning efficiency, but the critical issue is the effect on learning effectiveness. Three groups of participants (n = 12 in each group) practiced maintaining their balance on a stabilometer. One group practiced individually, and the other 2 groups practiced in dyads in which 1 performer practiced the task while the other observed. In the dyad-alternate condition, participants alternated between physical, observational, and dialog practice on each trial, whereas in the dyad-control condition, subjects completed all trials on 1 form of practice (either physical or observational practice) before engaging in the other form. The results indicated that the dyad-alternate group initially performed more poorly but quickly overtook the individual group, and the performance advantage of the dyad-alternate group was maintained on the delayed retention test. When the different forms of practice were performed consecutively, as in the dyad-control group, acquisition and retention performance was generally poorer than when they were alternated. Those results suggest that one can combine the benefits of physical practice, observation, and dialog between learners in an interactive way to produce an effective and efficient learning protocol. 相似文献
49.
Bettina M. Pause Roman Ferstl Gabriele Fehm-Wolfsdorf 《Journal of research in personality》1998,32(4):510-518
Even though perceptional abilities have repeatedly been found to be associated with certain personality styles (e.g., extraversion), such connections were reported sparsely for the olfactory modality. Two studies were carried out to investigate the relationship between olfactory sensitivity and 12 personality dimensions (including extraversion and neuroticism). In the first study, single olfactory measurements were compared to repeated measurements. In the second study, twins were recruited as subjects to also examine the heredity of olfactory sensitivity. The results indicate that neuroticism is a stronger predictor for olfactory sensitivity than extraversion. Repeated measurements seem to be necessary to obtain valid data on olfactory performance. 相似文献
50.
Gabriele Gratton 《Behavior research methods》1998,30(1):44-53
Eye movements and blinks represent a major source of artifacts in the electroencephalogram (EEG) and event-related brain potentials (ERPs). The origin of this artifact is the large difference in potential that exists between the cornea and the retina. Eye movements and blinks produce shifts of the electric fields that propagate across the whole head and that can be several times larger than the activity generated by the brain. Ocular activity can be monitored by electrodes located near the eyes (electrooculogram, or EOG). The electric fields associated with eye movements and blinks are somewhat different. The simplest procedure for dealing with ocular artifacts is to eliminate trials on which EOG activity is detected (rejection). However, this technique may result in data loss and biased data samples, especially when one is comparing clinical populations or tasks involving large amounts of eye movements. Another approach involves estimation and correction of the ocular artifact on the EEG and ERP traces. Several techniques have been proposed. Some of them are reviewed in the present paper. Issues related to the accuracy of the various techniques, as well as other advantages and limitations, are also discussed. Finally, general guidelines for how to deal with ocular artifacts are proposed. 相似文献