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Institute
- Department Psychologie (110) (remove)
From early on in life, children are able to use information from their environment to form predictions about events. For instance, they can use statistical information about a population to predict the sample drawn from that population and infer an agent’s preferences from systematic violations of random sampling. We investigated whether and how young children infer an agent’s sampling biases. Moreover, we examined whether pupil data of toddlers follow the predictions of a computational model based on the causal Bayesian network formalization of predictive processing. We formalized three hypotheses about how different explanatory variables (i.e., prior probabilities, current observations, and agent characteristics) are used to predict others’ actions. We measured pupillary responses as a behavioral marker of ‘prediction errors’ (i.e., the perceived mismatch between what one’s model of an agent predicts and what the agent actually does). Pupillary responses of 24-month-olds, but not 18-month-olds, showed that young children integrated information about current observations, priors and agents to make predictions about agents and their actions. These findings shed light on the mechanisms behind toddlers’ inferences about agent-caused events. To our knowledge, this is the first study in which young children's pupillary responses are used as markers of prediction errors, which were qualitatively compared to the predictions by a computational model based on the causal Bayesian network formalization of predictive processing.
Working memory (WM), which underlies the temporary storage and manipulation of information, is critical for multiple aspects of cognition and everyday life. Nevertheless, research examining WM specifically in older adults remains limited, despite the global rapid increase in human life expectancy. We examined WM in a large sample (N=754) of healthy older adults (aged 58-89) in a non-Western population (Chinese speakers) in Taiwan, on a digit n-back task. We tested not only the influence of age itself and of load (1-back vs. 2-back) but also the effects of both sex and education, which have been shown to modulate WM abilities. Mixed-effects regression revealed that, within older adulthood, age negatively impacted WM abilities (with linear, not nonlinear, effects), as did load (worse performance at 2-back). In contrast, education level was positively associated with WM. Moreover, both age and education interacted with sex. With increasing age, males showed a steeper WM decline than females; with increasing education, females showed greater WM gains than males. Together with other findings, the evidence suggests that age, sex, and education all impact WM in older adults, but interact in particular ways. The results have both basic research and translational implications and are consistent with particular benefits from increased education for women.
Successful communication often involves comprehension of both spoken language and observed actions with and without objects. Even very young infants can learn associations between actions and objects as well as between words and objects. However, in daily life, children are usually confronted with both kinds of input simultaneously. Choosing the critical information to attend to in such situations might help children structure the input, and thereby, allow for successful learning. In the current study, we therefore, investigated the developmental time course of children’s and adults’ word and action learning when given the opportunity to learn both word-object and action-object associations for the same object. All participants went through a learning phase and a test phase. In the learning phase, they were presented with two novel objects which were associated with a distinct novel name (e.g., “Look, a Tanu”) and a distinct novel action (e.g., moving up and down while tilting sideways). In the test phase, participants were presented with both objects on screen in a baseline phase, then either heard one of the two labels or saw one of the two actions in a prime phase, and then saw the two objects again on screen in a recognition phase. Throughout the trial, participants’ target looking was recorded to investigate whether participants looked at the target object upon hearing its label or seeing its action, and thus, would show learning of the word-object and action-object associations. Growth curve analyses revealed that 12-month-olds showed modest learning of action-object associations, 36-month-olds learned word-object associations, and adults learned word-object and action-object associations. These results highlight how children attend to the different information types from the two modalities through which communication is addressed to them. Over time, with increased exposure to systematic word-object mappings, children attend less to action-object mappings, with the latter potentially being mediated by word-object learning even in adulthood. Thus, choosing between different kinds of input that may be more relevant in their rich environment encompassing different modalities might help learning at different points in development.
Using behavioral observation for the longitudinal study of anger regulation in middle childhood
(2019)
Assessing anger regulation via self-reports is fraught with problems, especially among children. Behavioral observation provides an ecologically valid alternative for measuring anger regulation. The present study uses data from two waves of a longitudinal study to present a behavioral observation approach for measuring anger regulation in middle childhood. At T1, 599 children from Germany (6-10 years old) were observed during an anger eliciting task, and the use of anger regulation strategies was coded. At T2, 3 years later, the observation was repeated with an age-appropriate version of the same task. Partial metric measurement invariance over time demonstrated the structural equivalence of the two versions. Maladaptive anger regulation between the two time points showed moderate stability. Validity was established by showing correlations with aggressive behavior, peer problems, and conduct problems (concurrent and predictive criterion validity). The study presents an ecologically valid and economic approach to assessing anger regulation strategies in situ.
Updating and reasoning
(2019)
Two issues should be addressed to refine and extend the distinction between temporal updating and reasoning advocated by Hoerl & McCormack. First, do the mental representations constructed during updating differ from those used for reasoning? Second, are updating and reasoning the only two processes relevant to temporal thinking? If not, is a dual-systems framework sensible? We address both issues below.
Recent research on proactive work behaviours (PWBs) pointed out that these behaviours can have negative consequences for the proactive individual. We add to this perspective by showing that PWBs may be a source of strain at work and result in elevated time pressure. Challenging the view of time pressure as a challenge stressor, we hypothesize that over the course of work weeks, time pressure will result in less (rather than more) PWB. We investigate these reciprocal effects as within-person, week-level fluctuations of time pressure and PWB based on experience sampling data (N = 52 participants, k = 274 observations). Over the course of three consecutive work weeks, results show a positive lagged effect of PWB in the first week on experiencing time pressure in the second week; in turn, time pressure in the second week had a negative lagged effect on PWB in the third week. Results further suggest that PWB is lowest in work weeks of low time pressure when following a week of high time pressure, indicating a conservation of resources interpretation of the results.
Southeast Asia is one of the most dynamic regions in the world. It is experiencing rapid socioeconomic change that may influence the level of sexual aggression, but data on the scale of sexual aggression in the region remain sparse. The aim of the present article was to systematically review the findings of studies available in English on the prevalence of self-reported sexual aggression and victimization among women and men above the age of 12 years in the 11 countries of Southeast Asia (Brunei, Cambodia, East Timor, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand, and Vietnam). Based on four scientific databases, the search engine Google, Opengrey database, and reference checking, 49 studies were found on sexual victimization. Of those, 32 included only women. Self-reported perpetration was assessed by only three studies and included all-male samples. Prevalence rates varied widely across studies but showed that sexual victimization was widespread among different social groups, irrespective of sex and sexual orientation. Methodological heterogeneity, lack of representativeness of samples, imbalance of information available by country, missing information within studies, and cultural differences hampered the comparability between and within countries. There is a need for operationalizations that specifically address sexual aggression occurring after the age of consent, based on detailed behavioral descriptions of unwanted sexual experiences and allied to a qualitative approach with cultural sensitivity. Data on sexual aggression in conflict settings and in human trafficking are also limited. Recommendations for future research are presented in the discussion.
Objective
There is a very limited amount of research on the relationship between therapist and patient in‐session behavior and treatment outcome in cognitive behavioral therapy (CBT) for panic disorder with agoraphobia (PD/AG). Additionally, the findings tend to be inconclusive. This study investigates the association between therapist competence, adherence, patient interpersonal behavior, and therapeutic alliance and outcome in a low‐control CBT setting by using comprehensive measures.
Methods
Twenty‐six patients with PD/AG received 12 sessions of exposure‐based CBT. With regard to the outcome, treatments were classified either as problematic or nonproblematic by means of distinct criteria. Two raters evaluated the in‐session behavior.
Results
Patient interpersonal behavior was significantly associated with outcome at follow‐up (r = 0.49). At posttreatment, the correlation did not reach significance ( r = 0.34). Competence, adherence, and alliance were not outcome associated.
Conclusion
The findings emphasize the need for therapists to pay particular attention to patients’ interpersonal behavior during treatment.
A recent extension of the stressor-detachment model holds that the path running from job stressors via psychological detachment to impairment of well-being is moderated by both personal and job resources (Sonnentag & Fritz, 2015). The aim of the present study was to test this proposition by investigating the moderating role of one personal resource and one job resource (i.e., coworker social support and general self-efficacy, respectively) on the linkage between different job stressors (i.e., workload and role ambiguity), detachment, and well-being. Hypotheses were tested with structural equation modeling using data from a representative survey of the German workforce (N = 3,937 employees, M-age = 46.5 years, 47.5% women). In agreement with previous findings, the results showed that psychological detachment mediated the negative effects of job stressors on well-being. Social support from coworkers buffered the mediation such that the conditional indirect effects of workload and role ambiguity on well-being via detachment were weaker at higher levels of support. General self-efficacy did not moderate the stressor-well-being linkage. These results imply that social support can be considered as a protective factor that helps employees maintain their well-being by alleviating the negative effects of job stressors on their ability to switch off mentally from work.
The effects of potentially real and hypothetical rewards on effort discounting in a student sample
(2019)
The primary aim of the present study was to investigate the functional form of discounting of monetary rewards by physical effort in potentially real and hypothetical contexts. Individuals (N = 142) completed the assessments with hypothetical and potentially real effort discounting tasks, and their hypothetical or potentially real consequences. The data obtained from the experiment reported here suggest that hypothetical conditions yield patterns of discounting that mirror those for potentially real effort tasks and outcomes. However, this finding also leaves open the possibility that the degree of discounting may change together with the repeated exposure to the consequences of decisions, or the counterbalanced order of hypothetical and potentially real tasks.
Suboptimal post-operative improvements in functional capacity are often observed after minimally invasive aortic valve replacement (mini-AVR). It remains to be studied how AVR affects the cardiopulmonary and skeletal muscle function during exercise to explain these clinical observations and to provide a basis for improved/tailored post-operative rehabilitation. Twenty two patients with severe aortic stenosis (AS) (aortic valve area (AVA) < 1.0 cm(2)) were preoperatively compared to 22 healthy controls during submaximal constant-workload endurance-type exercise for oxygen uptake (V-O2), carbon dioxide output (V-CO2), respiratory gas exchange ratio, expiratory volume (V-E), ventilatory equivalents for O-2 (V-E/V-O2) and CO2 (V-E/V-CO2), respiratory rate (RR), tidal volume (V-t), heart rate (HR), oxygen pulse (V-O2/HR), blood lactate, Borg ratings of perceived exertion (RPE) and exercise-onset V-O2 kinetics. These exercise tests were repeated at 5 and 21 days after AVR surgery (n = 14), along with echocardiographic examinations. Respiratory exchange ratio and ventilatory equivalents (V-E/V-O2 and V-E/V-CO2) were significantly elevated, V-O2 and V-O2/HR were significantly lowered, and exercise-onset V-O2 kinetics were significantly slower in AS patients vs. healthy controls (P < 0.05). Although the AVA was restored by mini-AVR in AS patients, V-E/V-O2 and V-E/V-CO2 further worsened significantly within 5 days after surgery, accompanied by elevations in Borg RPE, V-E and RR, and lowered V-t. At 21 days after mini-AVR, exercise-onset V-O2 kinetics further slowed significantly (P < 0.05). A decline in pulmonary function was observed early aftermini-AVRsurgery, which was followed by a decline in skeletal muscle function in the subsequent weeks of recovery. Therefore, a tailored rehabilitation programmeshould include training modalities for the respiratory and peripheral muscular system.
This research was designed to adapt and investigate the psychometric properties of the Short Dark Triad measure (Jones and Paulhus Assessment, 21(1), 28-41, 2014) in a German sample within four studies (total N=1463); the measure evaluates three personality dimensions: narcissism, psychopathy, and Machiavellianism. The structure of the instrument was analysed by Confirmatory Factor Analyses procedure. It indicated that the three-factor structure had the best fit to the data. Next, the Short Dark Triad measure was evaluated in terms of construct, convergent and discriminant validity, internal consistency ( .72), and test-retest reliability during a 4-week period ( .73). Concurrent validity of the SD3 was supported by relating its subscales to measures of the Big Five concept, aggression, and self-esteem. We concluded that the Short Dark Triad instrument presented high cross-language replicability. The use of this short inventory in the investigation of the Dark Triad personality model in the German language context is suggested.
The present article deals with the question of how the difficulty of a text affects a reader's tendency to engage in task-unrelated thinking (mind wandering) during reading, and the potential role of topic interest as a mediator of the relation between text difficulty and mind wandering. Two-hundred and sixteen participants read three texts with each text either being easy, moderate, or difficult in terms of readability and cohesion. From time to time during reading, participants were interrupted and required to indicate whether they were voluntarily or involuntarily engaging in mind wandering. After reading each text, they rated their interest in and familiarity with the topic, and subsequently answered a number of comprehension questions. The results revealed that reading difficult texts increased both voluntary and involuntary mind wandering and this increase partially explained the negative relation between text difficulty and comprehension. Furthermore, topic interest fully mediated the effect of text difficulty on both forms of mind wandering.
The present article reports four experiments that investigated the effects of task-unrelated thoughts (TUTs) on forgetting in non-verbal working memory. Participants had to remember three non-verbal stimuli over unfilled retention intervals (RIs) and then judge whether or not a subsequently presented probe stimulus matched one of the to-be-remembered stimuli. Participants additionally responded to randomly appearing probes that measured different aspects of their TUT engagement during the RI of the preceding trial. Forgetting over unfilled RIs was observed in three of four experiments and reliably associated with the proportion of time spent on TUTs. In contrast, the visual and auditory nature of the TUTs and the number of different TUTs did not reliably predict forgetting. The results support the view that TUTs block attention-based processes that are needed for restoring decaying memory representations rather than an alternative account in terms of interference caused by the content of the TUTs.
The current study tests the hypothesis that shy children’s reduced word learning is partly due to an effect of shyness on attention during object labeling. A sample of 20- and 26-month-old children (N = 32) took part in a looking-while-listening task in which they saw sets of familiar and novel objects while hearing familiar or novel labels. Overall, children increased attention to familiar objects when hearing their labels, and they divided their attention equally between the target and competitors when hearing novel labels. Critically, shyness reduced attention to the target object regardless of whether the heard label was novel or familiar. When children’s retention of the novel word–object mappings was tested after a delay, it was found that children who showed increased attention to novel objects during labeling showed better retention. Taken together, these findings suggest that shyer children perform less well than their less shy peers on measures of word learning because their attention to the target object is dampened. Thus, this work presents evidence that shyness modulates the low-level processes of visual attention that unfold during word learning.
Although the observation and assessment of psychotherapeutic competences are central to training, supervision, patient care, quality control, and life-long practice, structured instruments are used only occasionally. In the current study, an observation-based tool for the Assessment of Core CBT Skills (ACCS) was translated into German and adapted, and its psychometric properties were pilot evaluated. Competence of therapists-in-training was assessed in a random sample of n = 30 videos on cognitive behavioural therapy including patients diagnosed with hypochondriasis. Two of three raters independently assessed the competences demonstrated in the entire, active treatment sessions (n = 60). In our sample, internal consistency was excellent, and interrater reliability was good. Convergent validity (Cognitive Therapy Scale) and discriminant validity (Helping Alliance Questionnaire) were within the expected ranges. The ACCS total score did not significantly predict the reduction of symptoms of hypochondriasis, and a one-factorial structure of the instrument was found. By providing multiple opportunities for feedback, self-reflection, and supervision, the ACCS may complement current tools for the assessment of psychotherapeutic competences and importantly support competence-based training and supervision.
Stable preview difficulty effects in reading with an improved variant of the boundary paradigm
(2019)
Using gaze-contingent display changes in the boundary paradigm during sentence reading, it has recently been shown that parafoveal word-processing difficulties affect fixations on words to the right of the boundary. Current interpretations of this post-boundary preview difficulty effect range from delayed parafoveal-on-foveal effects in parallel word-processing models to forced fixations in serial word-processing models. However, these findings are based on an experimental design that, while allowing to isolate preview difficulty effects, might have established a bias with respect to asymmetries in parafoveal preview benefit for high-frequent and low-frequent target words. Here, we present a revision of this paradigm varying the preview’s lexical frequency and keeping the target word constant. We found substantial effects of the preview difficulty in fixation durations after the boundary confirming that preview processing affects the oculomotor decisions not only via trans-saccadic integration of preview and target word information. An additional time-course analysis showed that the preview difficulty effect was significant across the full fixation duration distribution on the target word without any evidence on the pretarget word before the boundary. We discuss implications of the accumulating evidence of post-boundary preview difficulty effects for models of eye movement control during reading.
Scene viewing is used to study attentional selection in complex but still controlled environments. One of the main observations on eye movements during scene viewing is the inhomogeneous distribution of fixation locations: While some parts of an image are fixated by almost all observers and are inspected repeatedly by the same observer, other image parts remain unfixated by observers even after long exploration intervals. Here, we apply spatial point process methods to investigate the relationship between pairs of fixations. More precisely, we use the pair correlation function, a powerful statistical tool, to evaluate dependencies between fixation locations along individual scanpaths. We demonstrate that aggregation of fixation locations within 4 degrees is stronger than expected from chance. Furthermore, the pair correlation function reveals stronger aggregation of fixations when the same image is presented a second time. We use simulations of a dynamical model to show that a narrower spatial attentional span may explain differences in pair correlations between the first and the second inspection of the same image.