Dynamics of Word Comprehension in Infancy: Developments in Timing, Accuracy, and Resistance to Acoustic Degradation

Online comprehension of naturally spoken and perceptually degraded words was assessed in 95 children ages 12 to 31 months. The time course of word recognition was measured by monitoring eye movements as children looked at pictures while listening to familiar target words presented in unaltered, time-compressed, and low-pass-filtered forms. Success in word recognition varied with age and level of vocabulary development, and with the perceptual integrity of the word. Recognition was best overall for unaltered words, lower for time-compressed words, and significantly lower in low-pass-filtered words. Reaction times were fastest in compressed, followed by unaltered and filtered words. Results showed that children were able to recognize familiar words in challenging conditions and that productive vocabulary size was more sensitive than chronological age as a predictor of children's accuracy and speed in word recognition.     

Qualit?tssicherung in der Glaubhaftigkeitsbeurteilung

This article analyzes various levels of the quality discussion that are relevant for credibility assessment. On the highest level, the German Federal Supreme Court's (BGH) leading decision on scientific standards for psychological credibility assessment in 1999 has been exceptionally influential. The particular impact of this decision is that it does not just list general demands or name which topics need to be addressed, but lays down specific methodological standards. This has countered a frequent error in the past: namely, that of treating probabilistic indicators as if they were nomological laws. On the concrete level, the instrument known as the critical appraisal of methods (methodenkritische Stellungnahme) has frequently been used to uncover the quality deficits in existing expert's reports. The article points out that although a critical appraisal of methods is also a scientific instrument that has to meet minimum quality standards, these standards have not always been met in practice. Nonetheless, the best outcome of a specification of quality standards is the application in practice of the current state of knowledge in a discipline. Therefore, it has to be stressed that a viable quality discussion depends crucially on the allocation of sufficient research resources to engage in the evaluation and further development of diagnostic strategies for single-case assessments.     

Glaubhaftigkeitsbegutachtung – mehr als Merkmalsorientierte Inhaltsanalyse

The diagnostic value of criteria-based content analyses (CBCA) for assessing statement credibility has been widely acknowledged. However, theoretical considerations and empirical results show that CBCA is basically appropriate for discrimination between fabricated and truthful accounts. CBCA does not differentiate between truthful and suggested statements and can therefore not help to decide upon a suggestion hypothesis. Moreover truthful accounts do not always contain many CBCA criteria. It is argued that CBCA is for these reasons not a method for substantiating a truthful statement, but a method for rejecting a fabrication hypothesis As a whole Statement validity analysis is the process of systematically generating and evaluating hypotheses about potential origins of the given statement. Only in a subgroup of cases CBCA constitutes the major part of this diagnostic procedure.     

Patientensicht zur Qualität in der Psychotherapie

Concerning the discussion about the quality of psychotherapy, the different perspectives in the definition of quality are rarely considered. Especially the patients’ perspective is barely respected although quality assurance of psychotherapy should be for their benefit. Patients were interviewed (n=8) to answer the question which criteria of quality are relevant in their view. Using the grounded theory a variety of quality criteria was found. The interviewees emphasized the relationship between therapist and patient, the empathy of the therapist, the scheduling of appointments and the progress in therapy. The results suggest that when judging the quality of psychotherapy clients do not only focus on the outcome of psychotherapy, as presumed by some experts, but also on the dimensions structure and process. Professionals have to consider this fact when designing and applying methods of quality assurance.     

Uncertainty about perception and dissociation after compulsive-like staring: Time course of effects

Repeated and compulsive-like checking reduces confidence in memory for the last check. Obsessive-compulsive (OC) patients are not only uncertain about memory, but may also be uncertain about perception, while this perceptual uncertainty may be associated with prolonged visual fixation on the object of uncertainty. It was reported earlier that, among healthy participants, prolonged staring at light bulbs or gas rings induces OC-like uncertainty about perception and feelings of dissociation [van den Hout, M. A., Engelhard, I. M., de Boer, C., du Bois, A., & Dek, E. (2008). Perseverative and compulsive-like staring causes uncertainty about perception. Behaviour Research and Therapy, 46, 1300–1304]. In that study, staring continued for 10 min. For patients, however, staring intervals seem to be considerably shorter. To test the clinical credibility of the paradigm as a model of the maintenance of OC perceptual uncertainty, we investigated whether the effects of staring materialize long before 10 min. Five groups of 16 undergraduates participated: one group did not stare at a gas stove while the others stared for 7.5, 15, 30 or 300 s. In the absence of staring, no pre-to-post increase in dissociation/uncertainty was reported, but after staring it was. The larger part of the observed dissociation/uncertainty after 5 min had occurred within 30 s, and around 50% of this maximal increase was reported between 7.5 and 15 s. Thus, even relatively short intervals of staring induce uncertainty about perception and dissociative experiences. Perseverative looking at objects may be a counter-productive OC strategy, which increases uncertainty about perception and may serve to maintain the disorder.