A theory of behavior interaction in dyads: A structuralist account

A theory from the behavioral and social sciences is presented from the structuralist point of view. A more comprehensive theory-net is outlined, some basic terms and core assumptions are formulated, and an expansion of the theory towards two intended applications is given. Finally, some results of a first empirical test of the theory are reported. The aim of the paper is to show that the structuralist account of scientific theories is not confined to mathematical theories from the natural sciences, but can also be applied to relatively informal constructions of the behavioral and social sciences.     

Embracing complexity in research on learning from examples and from problem solving

This contribution is a commentary to a special issue titled “Example-based learning: New theoretical perspectives and advances to a contemporary instructional approach” published in Applied Cognitive Psychology (2020). In the commentary, the presented research is discussed with respect to three extensions compared with previous research, namely, theoretical frameworks, learning scenarios and domains. It concludes with some suggestions for methodological advancements.     

Disability and employment – overview and highlights

Due to the expected decline in the working-age population, especially in European countries, people with disabilities are now more often recognized as a valuable resource in the workforce and research into disability and employment is more important than ever. This paper outlines the state of affairs of research on disability and employment. We thereby focus on one particular group of people with disabilities, that is to say people with mental disabilities. We define disability according to the International Classification of Functioning, Disability and Health (ICF) of the World Health Organization, by that recognizing that disability results from the interaction of person and environment. Key issues, including the complexity of defining disability, the legal situation in Europe and North America concerning disability at work, and barriers and enablers to employment, are discussed. For each of the topics we show important findings in the existing literature and indicate where more in-depth research is needed. We finalize with a concrete research agenda on disability and employment and provide recommendations for practice.     

Formation of semantic associations between subliminally presented face-word pairs

Recent evidence suggests that consciousness of encoding is not necessary for the rapid formation of new semantic associations. We investigated whether unconsciously formed associations are as semantically precise as would be expected for associations formed with consciousness of encoding during episodic memory formation. Pairs of faces and written occupations were presented subliminally for unconscious associative encoding. Five minutes later, the same faces were presented suprathreshold for the cued unconscious retrieval of face-occupation associations. Retrieval instructions required participants to classify the presented individuals according to their putative (1) regularity of income, (2) length of education, and (3) creativity value of occupational activity. The three instructions yielded more classifications consistent with a person’s occupation if the person had been subliminally presented with his written occupation versus a meaningless word (control condition). This suggests that consciousness is not necessary to encode, long-term store, and retrieve semantically precise associations between primarily unrelated items.     

Cortical electrophysiological network dynamics of feedback learning

Understanding the neurophysiological mechanisms of learning is important for both fundamental and clinical neuroscience. We present a neurophysiologically inspired framework for understanding cortical mechanisms of feedback-guided learning. This framework is based on dynamic changes in systems-level oscillatory synchronization, reflecting changes in synaptic plasticity between stimulus-processing and motor areas that are modulated in a top-down fashion by different areas of the prefrontal cortex. We make new and testable predictions for how large-scale cortical networks support learning from feedback. Testing these predictions may provide new insights into the basic mechanisms underlying learning and how these mechanisms may be impaired in clinical disorders in which feedback learning is compromised.     

Color is necessary for face discrimination in the Northern paper wasp,Polistes fuscatus

Animal Cognition - Visual individual recognition requires animals to distinguish among conspecifics based on appearance. Though visual individual recognition has been reported in a range of taxa...     

The role of somatosensory stimulation in social phobia—An analysis of hand coordination in patients and therapeutic dyads during psychodynamic psychotherapy

In the psychotherapeutic treatment of social phobia, the hand movement behaviour exhibited during the interaction provides information about the success of the therapy. In particular, the degree of mutual somatosensory stimulation of the hands (hands moving on each other, as a unit, apart) appears to be relevant regarding the patient's mental state. To test this hypothesis, the present study investigates hand coordination in the course of psychotherapy in patients with and without symptom improvement and in the corresponding therapeutic dyads. Forty-two videos of patient–therapist dyads consisting of 21 patients (n = 11 non-improved; n = 10 improved; according to Liebowitz Social Anxiety Scale self-assessment) from the Social Phobia Research Network project were investigated in early psychotherapy sessions and in pre-last sessions. Hand movements of four randomised video sequences per dyad were analysed with NEUROGES^®-ELAN. Patients with non-improved symptoms displayed shorter act apart coordination and more act on each other coordination than patients with improved symptoms. Patients displayed more act apart and act on each other and less act as a unit coordination than therapists. In therapeutic dyads, act on each other coordination in early sessions, as well as short act apart coordination, was significantly related to non-improvement. Patients with non-improved symptoms are characterised by more hand coordination associated with a high degree of somatosensory stimulation serving self-regulation (act on each other), as well as short complex gestural expressions (act apart). Thus, hand coordination constitutes a progression and outcome parameter informing on somatosensory stimulation.     

Long-term memory for 400 pictures on a common theme

Long-term memory for large numbers of color photographs with a common motif--doors--was studied using pictures with two levels of informative cues: original photographs, and edited pictures in which extraneous information on details such as vegetation, paint scratches, signs, and lamp posts was removed. In the study phase, subjects viewed 400 pictures and were subsequently tested for memory on two-alternative forced-choice discriminations between studied and distracter pictures from the same picture category, at retention intervals between 0.5 h and 9 days. When tested with the nonedited original photographs immediate memory performance was close to 85% correct; when pictorial details were removed memory performance dropped by 20%. The decay functions were shallow with parallel paths for the categories of pictures. It is concluded that specific details of visual scenes contributed to long-term memory of those scenes.     

Mood states determine the degree of task shielding in dual-task performance

Current models of multitasking assume that dual-task performance and the degree of multitasking are affected by cognitive control strategies. In particular, cognitive control is assumed to regulate the amount of shielding of the prioritised task from crosstalk from the secondary task. We investigated whether and how task shielding is influenced by mood states. Participants were exposed to two short film clips, one inducing high and one inducing low arousal, of either negative or positive content. Negative mood led to stronger shielding of the prioritised task (i.e., less crosstalk) than positive mood, irrespective of arousal. These findings support the assumption that emotional states determine the parameters of cognitive control and play an important role in regulating dual-task performance.