Visually induced gains in pitch discrimination: Linking audio-visual processing with auditory abilities

Perception is fundamentally a multisensory experience. The principle of inverse effectiveness (PoIE) states how the multisensory gain is maximal when responses to the unisensory constituents of the stimuli are weak. It is one of the basic principles underlying multisensory processing of spatiotemporally corresponding crossmodal stimuli that are well established at behavioral as well as neural levels. It is not yet clear, however, how modality-specific stimulus features influence discrimination of subtle changes in a crossmodally corresponding feature belonging to another modality. Here, we tested the hypothesis that reliance on visual cues to pitch discrimination follow the PoIE at the interindividual level (i.e., varies with varying levels of auditory-only pitch discrimination abilities). Using an oddball pitch discrimination task, we measured the effect of varying visually perceived vertical position in participants exhibiting a wide range of pitch discrimination abilities (i.e., musicians and nonmusicians). Visual cues significantly enhanced pitch discrimination as measured by the sensitivity index d’, and more so in the crossmodally congruent than incongruent condition. The magnitude of gain caused by compatible visual cues was associated with individual pitch discrimination thresholds, as predicted by the PoIE. This was not the case for the magnitude of the congruence effect, which was unrelated to individual pitch discrimination thresholds, indicating that the pitch-height association is robust to variations in auditory skills. Our findings shed light on individual differences in multisensory processing by suggesting that relevant multisensory information that crucially aids some perceivers’ performance may be of less importance to others, depending on their unisensory abilities.     

The effects of priming subjective control on reports of fear

Motivation and Emotion - According to appraisal theories, fear-related emotions are essentially influenced by appraisals of personal control. Most appraisal theories propose that control appraisals...     

Modular Treatment for Children and Adolescents With Problematic School Absenteeism: Development and Description of a Program in Germany

Problematic school absenteeism is defined as absence from school occurring with a clinical-level mental disorder. It represents a higher-order term for school refusal, school truancy, and the combination thereof and is associated with an increased risk for school dropout, prolonged mental disorders, and unemployment. This article describes the manualized modular treatment of problematic school absenteeism (MT) by a multiprofessional team. The manual was developed to target a broad spectrum of mental disorders characterized by internalizing but also externalizing behavior. The therapeutic focus is on the reintegration into school and on the cognitive behavioral treatment of the mental disorder. The MT is based on a multilevel model of problematic school absenteeism. The treatment is informed by an extensive case-conceptualization and addresses motivational aspects by offering a low-threshold therapeutic design and motivational interviewing. Core interventions are represented in four modules: cognitive behavioral therapy, family counseling, school counseling, and a psychoeducational physical exercise program. A case vignette provides an illustration of the treatment and the specific graduated approach for school reintegration. The current modular approach is discussed in relation to other cognitive-behavioral manuals targeting a broad spectrum of mental disorders or school refusal.     

Automatic behavioural responses to valence: Evidence that facial action is facilitated by evaluative processing

Are motor schemata of facial action spontaneously activated upon the processing of evaluative information? In this case, the processing of positive evaluative information should immediately trigger the motor schema of smiling, and the processing of negative information should trigger frowning. This hypothesis was tested in two experiments in which participants were required to respond to positive and negative words by either smiling or frowning. Electromyogram (EMG) activity was recorded over the brow muscle region (corrugator supercilii) and over the cheek muscle region (zygomaticus major) in order to quantify the latency of muscular response as a dependent measure. In Experiment 1 we found that participants were faster at contracting their zygomaticus muscle (which is involved in smiling) when evaluating positive words, and faster at contracting their corrugator muscle (which is involved in frowning) when evaluating negative words. In Experiment 2, participants were required to respond with the contraction of one of the two muscles whenever a word appeared on the computer screen. Again, we found that responses were faster to congruent response valence combinations than to incongruent response valence combinations. These findings support the hypothesis that evaluative processing is directly linked to motor schemata of facial muscles.     

Spaceship Archeology: Methodological Experiments in NSF Counter-Insurgency at the 2017 Oregon Eclipse Festival

Abstract

This article examines several aspects of knowledge production among practitioners of 21st century capitalism, critiquing the motivations, funding, methods, and dissemination of today’s politically and economically dominant epistemology. We document a methodological experiment undertaken during the Oregon Eclipse Festival—a week-long event coinciding with the solar eclipse that crossed the United States on August 21, 2017. As commissioned participants in the festival’s Art & Science exhibit, we designed an interactive archeological excavation that sought to produce material evidence corroborating the (un)reality of UFO activity in Oregon. From this performance, we highlight four insights into the relationship between science, evidence, and responsibility.