Human Decisions in Moral Dilemmas are Largely Described by Utilitarianism: Virtual Car Driving Study Provides Guidelines for Autonomous Driving Vehicles

Science and Engineering Ethics - Ethical thought experiments such as the trolley dilemma have been investigated extensively in the past, showing that humans act in utilitarian ways, trying to cause...     

Grouping in the shine-through effect

How the elements of a visual scene are grouped into objects is one of the most fundamental but still poorly understood questions in visual neuroscience. Most investigations of perceptual grouping focus on static stimuli, neglecting temporal aspects. Using a masking paradigm, we show that the neural mechanisms underlying grouping seem to be both fast and complex. For example, a vernier target was followed by, first, a briefly presented grating and, then, a long-lasting, extended grating. Under these conditions, the briefly presented grating is hardly visible. Still, vernier discrimination strongly changed with the number of elements of the briefly displayed grating being worst for small gratings. In accordance with a neural network model of masking, we propose that the edges of the briefly presented grating and the vernier interfere in spite of the short presentation time. We suggest that this fast edge processing is a first step for unconscious grouping processes.     

Paruresis

The paruretic disorder, a special subtype of social phobia, is presented. It has been almost completely neglected by German research. The disorder manifests in an inability to urinate in public rest rooms. The corresponding fears concern the loss of visual and/or acoustic privacy. Based on considerations about its etiology and pathogenesis a cognitive behavior-therapeutic intervention is recommended. This is illustrated by a case vignette of a 29-year-old male patient.     

Heart-Rate responses (HRR) to lateralized visual stimuli

Direction of changes in heart-rate responses (HRR) were investigated in three separate experiments as a measure of differential cognitive and emotional specialization of the cerebral hemispheres. Visual stimuli were presented via the visual half-field technique in all three experiments. Slides with different contents were flashed for 200 msec on each trial either to the left or right of a center LED fixation point. The LED went on 5 seconds prior to slide onset. HR changes were scored as second-by-second deviations during 10 seconds after LED onset from pre-LED base line. In the first experiment it was hypothesized that emotionally relevant stimuli initially projected to only the right hemisphere would result in more anticipatory acceleration than when the same stimulus was initially projected to the left hemisphere. A picture of a snake and of a geometric figure were repeatedly briefly flashed to the right of the LED for half of the subjects, and to the left for the other half. There were 25 trials with an intertriai interval of 25–40 seconds. Results showed significant effects of deceleration as a function of the slide stimulus in all groups on seconds 5, 6, or 7 after onset of the center LED. Furthermore, an anticipatory acceleration was observed during the first trial-block on seconds 3 and 4 in the right hemisphere groups only with no differences between the neutral and emotional stimuli. In Experiments 2 and 3, a letter-string of six letters and a complex symmetric pattern were used as stimuli. These stimuli were chosen because previous research has clearly implicated the hemispheres to be differentially specialized in their ability to process verbal and visuo-spatial stimuli. The set-up was identical to Experiment 1, with the exception that differences in response to the two types of stimuli were evaluated on a within-subjects basis. The results from Experiments 2 and 3 showed stimulus-related deceleration, peaking on seconds 5–7 in all groups and an anticipatory acceleration peaking on seconds 3 and 4 in the right hemisphere groups, with decelerations during the corresponding seconds in the left hemisphere groups. The results are discussed in relation to recent findings by Walker and Sandman (1982) about the possibility of hemispheric specialization in psychologic influences on heart rate changes in response to environmental demands.     

Rorty's critique of foundationalism

Summary and conclusion Rorty's critique concentrates on one aspect of foundationalism: the claim that nonpropositional sensory awareness serves as the basis for propositional justification. This claim is an essential component of classical foundationalism, though not necessarily of the more moderate versions of foundationalism that have been proposed. Thus even if it were a successful critique it would tell against only one type of foundationalism. But nothing in Rorty's argument provides any reason to doubt the plausibility of a classical foundationalist explanation of why sensory awareness justifies ordinary nonbasic propositions. Even classical foundationalism, then, remains untouched by Rorty's critique.     

Retrospective Frequency Formats Promote Consistent Experience‐Based Bayesian Judgments

On the basis of their experiences with pregnant patients in their practice, obstetrician/gynecologists estimated the posterior probability of Down syndrome given a positive screening result. They also estimated the base rate of Down syndrome in their practice, along with the hit and false alarm rates for the screening test; for each subject, these numbers were combined to calculate a posterior probability to which the initial estimated posterior probability could be compared. Physicians gave highly consistent estimates when asked to think about their past experiences in terms of event frequencies. However, those told to respond using single event probabilities or to use past experiences to predict prospective frequencies gave inconsistent Bayesian estimates. Thus, when making Bayesian judgments based on real life experience, natural frequency formats only lead to better judgments, compared with single event probability formats, if people think retrospectively, not when using past experiences to make prospective predictions. Copyright © 2011 John Wiley & Sons, Ltd.     

Erziehungsfähigkeit in familienrechtlichen Begutachtungen

Parental competence describes the multidimensional ability of parents to take responsibility for their children and to bring them up. There is a multitude of criteria and guidelines for the assessment of parental competence in the context of family court procedures, when a child’s well-being is at risk or in the case of divorce and separation. However, little is known about what forensic experts in Germany understand by the term parental competence. In a nationwide study  600 forensic experts were questioned about the contents and their methods of assessment concerning parental competence. Of the 104 participating psychologists and doctors (response rate 17.3 %) 90 % follow a schema while assessing parental competence and include the factors interaction and communication skills, care and nurturing, relationship skills, attachment capabilities, teaching rules and complying with them, and the ability to foster a child. While 99 % conduct a talk with the mother, 98 % conduct at least one talk with the father; 27 % talk to both parents together, 94% talk to the child systematically, 84 % use free play and 78 % combine playing and talking. The most frequently mentioned third persons include social workers, new partners, nursery school teachers and child protective services. Approximately 77 % use standardized tests. Although the study revealed a large heterogeneity in the procedures used by forensic experts, there is more accordance concerning the understanding of the term parental competence and the assessment procedure. Possibilities to assess parental competence in more general and standardized terms are discussed.     

Minding the gap: spatial perseveration error in dogs

We investigated a combination of perseveration and detour behaviour in 50 domestic dogs (Canis familiaris). They were required to make a detour through a gap at one end of a straight barrier in order to reach a target. After one, two, three or four repeats, the gap was moved to the opposite end of the barrier, and the detour behaviour of the dogs was recorded. Although the dogs could solve simple detour tasks (80% correct in the first trial), they committed a perseveration error of following the previously learned route despite the clearly visible change in the location of the gap. This ‘misbehaviour’ occurred in 29 of 30 dogs after only two learning trials. They never reached a 100% correct performance level again even after four runs through the second gap location. The results suggest that dogs are reluctant to unlearn acquired spatial motor responses and reinforced navigation, which has important implications for experimental design, everyday dog training and our understanding of their mental capacities.     

Conflicts between on-task and off-task behaviors in the classroom: the influences of parental monitoring, peer value orientations, students’ goals, and their value orientations

Students in class are sometimes torn between following the lesson and engaging in off-task behavior. In this paper, instead of classifying it as a form of deviant behavior, off-task behavior is reconstructed as a manifestation of students multiple motivations in the classroom. The study examines whether parental monitoring, peer value orientations, students’ personal goals, and their value orientations determine students’ motivational interference in these conflict situations. Participants were 348 students (mean age 15.24) from 16 classes of four high schools. A self-report questionnaire was used that combined a qualitative assessment of personal goals with a quantitative approach. Qualitative answers were coded and data was analyzed in a series of hierarchical linear models. As hypothesized, relationships between motivational interference and parental monitoring, peer achievement and well-being value orientations, students’ school- and leisure-related goals, as well as students’ achievement and well-being value orientations were demonstrated. Students’ own value orientations emerged to be the strongest predictor of motivational interference and mediated between parental monitoring and motivational interference. The results suggest that teachers should help students to reconcile their multiple values and goals in the classroom.