More efficient rejection of happy than of angry face distractors in visual search

In the present study, we examined whether the detection advantage for negative-face targets in crowds of positive-face distractors over positive-face targets in crowds of negative faces can be explained by differentially efficient distractor rejection. Search Condition A demonstrated more efficient distractor rejection with negative-face targets in positive-face crowds than vice versa. Search Condition B showed that target identity alone is not sufficient to account for this effect, because there was no difference in processing efficiency for positive- and negative-face targets within neutral crowds. Search Condition C showed differentially efficient processing with neutral-face targets among positive- or negative-face distractors. These results were obtained with both a within-participants (Experiment 1) and a between-participants (Experiment 2) design. The pattern of results is consistent with the assumption that efficient rejection of positive (more homogenous) distractors is an important determinant of performance in search among (face) distractors.     

Top-down contingent capture by color: evidence from RT distribution analyses in a manual choice reaction task

According to the contingent capture hypothesis, observers can specify their control settings in advance of the target’s presentation to quickly attend to relevant target colors. Two predictions were derived from this hypothesis and tested in a manual choice response task. First, contingent capture by color was expected: capture of spatial attention by a better-matching color stimulus should be stronger than capture by a less-matching color stimulus. Second, with the control settings specified in advance, the contingent capture by color should commence early after the stimulus onset and should be evident among fast correct responses in an RT distribution. Both predictions are shown to hold true in two experiments. Results are discussed in light of contrasting evidence for saccadic instead of manual responses.     

Attentional capture by an unannounced color singleton depends on expectation discrepancy

Eight experiments examined the conditions under which a color singleton that is presented for the 1st time without prior announcement captures attention. The main hypothesis is that an unannounced singleton captures attention to the extent that it deviates from expectations. This hypothesis was tested within a visual-search paradigm in which set-size effects were used to infer attentional capture. The results showed that attentional capture by an unannounced color singleton was due to a mismatch with expectations concerning the color of the object and not due to its being a singleton. Thus, the results imply that theories of attention have to consider expectation discrepancy as a determinant of attention shifts.     

Visual search for schematic affective faces: Stability and variability of search slopes with different instances

The threat-advantage hypothesis that threatening or negative faces can be discriminated preattentively has often been tested in the visual search paradigm with schematic stimuli. The results have been heterogeneous, suggesting that the choice of particular stimuli have profound effects on search efficiency. Because this conclusion is hampered by differences in experimental procedure, I selected examples from past literature and presented replicas of stimulus pairs (schematic positive and negative faces) in a within-participants design. Although there was a consistent advantage for angry-face targets, search efficiency varied between 8 and 35 ms/item, yielding no clear evidence for the threat-advantage hypothesis. Furthermore, search efficiency for negative- and positive-face targets was highly correlated over stimulus pairs, which implies that whatever complicates the search for the negative face of a pair also complicates the search for the positive face. This results pattern argues against the hypothesised preattentive detector.     

Preattentive face processing: What do visual search experiments with schematic faces tell us?

In recent research, several experiments have tested a preattentive threat-advantage hypothesis that threatening or negative faces can be discriminated preattentively, by using the visual search paradigm. However, supporting evidence is nonuniform, giving rise to the suspicion that stimulus factors rather than the stimuli's category of facial threat versus friendliness are responsible for sporadic demonstrations of a threat advantage. However, it is also possible that differences in experimental procedure contribute to the heterogeneous results. To test this possibility I selected examples from the past literature and presented them within the same constant experimental setting. I found a consistent advantage for negative face targets among positive face distractors with all stimulus pairs. Search slopes, however, mostly revealed inefficient search, questioning the preattentive discrimination of facial affect.     

A new occupational self-efficacy scale and its relation to personality constructs and organizational variables

Three studies on occupational self-efficacy are presented. In the first study, a scale of occupational self-efficacy is developed and set in relation to several personality constructs (general self-efficacy, self-esteem, internal control beliefs, and neuroticism). The correlations found are in the expected direction and of the expected size. In a second and third study, results on the relation to task demands, leader-member exchange (that is quality of exchange between a leader and his/her subordinates), job satisfaction, and to commitment (third study) are reported and were all found to be positive and significant. In addition, occupational selfefficacy can be shown to have some incremental validity in predicting job satisfaction beyond core self-evaluation constructs. In general, occupational selfefficacy can be recommended as a reliable, one-dimensional construct. Its relations to personality constructs and organizational variables show acceptable construct and criterion validity. Implications for practical use of the instrument are discussed.     

Aus vier mach zwei

Background

The diagnostic and statistical manual of mental disorders 5 (DSM-5) includes a revision of the DSM-IV criteria for somatoform disorders. The aim of the current work was to investigate whether (a) patients with DSM-IV diagnoses of somatization disorder, pain disorder and hypochondriasis and (b) whether patients categorized as having the DSM-5 somatic symptom disorder and illness anxiety disorder differ with respect to illness anxiety and cognition regarding somatic symptoms.

Material and methods

The data from 269 inpatients from the psychosomatic clinic Schön Klinik Bad Bramstedt were used. Somatoform disorders were diagnosed using the German version of the structured clinical interview for DSM-IV (SCID).

Results

Patients with a DSM-IV diagnosis of hypochondriasis differed in illness anxiety and catastrophizing interpretation of somatic symptoms compared to patients with other somatoform disorders. Patients with illness anxiety disorder differed in the catastrophizing interpretation of physical symptoms, autonomic sensations, bodily weakness and intolerance of physical complaints compared to patients with somatic symptom disorder.

Conclusion

The present results indicate that illness anxiety and a catastrophizing interpretation of somatic symptoms play a fundamental role in patients with somatoform disorders. Therefore, psychotherapy should address illness anxiety and health-related concerns in all patients with somatoform disorders.     

How people interpret conditionals: shifts toward the conditional event

We investigated how people interpret conditionals and how stable their interpretation is over a long series of trials. Participants were shown the colored patterns on each side of a 6-sided die and were asked how sure they were that a conditional holds of the side landing upward when the die is randomly thrown. Participants were presented with 71 trials consisting of all combinations of binary dimensions of shape (e.g., circles and squares) and color (e.g., blue and red) painted onto the sides of each die. In 2 experiments (N? = 66, N? = 65), the conditional event was the dominant interpretation, followed by conjunction, and material conditional responses were negligible. In both experiments, the percentage of participants giving a conditional event response increased from around 40% at the beginning of the task to nearly 80% at the end, with most participants shifting from a conjunction interpretation. The shift was moderated by the order of shape and color in each conditional's antecedent and consequent: Participants were more likely to shift if the antecedent referred to a color. In Experiment 2 we collected response times: Conditional event interpretations took longer to process than conjunction interpretations (mean difference = 500 ms). We discuss implications of our results for mental models theory and probabilistic theories of reasoning.