Lump detection in simulated human breasts

Sixteen observers palpated silicone models of human breasts containing lumps 1.6-12.1 mm in diameter. Detectability depended on the size of the lump, producing a systematic psychometric function. In eight observers who participated in three or more sessions, performance improved with practice, with most improvement occurring within one or two 26-trial sessions. Three-week retention measures disclosed no appreciable decrease in performance, but a significant correlation was found between the number of lumps detected and duration of trial (p < .01). There was no difference in performance between four observers who used their preferred hands and four observers who used their nonpreferred hands. These data establish that examination of breast models for the detection of lumps simulating cancer is a task amenable to experimental analysis.     

Wahrscheinlichkeit und Erfahrung

Ohne Zusammenfassung     

Dialectical Behavior Therapy and Motivational Interviewing: Conceptual Convergence,Compatibility, and Strategies for Integration

Dialectical behavior therapy (DBT) and motivational interviewing (MI) are two widely used and efficacious psychosocial interventions. An immense and growing number of studies examine DBT, MI, or adaptations of these approaches across diverse treatment contexts and across various clinical populations. Because DBT and MI are in high demand, it is probable that trainees and established practitioners will encounter one or both treatments over the course of their careers. Although MI and DBT initially evolved in distinct contexts for different populations, these approaches share a number of common fundamental principles. Each provides distinct and complementary strategies for enhancing clients’ motivation and ability to change. For some, an integrative or sequenced application of MI and DBT may enhance client care. The present article highlights areas of divergence, convergence, and opportunities for integration, and offers practical tips for applying DBT and MI in conjunction.     

Negative mood,depressive symptoms,and major depression after smoking cessation treatment in smokers with a history of major depressive disorder

Negative mood, depressive symptoms, and major depressive episodes (MDEs) were examined in 179 smokers with a history of major depression in a trial comparing standard smoking cessation treatment to treatment incorporating cognitive-behavioral therapy for depression (CBT-D). Early lapses were associated with relatively large increases in negative mood on quit date. Mood improved in the 2 weeks after quit date among those returning to regular smoking but not among those smoking moderately. Continuous abstinence was associated with short- and long-term reductions in depressive symptoms. MDE incidence during follow-up was 15.3% and was not associated with abstinence. Unexpected was that CBT-D was associated with greater negative mood and depressive symptoms and increased MDE risk. Results suggest complex bidirectional associations between affect and smoking outcomes.     

The Good's Magnetism and Ethical Realism

People support ethical antirealism with various arguments. Gilbert Harman thinks if a property of goodness existed, it would have detectable effects on objects that have it. However, Harman reasons, the good has no such detectable effects. Internalists think if good objects had some goodness property, that property would bond to desire and action in a way inconsistent with ethical realism. I defend ethical realism from the two arguments. I explain how good can both name a property and how objects with that property might dispose people to seek them. This explanation of the good's magnetism provides a reply to Harman.     

Memory retrieval by 18--30-month-olds: age-related changes in representational flexibility

Deferred imitation was used to trace changes in memory retrieval by 18-30-month-olds. In all experiments, an adult demonstrated 2 sets of actions using 2 different sets of stimuli. In Experiments 1A and 1B, independent groups of infants were tested immediately or after a 24-hr delay. Each infant was tested with 1 set of stimuli from the original demonstration and 1 set of stimuli that was different. Recall of the target actions when tested with different stimuli increased as a function of age, particularly after a delay. In Experiment 2, infants were provided with a unique verbal label for the stimuli during the demonstration and the test. The verbal label facilitated performance by 24-month-olds tested with different stimuli but had no effect on performance by 18-month-olds. One hallmark of memory development appears to be an age-related increase in the range of effective retrieval cues for a particular memory.