“100% of anything looks good”: The appeal of one hundred percent

People overweight certainty, even when certainty is only an illusion. A vaccine that was described as 100% effective against 70% of disease targets was preferred to one described as 70% effective against 100% of disease targets (Studies 1 and 2). The appeal of 100% extends beyond the probability attribute. In Study 2, participants preferred both of the vaccines above to normatively equivalent vaccines that were less than 100% effective toward fewer than 100% of targets. In Study 3, participants preferred a 100% discount on a cup of coffee every 10 days to other more frequent, but lower amount, discounts. This preference evaporated, however, when savings were framed as points rather than as percentage discounts. We propose that people view 100% as a salient reference point and overweight it in those domains where it cannot be exceeded (e.g., probability, discount); the overweighting is weaker in domains where 100% can be exceeded (e.g., target range, points).     

Assessment of Discipline Styles Among Parents of Preschool Through School-Age Children

The Parenting Scale (D.S. Arnold, S.G. O'Leary, L.S. Wolff, & M.M. Acker, 1993) is a self-report measure of parenting practices that has demonstrated sound psychometric properties when used with the parents of young children. However, less is known about the use of this measure with parents of older children. This study was conducted to examine the psychometric properties and factor structure of the Parenting Scale in a normative sample of parents with children 2–12 years old. Findings reveal that the psychometric properties remain strong among the parents of elementary school children, with minimal differences in scores as a function of children's age. However, the data suggest that the factor structure may differ from that proposed by the authors. Although statistically significant correlations with ADHD symptoms were revealed, the magnitude of these correlations was relatively small. Suggestions for future research and clinical use of this scale are discussed.     

The personal and marital adjustment of parents as related to observed child deviance and parenting behaviors

The purpose of this study was to document the relationship of parents' personal and marital adjustment to their own behavior as parents and the behavior of their children. A total of 31 families who had been referred for behavioral counseling regarding their male child's behavior problems were given a diagnostic battery which included home observations as well as administration to parents of the Minnesota Multiphasic Personality Inventory (MMPI) and the LockeWallace Marital Adjustment Test. Results revealed consistent negative relationships between marital satisfaction and the observed level of child deviance. Similarly, there were consistent negative relationships between marital satisfaction and the level of observed “negativeness” to the child. Analyses using the MMPI indicated that a large number of the fathers ' MMPI scales were related to child deviance, but this finding was not replicated for mothers. Several MMPI scales were related to marital satisfaction for both parents. These results are discussed in terms of their implications for the assessment and treatment of families with a problem child.     

Patterns of emotional availability between mothers and young children: Associations with risk factors for borderline personality disorder

Emotional availability (EA) characterizes a warm, close relationship between caregiver and child. We compared patterns (clusters) of EA on risk factors, including those for borderline personality disorder (BPD). We sampled 70 children aged 4 to 7 years from low socio‐economic backgrounds: 51% of whose mothers had BPD. We coded filmed interactions for EA: mothers' sensitivity, structuring, non‐intrusiveness, non‐hostility, and children's responsiveness to, and involvement of, mothers. We additionally coded children's over‐responsiveness and over‐involvement. Using person‐centred analyses, we identified four clusters: high functioning, low functioning, asynchronous (mothers above average on two of four dimensions and children below), and below average. Mothers in the low‐functioning cluster had lower income, less social support, more of the borderline feature of negative relationships, and more depression than did mothers in the high‐functioning cluster. The children in the low‐functioning group had more risk factors for BPD (physical abuse, neglect, and separation from, or loss of caregivers, and negative narrative representations of the mother–child relationship in their stories) than did children in the high‐functioning group. The asynchronous group included older girls who were over‐responsive and over‐involving with their mothers in an apparent role reversal. Interventions targeting emotional availability may provide a buffer for children facing cumulative risks and help prevent psychopathology.

Highlights

• This paper investigated how mother‐child emotional availability (warmth and closeness) relates to risk factors for borderline personality disorder, including mother‐child role reversal.
• In filmed mother‐child interactions, low emotional availability was associated with risk for borderline personality disorder and role reversal was more likely for older girls.
• Findings support the cumulative risk hypothesis and may inform interventions to improve mother‐child emotional availability to prevent the development of psychopathology.

     

Extinction of appetitive learning is disrupted by cycloheximide and propranolol in the sand maze in rats

The present study investigated whether memory for extinction in an appetitive task (the sand maze) could be attenuated by administration of cycloheximide (protein synthesis inhibitor) or propranolol (β-adrenergic receptor antagonist). Ninety-day-old male Long-Evans rats were trained to retrieve a sweet cereal reinforcer from an open container in the sand maze. One day following this non-spatial training, rats received three extinction trials in which they were placed in the maze with the reinforcer present, but unattainable. Thirty minutes prior to the first extinction trial, rats received an intraperitoneal injection of cycloheximide (1mg/kg), propranolol (25mg/kg), or vehicle (1mg/kg distilled water). Twenty-four hours later, rats were tested in the sand maze with the reinforcer again available. Results from the test trial showed that both cycloheximide and propranolol groups found the reinforcer more quickly than controls. Two weeks later, rats were trained on a spatial version of the sand maze in which they had to search for a buried reinforcer using extramaze cues. Cycloheximide and propranolol groups learned this task significantly faster than the control group, demonstrating the long-lasting effect of cycloheximide and propranolol on the blocking of memory for extinction.     

Nudge to Health: Harnessing Decision Research to Promote Health Behavior

We review selected literature that examines how biases in decision making can be utilized to encourage individual health behavior, such as vaccination, and promote policy decisions, such as resource allocation. These studies use simple interventions to nudge people towards more optimal health decisions without restricting decision‐makers’ freedom of choice. Examples include framing effects, defaults, implementation intentions, position effects, social norm, incentives, and emotions. We suggest that nudges are an effective way to promote healthy behavior.     

Parafoveal processing of prefixed words during eye fixations in reading: evidence against morphological influences on parafoveal preprocessing

Two eye movement experiments were conducted to investigate whether the morphological constituents of a prefixed word influenced early word processing when English was read. Participants read sentences containing free-stem, bound-stem, or pseudoprefixed words, and the availability of the prefixed word morphemes in the parafovea was manipulated. Although preview benefit was greatest for the entire word, there was evidence that subsequent word processing was facilitated in both the prefix-only and the stem-only conditions. This effect was not influenced by word type. There was no evidence that morphological preprocessing occurred when morphological information was available in the parafovea. In addition, reading times for the target word did not differ for the different word types. Thus, there was no evidence to suggest that morphological constituents influence early word processing during reading. It is possible that morphological effects tend to be obscured when examined within a sentence context (although this phenomenon may be specific to English).     

Measuring Change in OCD: Sensitivity of the Obsessive-Compulsive Inventory-Revised

This study examined the sensitivity to change and specificity of response of the Obsessive-Compulsive Inventory-Revised (OCI-R), an 18-item self-report measure of obsessive-compulsive disorder (OCD) severity. Seventy-seven OCD patients received cognitive-behavioral therapy incorporating exposure and response prevention (ERP). Change from pre- to posttest on the OCI-R was compared to changes as assessed by the Yale-Brown Obsessive Compulsive Scale (Y-BOCS) and other measures of OCD and related symptoms. Results suggest the OCI-R is sensitive to treatment effects and that pre- to posttest change on this instrument reflects improvement in OCD and related symptoms of depression, anxiety, and global functioning. The OCI-R was not sensitive to improvement in patients’ insight into the senselessness of their OCD symptoms. The OCI-R appears suitable for use in clinical settings and naturalistic outcome studies where time and resources do not permit administration of lengthy symptom interviews.     

Assessment of Trichotillomania: A Psychometric Evaluation of Hair-Pulling Scales

Currently there is no gold standard treatment outcome measure for trichotillomania (TTM), a disorder characterized by repetitive hair pulling resulting in noticeable hair loss. The goal of the current study was to evaluate the psychometric properties of TTM measures of differing assessment methods: self-report, clinician-rated summary scales, and clinician-rated global severity scales. Data collected from 28 patients with TTM indicated mixed psychometric properties for current scales. Internal consistency was strong for self-report but not clinician-rated summary scales. One clinician-rated summary scale total and subjective ratings of hair loss demonstrated good interrater agreement. Although convergent validity was good within measurement type, self-report did not correlate with clinician-rated global severity scales, perhaps because of absence of hair loss severity assessment on the self-report measure. A multimethod assessment including one of each type of measure reviewed in this paper, along with self-monitoring and measures of hair loss severity, is recommended for a comprehensive best practice approach to TTM assessment.     

The sectored foraging field: a novel design to quantify spatial strategies, learning, memory, and emotion

Although Norway rats are naturally gregarious, males typically live alone at some point during adulthood. Different social ecologies often require different learning strategies and also modulate response to stressors and gonadal development. To measure effects of the social environment on the interaction between cognition and emotion during aging, we focused on a natural learning context and devised the sectored foraging field, a progressively difficult spatial navigation task. Here, we describe how this apparatus and protocol permits multiple learning strategies in a minimally stressful environment, enabling finely graded analyses of cognition and emotionality. Male Sprague-Dawley rats living alone throughout adulthood adopted a sex-typic discernible spatial strategy. In contrast, males housed in group contexts utilized an algorithmic kinesthetic strategy, repeating the same motor action until they found food. Removal of food and distal, but not local cues, elicited anxious alertness, particularly in group-housed males. Cognitive performance of group-housed rats subsequent to food and cue removal was significantly impaired, yet enhanced in isolates.