Jumping to conclusions in the less-delusion-prone? Further evidence from a more reliable beads task

BackgroundA single meta-analysis has found that healthy people with higher delusion-proneness tend to gather less information (i.e., make fewer draws to decision, or DTD) on the beads task, although the findings of contributing studies were mixed, and the pooled effect size was small. However, using a new and more reliable “distractor sequences” beads task, we recently found a positive relationship between delusion-proneness and DTD in a healthy sample. In the current study, we re-tested this relationship in a new sample, and tested the possibility that the relationship is driven by participant’s ability to understand and use odds or likelihood information (“odds literacy”).MethodsHealthy participants (N = 167) completed the distractor sequences beads task, the Peters Delusions Inventory (PDI) which measures delusion-proneness, a measure of odds literacy, and the Depression, Anxiety, and Stress scale.ResultsPDI and DTD were positively correlated, and comparing PDI quartiles on DTD confirmed a statistically significant trend of increasing DTD with PDI quartile. Odds literacy was positively rather than negatively associated with both DTD and PDI. Anxiety was positively correlated with PDI and DTD.ConclusionsWe replicated our earlier finding that DTD and delusion-proneness were positively related in a non-clinical sample, but found that increased odds-literacy did not drive lower PDI and DTD, and hence did not explain their covariance. It is possible however that anxiety and co-occurring risk aversion drive increased delusion-proneness and information-gathering, potentially accounting for the positive relationship between PDI and DTD.     

Mothers' representations of their relationships with their toddlers: links to adult attachment and observed mothering.

Mothers (N = 125) and their firstborn sons were studied over an 11-month period to examine relations between mothers' representations of their relationships with their children (measured at 15 months by using the Parent Development Interview [PDI]), adult representations of attachment (measured at 12 months by using the Adult Attachment Interview [AAI]), and observed mothering (measured at 15 and 21 months). Results indicate (a) that mothers classified as autonomous on the AAI scored highest on the joy-pleasure/coherence dimension of the PDI and mothers classified as dismissing on the AAI scored highest on the anger dimension of the PDI and (b) that mothers scoring higher on the joy-pleasure/coherence dimension of the PDI engaged in less negative and more positive mothering.     

Developmental outcome of drug-exposed children through 30 months: a comparison of Bayley and Bayley-II

This study examined the effects of the Bayley Scales of Infant Development (BSID) version on developmental outcomes among drug-exposed children, some of whom received an intervention. Developmental outcome was evaluated with the BSID at 12 and 18 months and with the BSID-II at 24 and 30 months. In the repeated measures analyses, children scored higher on the BSID Mental Developmental Index (MDI; p < .01) and Psychomotor Developmental Index (PDI; p < .01) than on the BSID-II MDI and PDI. Version x Time (p < .01) and Version x Group (p < .01) interactions were also found for the MDI but not the PDI. PDI scores decreased on both the BSID and the BSID-II (p < .01). Over the first 2 years postpartum, mean MDI and PDI scores decreased among these high-risk, drug-exposed children.     

Subclinical delusional ideation and appreciation of sample size and heterogeneity in statistical judgment

Previous studies demonstrate that people high in delusional ideation exhibit a data‐gathering bias on inductive reasoning tasks. The current study set out to investigate the factors that may underpin such a bias by examining healthy individuals, classified as either high or low scorers on the Peters et al. Delusions Inventory (PDI). More specifically, whether high PDI scorers have a relatively poor appreciation of sample size and heterogeneity when making statistical judgments. In Expt 1, high PDI scorers made higher probability estimates when generalizing from a sample of 1 with regard to the heterogeneous human property of obesity. In Expt 2, this effect was replicated and was also observed in relation to the heterogeneous property of aggression. The findings suggest that delusion‐prone individuals are less appreciative of the importance of sample size when making statistical judgments about heterogeneous properties; this may underpin the data gathering bias observed in previous studies. There was some support for the hypothesis that threatening material would exacerbate high PDI scorers' indifference to sample size.     

Screening for psychopathology in groups of black and white prison inmates by means of the MMPI

Of 225 male offenders who were administered both the MMPI and a structured diagnostic interview, the Psychiatric Diagnostic Interview (PDI), 51 (25 blacks, 26 whites) earned highly elevated MMPI profiles (at least one clinical scale greater than or equal to T score of 90) and 46 (26 blacks, 20 whites) achieved profiles that were essentially within normal limits (all clinical scales less than T score of 70). It was noted that the concordance between the MMPI and the total number of PDI syndromes reported by inmates was significantly greater in the white group (classification accuracy = 96%) relative to the black group (classification accuracy = 71%). However, both the black and white hit rates were found to significantly improved upon chance.     

Comparing the Personality Disorder Interview for DSM–IV (PDI–IV) and SCID–II Borderline Personality Disorder Scales: An Item–Response Theory Analysis

One-hundred sixty-nine psychiatric outpatients and 171undergraduate students were assessed with the Personality Disorder Interview–IV (PDI–IV; Widiger, Mangine, Corbitt, Ellis, & Thomas, 1995) and the Structured Clinical Interview for DSM–IV Axis II disorders (SCID–II; First, Gibbon, Spitzer, Williams, & Benjamin, 1997) for borderline personality disorder (BPD). Eighty individuals met PDI–IV BPD criteria, whereas 34 met SCID–II BPD criteria. Dimensional ratings of both measures were highly intercorrelated (rs = .78, .75), and item-level interrater reliability fell in the good to excellent range. An item–response theory analysis was performed to investigate whether properties of the items from each interview could help understand these differences. The limited agreement seemed to be explained by differences in the response options across the two interviews. We found that suicidal behavior was among the most discriminating criteria on both instruments, whereas dissociation and difficulty controlling anger had the 2 lowest alpha parameter values. Finally, those meeting BPD criteria on both interviews had higher levels of anxiety, depression, and more impairments in object relations than those meeting criteria on just the PDI–IV. These findings suggest that the choice of measure has a notable effect on the obtained diagnostic prevalence and the level of BPD severity that is detected.     

Screening for Psychopathology in Groups of Black and White Prison Inmates by Means of the MMPI

Of 225 male offenders who were administered both the MMPI and a structured diagnostic interview, the Psychiatric Diagnostic Interview (PDI), 51 (25 blacks, 26 whites) earned highly elevated MMPI profiles (at least one clinical scale<T score of 90) and 46 (26 blacks, 20 whites) achieved profiles that were essentially within normal limits (all clinical scales < T score of 70). It was noted that the concordance between the MMPI and the total number of PDI syndromes reported by inmates was significantly greater in the white group (classification accuracy = 96%) relative to the black group (classification accuracy = 71%). However, both the black and white hit rates were found to significantly improved upon chance.     

Influence of breastfeeding and iron status on mental and psychomotor development during the first year of life.

Breastfeeding (BF) confers numerous benefits on the developing infant in both the short and the long term including psychological development, but there are multiple other factors that must be taken into account when these relationships are studied. To analyse how breastfeeding during the first 4 months of life affects infant mental and psychomotor development (MPD) at 6 and 12 months in a group of healthy infants from a Mediterranean Spanish city considering many important potential confounds. This is a longitudinal study conducted on infants from birth until the age of 12 months. A total of 154 healthy infants were evaluated by Paediatric Unit of Sant Joan University Hospital in Reus, Spain. Type of feeding, clinical history, anthropometry, iron status and mental and psychomotor development were assessed and analysed. At 4 months, 24% of infants received BF and 26% received mixed feeding (MF). Multiple Linear Regression models were applied adjusting for potential prenatal, perinatal and postnatal confounds showing that infants who received BF for at least four months presented higher psychomotor development index (PDI) at 6 and at 12 months of age. Also, gestational age and BMI at 6 m were associated positively with PDI at 6 m, and haemoglobin levels at 12 m and birth height were associated with PDI and MDI at 12 m (respectively).In conclusion, after the adjustment of important potential confounds, BF during at least four months and adequate infant iron status are related to better psychomotor development during the first year. No associations were found between BF and mental development.     

Subclinical delusional ideation and a self‐reference bias in everyday reasoning

Previous studies (e.g. Moller & Husby, 2000 ; Blackwood et al., 2004 ) have revealed that delusional thinking is accompanied by an exaggerated focus upon the self and upon stimuli that are perceived to be related to the self. The objective was to examine whether those high in subclinical delusional ideation exhibit a heightened tendency for self‐reference. Using a mixed design, healthy individuals, classified into high‐ and low‐scoring groups on the Peters et al. Delusions Inventory ( Peters, Day, & Garety, 1996 ), were compared on everyday reasoning tasks across three experiments. High‐PDI scorers, in contrast to the low‐PDI group, rated self‐referent objections to everyday arguments as stronger than other‐referent objections and formulated more self‐referent assertion‐based objections to everyday arguments. The findings support the notion that subclinical delusional ideation is linked to a self‐reference bias, which is evident in the sort of everyday thinking that people engage in when forming or evaluating their beliefs and which may contribute to delusion formation.     

Prediction of Posttraumatic Stress Disorder From Peritraumatic Dissociation and Distress Among Men and Women Victims of Violent Crimes

This prospective study evaluated the main and interactive effects of peritraumatic reactions with gender on posttraumatic stress disorder (PTSD) onset, independently of known risk factors. Further, 111 adult victims of violent crime completed the Structured Clinical Interview, the Modified PTSD Symptom Scale, the Peritraumatic Dissociative Experience Questionnaire, and the Peritraumatic Distress Inventory. Hierarchical regressions and chi-square tests were conducted for continuous and categorical measures of PTSD. Extremely elevated scores of peritraumatic dissociation (PD) and peritraumatic distress (PDI) were obtained for both sexes. Greater PDI and PD were related to more PTSD symptoms. No significant interaction effects with gender emerged. These results remained when acute stress disorder was controlled for. Analyses on categorical data produced similar results. Victims of violent crimes recall severe peritraumatic reactions. The more severe these are, the more likely they are to develop significant PTSD symptomatology in the months that follow.     

Inwardizing Rilke's dog of ‘divine inseeing’ into itself

The article explores a text of the poet R.M. Rilke in the manner of Psychology as the Discipline of Interiority (PDI). PDI, developed mainly in the writings of Wolfgang Giegerich, refers to the ‘speculative turn’ within analytical psychology. The speculative turn involves an interpretative stance that strictly adheres to Jung's seminal insight into psychology's lack of an empirically‐objective, Archimedean vantage‐point outside of or beyond the psyche. The paper aims to demonstrate that, for all its beauty, the account of interiority that is celebrated in the passage from Rilke is self‐contradictory. This is due to its being naively conceived as the undialectical opposite of an external viewpoint that it is unable to overcome. Whereas Rilke merely imagines interiority by means of the visual image of his getting inside a dog as one passes by, the interpretative approach taken in this article thinks interiority by reflecting Rilke's text into itself in the speculative manner that is provided for and required by Jung's insight into psychology's lack of an Archimedean vantage‐point. If we interpret the text in this way, an understanding of interiority that is truly in accord with its concept is opened up and a main aspect of psychology as the discipline of interiority is performatively demonstrated.     

Self-report measure of parental reflective functioning: A study of reliability and validity across three samples of varying clinical risk

The Parental Reflective Functioning Questionnaire (PRFQ) provides an efficient way to measure a parent's capacity to recognize their child's mental states and to understand the relationship between underlying mental states and behavior. To date, limited work evaluates its psychometric properties beyond initial validation studies. Here we examined the reliability and validity of the PRFQ in three samples of varying clinical risk (e.g., community sample, previous mental health diagnosis, substance use disorder diagnosis). Across samples, the majority (e.g., 75%–78%) of mothers identified as White; all mothers were from the USA. We compared the PRFQ to task-based measures of mentalization, the Parent Development Interview (PDI), and measures of the parent-child relationship. The PRFQ was a reliable measure across samples, and it was associated in theoretically consistent ways with task-based measures of mentalization. Parental RF across the PDI and PRFQ were not highly correlated in a sample of mothers with substance use disorders. Existing RF measures may be tapping into a different component of the broader construct of parental reflective functioning (PRF). The PRFQ was further validated by demonstrating relationships with parent-report measures of the parent-child relationship. Taken together, these findings provide additional support for the reliability and validity of the PRFQ.     

Comparison of Griffiths-II and Bayley-II tests for the developmental assessment of high-risk infants

IntroductionTwo important risk factors for abnormal neurodevelopment are preterm birth and neonatal hypoxic ischemic encephalopathy. The new revisions of Griffiths Mental Development Scale (Griffiths-II, [1996]) and the Bayley Scales of Infant Development (BSID-II, [1993]) are two of the most frequently used developmental diagnostics tests. The Griffiths-II is divided into five subscales and a global development quotient (QD), and the BSID-II is divided into two scales, the Mental scale (MDI) and the Psychomotor scale (PDI).The main objective of this research was to establish the extent to which developmental diagnoses obtained using the new revisions of these two tests are comparable for a given child.Material and methodsRetrospective study of 18-months-old high-risk children examined with both tests in the follow-up Unit of the Clinic of Neonatology of our tertiary care university Hospital between 2011 and 2012. To determine the concurrent validity of the two tests paired t-tests and Pearson product-moment correlation coefficients were computed. Using the BSID-II as a gold standard, the performance of the Griffiths-II was analyzed with receiver operating curves.Results61 patients (80.3% preterm, 14.7% neonatal asphyxia) were examined. For the BSID-II the MDI mean was 96.21 (range 67–133) and the PDI mean was 87.72 (range 49–114). For the Griffiths-II, the QD mean was 96.95 (range 60–124), the locomotors subscale mean was 92.57 (range 49–119). The score of the Griffiths locomotors subscale was significantly higher than the PDI (p < 0.001). Between the Griffiths-II QD and the BSID-II MDI no significant difference was found, and the area under the curve was 0.93, showing good validity. All correlations were high and significant with a Pearson product-moment correlation coefficient >0.8.ConclusionsThe meaning of the results for a given child was the same for the two tests. Two scores were interchangeable, the Griffiths-II QD and the BSID-II MDI.     

Personality variables related to integrity test scores: The role of conscientiousness

Using a broad-based measure of normal personality, we tested the hypothesis that the trait conscientiousness is the best single predictor of scores on two well-researched integrity tests. Data from 180 traditional and nontraditional college students provided clear support for this hypothesis, but also indicated that a number of traits other than conscientiousness were likely to be related to integrity test scores. Scores on all six of the primary scales, and 33 of the 45 homogeneous item clusters (HICs) of the Hogan Personality Inventory were related to scores on the PDI Employment Inventory and/or the Personnel Selection Inventory. Personality variables were better predictors of scores on the PDI Employment inventory, which is a veiled-purpose (also referred to as personality based) test, than of scores on the Personnel Selection Inventory, which measures honesty-related attitudes and includes items calling for direct admissions of misdeeds.We are grateful for the assistance and cooperation of London House Inc., Personnel Decisions Inc., and Hogan Assessment Systems, Inc., and especially to Scott Martin, George Paajanen, and Joyce Hogan.     

Caregiving representations in war conditions: Associations with maternal trauma,mental health,and mother–infant interaction

Risk features in mothers’ caregiving representations remain understudied in dangerous environments where infants most urgently need protective parenting. This pilot study examines the feasibility of a novel coding system for the Parent Development Interview (PDI) interview (ARR, Assessment of Representational Risk) in assessing 50 war-exposed Palestinian mothers’ caregiving representations. First, we explored the content and structure of risks in the representations. Second, we examined associations between the high-risk representations, mothers’ pre- and postnatal exposure to traumatic war events (TWE), depressive and post-traumatic stress disorder (PTSD) symptoms, and self-rated emotional availability (EA) with their 1-year-old infants. Following three dimensions of high-risk caregiving representations were identified: self/dyadic dysregulation, unavailable, and fearful. Mothers’ prenatal depressive symptoms were associated with dysregulating and fearful representations, and their postnatal PTSD with fearful representations. TWE were not associated with the high-risk representations. Moreover, mothers of boys reported more fearful representations, and mothers with financial difficulties reported more unavailable representations. TWE and high-risk representations were not associated with EA. However, qualitative analysis of the representations indicated risks in the mother–infant relationship. Further, older mothers and mothers with postnatal PTSD reported lower EA. Cultural variance in caregiving representations and the use of self-report measures among traumatized mothers are discussed.     

Brief Reviews

WORLDS OF PAIN: LIFE IN THE WORKING CLASS FAMILY. L. B. Rubin.
WOMEN—A PDI REFERENCE WORK, Vol. 1. F. L. Denmark and R. W. Wesner (Eds.).
Worth noting: LOCATING, RECRUITING AND EMPLOYING WOMEN: AN EQUAL OPPORTUNITY APPROACH. C. H. Foxley.
DRUGS, ALCOHOL AND WOMEN: A NATIONAL FORUM SOURCE BOOK. M. Nellis (Ed.).
WOMEN AND CRIME. N. Loring and L. Olson.
NEW LIFE OPTIONS: THE WORKING WOMEN'S RESOURCE BOOK. R. K. Loring and H. A. Otto.     

Metacognitive Therapy Focused on Psychosocial Function in Psychosis

Metacognitive Insight and Reflection Therapy is a manual-based individual psychotherapy aimed at enhancing four metacognitive processes through patient’s personal narratives which may promote recovery by helping individuals suffering from schizophrenia to develop a richer and more integrated sense of self. This study is a single case analysis of the effects of a meta-cognitively oriented CBT on residual psychotic symptoms and functional targets. Outcome measures (PANNS, PDI 21, BAVQ-R, PSP, MAS-A) were collected at two different times: pre-CBT and 1-year. Results showed reductions in the distress, preoccupation and conviction associated with delusions and improvements in metacognitive abilities, social functioning, hopefulness and of the sense of self-confidence to cope with the psychotic symptoms. Adopting a metacognitive perspective during psychotherapy had several benefits: to foster the development of therapeutic alliance, to allow the patient to assess the efficacy and acknowledge the consequences of the different strategies he could use to cope with his symptoms and to question the predominance of his delusions in his life. To conclude, Metacognitive Reflection and Insight Therapy seem particularly adapted to address psychosocial issues, such as social or work functioning.     

Cognitive and motor development in children with vertically transmitted HIV infection

This study was designed to examine mental and motor development in infants with vertically transmitted human immunodeficiency virus (HIV) infection. Early neurodevelopment was examined in 25 young children with HIV infection acquired through vertical transmission. Compared with 25 children born to HIV-positive mothers but not infected with the virus, and after controlling for developmental risk factors, the HIV-infected group showed impairments in mental and motor development. Mental and motor development were assessed using the Bayley Scales of Infant Development. On the mental scale (MDI), the HIV-infected infants obtained significantly lower scores than the uninfected infants. On the performace scale (PDI), the HIV-infected infants obtained significantly lower standard scores than the uninfected infants. CT scan results were available for 20 of the HIV-infected children. CT abnormalities were associated with developmental delays, particularly for motor development. The results point to the importance of early abnormalities in myelination and of subcortical lesions of cognitive and motor development.     

The Personality Disorders Institute/Borderline Personality Disorder Research Foundation randomized control trial for borderline personality disorder: rationale, methods, and patient characteristics

The Personality Disorder Institute/Borderline Personality Disorder Research Foundation randomized control trial (PDI/BPDRF RCT) is a controlled outcome study for borderline personality disorder (BPD), in which 90 participants were randomized to one of three manualized and monitored, active psychosocial treatment conditions. These treatments are: (a) Transference-Focused Psychotherapy (TFP; Clarkin, Yeomans, & Kernberg, 1999), a treatment for BPD based on object-relational and psychoanalytic principles first applied to BPD by Kernberg (1996), notable for its particular emphasis on interpretation of object relations activated in the ongoing therapeutic relationship; (b) Dialectical Behavior Therapy (DBT; Linehan, 1993), a popular treatment for BPD, with evidence of efficacy (Linehan, Armstrong, Suarez, Allmon, & Heard, 1991) that emphasizes a balance between acceptance and change in its combination of cognitive-behavioral and Zen principles; and (c) supportive psychotherapy (Rockland, 1992), another object-relational and psychoanalytically based treatment for BPD which, in contrast to TFP, eschews transference interpretation and places primary emphasis on development of a collaborative engagement with the patient to foster identity development. Patients received medication, if clearly indicated, according to the treatment algorithm developed by Soloff (2000). This article describes the significance and rationale of the study and the overall design, methods, plan of analysis, and demographic characteristics of the recruited sample of patients.