Anorexia Nervosa in Adolescence: A Comprehensive Study of Multidimensional Factors Associated with Symptom Severity 1 Year Following the Diagnosis.

The overarching goal of this study was to examine the unique contribution of psychological, familial, and friendship factors in explaining anorexia nervosa (AN) symptom severity 1 year following diagnosis among a sample of adolescent girls. A second objective was to determine whether friendship factors mediated the association between psychological and/or familial factors and AN symptom severity. This study included 143 adolescent girls under the age of 18 diagnosed with AN (M = 14.84, SD = 1.31). Participants were recruited from specialized eating disorder treatment programs. At admission (T1), participants completed a set of self-report questionnaires measuring psychological, familial, and friendship factors. AN symptom severity was assessed 1 year later (T2). Results of hierarchical regression analysis revealed that greater general psychological maladjustment at T1 (b = .26; se = .03; p = .00) was associated with greater AN symptom severity at T2. Greater alienation from friends at T1 (b = 1.20, se = .53, p = .03) also predicted greater AN symptom severity at T2, above and beyond the influence of adolescent girls' general psychological maladjustment. Finally, the mediating role of alienation from friends in the association between general psychological maladjustment at T1 and AN symptom severity at T2 was also identified. AN is a multidimensional disorder with a prognosis that involves both psychological and social factors. The results stemming from the present study shed light on the role of peer as a mechanism through which general psychological maladjustment is linked to AN symptom severity 1 year following diagnosis.

Personality traits in adolescents with eating disorder: A meta-analytic review.

OBJECTIVE: Given the growing interest in personality traits among the young population with eating disorders (EDs) and the recognition that a better understanding of personality can facilitate clinical management, this meta-analytic study reviewed evidence concerning the relationship between personality traits and the presence of an ED during adolescence. METHOD: We conducted a systematic literature search to identify studies that examined personality traits among adolescents with an ED (anorexia nervosa, bulimia nervosa, binge-eating disorder, eating disorder not otherwise specified) and that compared these traits with a normative group without an ED. The personality traits investigated in the selected studies were organized according to the personality trait domains presented in the Diagnostic and Statistical Manual of Mental Disorders (fifth ed.). Effect sizes of the mean differences were calculated for each domain. We performed meta-regressions to assess the moderating effect of ED subtype and age on the combined effect sizes. RESULTS: Twenty-six studies met our inclusion criteria, containing a total of 63 effect sizes. Adolescents with EDs differed from the non-ED group according to traits related to negative affectivity (g = 0.78), detachment (g = 0.69), and conscientiousness (g = -0.53). The presence of an anorexia nervosa diagnosis moderated the relationship between an ED and personality traits; this diagnosis was more strongly associated with conscientious traits compared to other EDs. DISCUSSION: Our findings provide evidence that personality traits are related to EDs in adolescents. Thus, considering personality traits could lead to a better understanding of etiological and maintenance factors for EDs.

[Influence of the internet on eating disorders in teenagers]. / Influence d'Internet sur les TCA chez les adolescents.

Thanks to new technologies, young people can keep themselves informed, communicate, socialise and perform a host of other activities more easily, online. Adolescence is also a period of vulnerability for the development of eating disorders. This expansion of digital media in the daily lives of adolescents raises questions regarding the long-term implications and the possible impacts of the internet on the evolution and treatment of people with eating disorders.

Childhood abuse and neglect may induce deficits in cognitive precursors of psychosis in high-risk children.

BACKGROUND: Millions of children are born to parents affected by major psychoses. Cognitive dysfunctions seen in patients are already detectable in these children. In parallel, childhood maltreatment increases the risk of adult psychoses through unknown mechanisms. We investigated whether high-risk offspring exposed to abuse/neglect displayed more cognitive precursors of adult psychoses in childhood and adolescence than nonexposed offspring. METHODS: We used a stepwise selection strategy from a 25-year follow-up of 48 densely affected kindreds including 1500 adults (405 patients with schizophrenia or bipolar disorder) to select high-risk offspring aged 6-22 years for inclusion in our study. All offspring were assessed for childhood trauma from direct interviews with the offspring, parents and relatives and from the review of lifetime medical records of parents and children and administered a neuropsychological battery including IQ and 4 of the most impaired neuropsychological domains in psychoses. RESULTS: Our study included 66 high-risk offspring. Those who were exposed to abuse/neglect had significantly lower IQ (effect size [ES] = 0.61) than nonexposed offspring and displayed poorer cognitive performance in visual episodic memory (ES = 0.67) and in executive functions of initiation (ES = 1.01). Moreover, exposed offspring presented more combinations of cognitive deficits that were associated with lower Global Assessment of Functioning scores. LIMITATIONS: Exposure to abuse/neglect was not assessed in the control group, thus the study could not test whether the effect of childhood maltreatment occurred only in a high-risk setting and not in the general population. CONCLUSION: In high-risk youths, maltreatment in childhood/adolescence may negatively impact cognitive domains known to be impaired in adults with psychoses, suggesting an early mediating effect in the association between abuse/neglect and adult psychoses. This finding provides a target for future developmental and preventive research.

Recovery Trajectories in Adolescent Girls with Anorexia Nervosa.

Background: This study aimed to document recovery trajectories among adolescents with anorexia nervosa (AN) based on three markers of remission, namely changes in body weight, food restriction, and excessive exercise, and to identify predictors of these trajectories. Methods: One hundred twenty-six adolescent girls (14.7 ± 1.3 years) were recruited during initial assessment visits at specialized eating disorder (ED) programs in five University Health Centers across the province of Quebec, Canada. z-BMI and AN symptom severity (food restriction and excessive exercise) were assessed at initial assessment visits and subsequently reassessed at each quarterly follow-up over a 12-month period to identify recovery trajectories. Results: Considering the three markers of remission, three distinct trajectories emerged: Group 1, rapid responders; Group 2, gradual responders; and Group 3, unstable responders. At initial visits, a difference between groups was found regarding the type of treatment (p = 0.01) and weight suppression (p = 0.02). Group 1 had a higher number of youths hospitalized than Group 2 and Group 3, and a greater weight suppression than Group 3. Furthermore, individuals with atypical AN were more likely to belong to Group 2 than to Group 1 and Group 3 (p < 0.0001). Conclusions: This study contributes to a better understanding of the heterogeneity of recovery trajectories in adolescent girls with AN.

[Cognitive-behavioural therapy in early psychosis: an open study in a clinical setting]. / La thérapie cognitivo-comportementale des psychoses en début d'évolution: étude ouverte en milieu clinique.

OBJECTIVE: Meta-analysis results confirm that cognitive-behavioural therapy in psychosis (CBTp) is efficient for persistent symptoms. However, external validity remains unexplored. CBTp in early psychosis (in the first 5 years after diagnosis) seems especially relevant, given a possible impact on long-term course. However, the few studies that experimented with CBTp with this population had poor results. They all introduced therapy during an acute psychotic phase and most of them performed a limited number of sessions. Therefore, our introductory open study aimed to evaluate the efficiency of a 25-session Australian CBTp program, introduced during a stable phase in Quebec patients with early psychosis. METHOD: The Active Cognitive Psychotherapy for Early Psychosis program was offered to 20 patients aged 14 years or older, at a rate of 1 weekly session during 6 months. RESULTS: The acceptance rate was 75%, the mean session compliance rate was 84%, and participants were satisfied with the program. Pre- and post-CBTp analyses indicated statistically significant improvements of psychotic symptomatology, which were maintained at 6-month follow-up. Self-criticism improvement was also statistically significant, post-CBTp. CONCLUSION: CBTp seems to be appropriate in our clinical settings, including with adolescents. Moreover, the treatment dosage used seems to foster session compliance.

True and false memories in adolescents with psychosis: evidence for impaired recollection and familiarity.

INTRODUCTION: Psychotic patients are impaired on recall and recognition of studied items (true memory) and typically make more false recall (intrusions) and false recognition than controls, reflecting greater susceptibility to false memory. The functional mechanisms underlying these deficits are poorly understood. The aim of this study was to examine recollection and familiarity in true and false memory in psychotic adolescents without long-term exposure to medication and repeated hospitalisations. METHODS: Seventeen adolescents with psychosis and 17 matched controls were tested on a DRM false memory paradigm combined with a remember (R)/know (K)/guess (G) procedure. Recall and recognition of targets (studied words), critical lures (associated words) and unrelated distractors were measured. Between-group comparisons were made using t-tests and mixed ANOVAs. Independent estimates for recollection and familiarity were also calculated. RESULTS: True memory was impaired in patients. Similar rates of false memory for critical lures were found in both groups. False memory for unrelated distractors was increased in patients. Contrary to controls, who attributed more R and K responses to targets than lures, patients attributed similar proportions of R and K responses to targets and lures. Furthermore, patients attributed more K responses than controls to all distractors. CONCLUSIONS: These findings suggest a deficit in recollection- and familiarity-based memory in psychotic adolescents as well as reliance on preserved gist or meaning-based memory to support poor item-specific memory.

[Improving detection and treatment of early psychosis in Québec: the Quebec association of early psychosis (l'Association québécoise des programmes pour premiers épisodes psychotiques, AQPPEP), sees to it]. / Améliorer la détection et le traitement des psychoses débutantes au Québec: L'Association québécoise des programmes pour premiers épisodes psychotiques (AQPPEP) y voit.

June 2004: the Quebec association of early psychosis programs, AQPPEP (Association québécoise des programmes pour premiers épisodes psychotiques), was created. The Association's objectives is to promote clinical and scientific discussions between health care professionals and researchers sharing an interest for people suffering from an early psychosis, and to improve earlier detection of psychosis. It also aims at increasing awareness of the problem in the general population and governments. To reach these goals, AQPPEP has organized the first early psychosis awareness day in Quebec and developed one of the rare French language web sites in this area. Finally, the Association is a tool to better face, in a concerted approach, some difficulties that many first episode clinics have to deal with, in order to share or develop common solutions.

Liability indicators aggregate many years before transition to illness in offspring descending from kindreds affected by schizophrenia or bipolar disorder.

Objectives: Offspring born to patients with affective and non-affective psychoses display indicators of brain dysfunctions that affected parents carry. Such indicators may help understand the risk trajectory. Methods: We followed up the clinical/developmental trajectories of 84 young offspring born to affected parents descending from the Quebec kindreds affected by schizophrenia or bipolar disorder. We longitudinally characterized childhood trajectories using 5 established risk indicators: cognitive impairments, psychotic-like experiences, non-psychotic DSM diagnosis and episodes of poor functioning, trauma and drug use. Results: Overall, offspring individually presented a high rate of risk indicators with 39% having 3 or more indicators. Thirty-three offspring progressed to an axis 1 DSM-IV disorder, 15 of whom transitioned to a major affective or non-affective disorder. The relative risks for each risk indicator were low in these vulnerable offspring (RR = 1.92 to 2.99). Remarkably, transitioners accumulated more risk indicators in childhood-adolescence than non-transitioners (Wilcoxon rank test; Z = 2.64, p = 0.008). Heterogeneity in the risk trajectories was observed. Outcome was not specific to parent's diagnosis. Conclusion: Young offspring descending from kindreds affected by major psychoses would accumulate risk indicators many years before transition. A clustering of risk factors has also been observed in children at risk of metabolic-cardiovascular disorders and influences practice guidelines in this field. Our findings may be significant for the primary care surveillance of millions of children born to affected parents in the G7 nations. Future longitudinal risk research of children at genetic risk should explore concurrently several intrinsic and environmental risk modalities to increase predictivity.

Young offspring at genetic risk of adult psychoses: the form of the trajectory of IQ or memory may orient to the right dysfunction at the right time.

OBJECTIVE: Neurocognitive dysfunctions analogous to those of adult patients have been detected in children at risk of schizophrenia and bipolar disorder. This led to the following developmental question: Do IQ and memory impairments exhibit different developmental courses from childhood to young adulthood in terms of stability or fluctuations? METHODS: In a high risk sample, we used a step by step sampling approach to narrow-down the early disease mechanisms. Upstream, we started with a 20-year follow-up of 48 densely affected multigenerational kindreds, including 1500 clinically characterized adult members. We then identified 400 adult members affected by a DSM-IV schizophrenia or bipolar disorder. Downstream, we finally focused on 65 offspring (of an affected parent) aged 7 to 22, who were administered a neuropsychological battery. We then constructed cross-sectional trajectories that were compared to those of controls. RESULTS: The childhood IQ deficit displayed a stability until young adulthood. The delay in visual memory exhibited a non-linear two-stage trajectory: a lagging period during childhood followed by a recuperation period from adolescence until adulthood, as supported by a significant Group x Age Periods interaction. No data suggested deterioration between 7 and 22. CONCLUSION: In these offspring at genetic risk, the developmental trajectory of global IQ impairment may not apply to specific domains of cognition such as episodic memory. Different cognitive dysfunctions would mark different developmental courses. The shape of the trajectories might itself have a meaning and provide empirical leads for targeting the right dysfunction at the right time in future prevention research.

The nature of attentional dysfunctions in adolescents hospitalized for a first episode of psychosis.

INTRODUCTION: Dysfunctions of attentional processes have been previously described as a significant characteristic associated with psychotic disorders, but the nature of these deficits are insufficiently understood in adolescents experiencing a first episode of psychosis. This study aimed to exhaustively assess attentional processes in psychotic adolescents and their relationships with clinical symptoms and diagnoses. METHODS: A total of 24 adolescents hospitalized for a first episode of psychosis and their individually matched controls were assessed using theory-driven attentional tasks. RESULTS: No significant differences were found on sustained and selective attention tasks. Patients performed more poorly than controls in a dual-task paradigm, suggesting a divided attention impairment. Significant deficits were also obtained on tasks requiring inhibition and flexibility capacities. No differences were found between schizophrenic and affective subgroups of patients. The intensity of the symptoms of psychosis did not seem to be associated with attentional performances. CONCLUSION: These findings suggest that adolescents with a first episode of psychosis show specific rather than global attentional impairments. Sustained and selective attention seems to be preserved, whereas divided attention and attentional control are impaired when compared to controls. The attentional profile seems to be unrelated to either the clinical symptomatology or the diagnosis underlying psychosis. A partial independence between cognition and clinical symptomatology could be hypothesized from these data but remains to be directly assessed in future studies.

Effects of phonological and semantic cuing on encoding and retrieval processes in adolescent psychosis.

The aim of this study was to investigate the effects of cuing on encoding and retrieval processes in adolescent psychosis. Patients and controls were instructed to learn word lists under three conditions: no cue, phonological cue, and semantic cue. Memory performance was measured with free and cued recalls. In free recall, both groups showed higher performance with semantic than with phonological encoding cues, but patients had no advantage from semantic cuing relative to no cue, contrary to controls. Patients' performance improved from free to cued recall, but this was not sufficient to normalize their performance. Impaired strategic processes may lead to encoding and retrieval difficulties in patients.

Shared neurocognitive dysfunctions in young offspring at extreme risk for schizophrenia or bipolar disorder in eastern quebec multigenerational families.

BACKGROUND: Adult patients having schizophrenia (SZ) or bipolar disorder (BP) may have in common neurocognitive deficits. Former evidence suggests impairments in several neuropsychological functions in young offspring at genetic risk for SZ or BP. Moreover, a dose-response relation may exist between the degree of familial loading and cognitive impairments. This study examines the cognitive functioning of high-risk (HR) offspring of parents having schizophrenia (HRSZ) and high-risk offspring of parents having bipolar disorder (HRBP) descending from densely affected kindreds. METHODS: The sample consisted of 45 young offspring (mean age of 17.3 years) born to a parent having SZ or BP descending from large multigenerational families of Eastern Québec that are densely affected by SZ or BP and followed up since 1989. The offspring were administered a lifetime best-estimate diagnostic procedure (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition [DSM-IV]) and an extensive standard neuropsychological battery. Raw scores were compared with age- and gender-matched controls. RESULTS: The offspring displayed differences in memory and executive functions when compared with controls. Moderate to large effect sizes (Cohen d) ranging from 0.65 to 1.25 (for IQ and memory) were observed. Several of the cognitive dysfunctions were present in both HRSZ and HRBP, even when considering DSM-IV clinical status. CONCLUSIONS: HRSZ and HRBP shared several aspects of their cognitive impairment. Our data suggest that the extremely high genetic and familial loading of these HRs may have contributed to a quantitatively increased magnitude of the cognitive impairments in both HR subgroups, especially in memory. These offspring at heightened risk present difficulties in processing information that warrant preventive research.

Deficient relational binding processes in adolescents with psychosis: evidence from impaired memory for source and temporal context.

INTRODUCTION: Findings from the literature consistently revealed episodic memory deficits in adolescents with psychosis. However, the nature of the dysfunction remains unclear. Based on a cognitive neuropsychological approach, a theoretically driven paradigm was used to generate valid interpretations about the underlying memory processes impaired in these patients. METHODS: A total of 16 inpatient adolescents with psychosis and 19 individually matched controls were assessed using an experimental task designed to measure memory for source and temporal context of studied words. Retrospective confidence judgements for source and temporal context responses were also assessed. RESULTS: On word recognition, patients had more difficulty than controls discriminating target words from neutral distractors. In addition, patients identified both source and temporal context features of recognised items less often than controls. Confidence judgements analyses revealed that the difference between the proportions of correct and incorrect responses made with high confidence was lower in patients than in controls. In addition, the proportion of high-confident responses that were errors was higher in patients compared to controls. CONCLUSIONS: These findings suggest impaired relational binding processes in adolescents with psychosis, resulting in a difficulty to create unified memory representations. Our findings on retrospective confidence data point to impaired monitoring of retrieved information that may also impair memory performance in these individuals.