Data, model, conclusion, doing it again

This paper explores the robustness of conclusions from a statistical model against variations in model choice (rather than variations in random sampling and random assignment to treatments, which are the usual variations covered by inferential statistics). After the problem formulation in section 1, section 2 presents an example from Box and Tiao in which variation in parent distribution is modeled for a one sample location problem. An adaptive Bayesian procedure permits to use a weighted mixture of parent distributions rather than choosing just one, such as a normal or a uniform distribution.In section 3 similar considerations are applied to an event history model for the influence of education and gender on age at first marriage, but here the conclusions are hardly influenced by the choice of the duration distribution. In section 4 a brief discussion of model choice in factor analysis and structural equation models is followed by a more elaborate treatment of the choice of integer valued slopes for item response functions in the OPLM model which is an extension of the Rasch model. A modest simulation study suggests that Adaptive Bayesian Modeling with a mixture of sets of slopes works better than fixing one set of postulated slopes.The paper concludes with some remarks on the roles and sources of prior distributions followed by a short epilogue which argues that simultaneous consideration of a class of models for the same data is sometimes superior to exclusively analyzing the data under one specific model chosen from such a class.This article is based on the Presidential Address Ivo W. Molenaar gave on June 20, 1998 at the 1998 Annual Meeting of the Psychometric Society held at the University of Illinois in Champaign, Illinois. Thanks is given to John Wiley & Sons and George C. Tiao for granting permission to reprint three figures from the book George C. Tiao wrote with George E. P. Box titled Bayesian Inference in Statistical Analysis.—EditorThanks are due to Anne Boomsma, Jeffrey Hoogland, Mark Huisman, Tom Snijders, Marijtje Van Duijn, and Norman Verhelst for suggesting improvements and/or assisting with data analyses.     

Maternal postpartum depression is a risk factor for infant emotional variability at 4 months

Maternal postpartum depression (PPD) is a risk for disruption of mother–infant interaction. Infants of depressed mothers have been found to display less positive, more negative, and neutral affect. Other studies have found that infants of mothers with PPD inhibit both positive and negative affect. In a sample of 28 infants of mothers with PPD and 52 infants of nonclinical mothers, we examined the role of PPD diagnosis and symptoms for infants’ emotional variability, measured as facial expressions, vocal protest, and gaze using microanalysis, during a mother–infant face-to-face interaction. PPD symptoms and diagnosis were associated with (a) infants displaying fewer high negative, but more neutral/interest facial affect events, and (b) fewer gaze off events.  PPD diagnosis, but not symptoms, was associated with less infant vocal protest. Total duration of seconds of infant facial affective displays and gaze off was not related to PPD diagnosis or symptoms, suggesting that when infants of depressed mothers display high negative facial affect or gaze off, these expressions are more sustained, indicating lower infant ability to calm down and re-engage, interpreted as a disturbance in self-regulation. The findings highlight the importance of not only examining durations, but also frequencies, as the latter may inform infant emotional variability.     

Does frontal brain activity mediate the effect of depression prevention in adolescents? A pilot study

We investigated whether (a) depression prevention was associated with depressive symptoms and medial-frontal alpha asymmetry in adolescents; (b) alpha asymmetry mediated the association between participation in a prevention program and depressive symptoms; and (c) gender affects these associations. In our randomised control group study, we compared a universal prevention program (n = 40 adolescents, 14 females) with a non-intervention control condition (n = 39 adolescents, 20 females) in German secondary school students (mean age: 13.53 years, SD = 0.53). We collected data at baseline, post-intervention, 6-month, and 12-month follow-up using the Self-Rating Questionnaire for Depressive Disorders (SBB-DES) and resting medial-frontal alpha activity on F3 and F4. We found that girls benefitted from participating in the prevention program in regards to their depressive symptoms at 12-month follow-up but not alpha asymmetry. In boys, participation in the prevention program was associated with their alpha asymmetry at 6-month follow-up but not their depressive symptoms. Alpha asymmetry did not mediate the effects of the prevention program on depressive symptoms in either gender. Although participation in the prevention program was associated with both depressive symptoms and alpha asymmetry, those associations seem independent from each other. Possible explanations for this result pattern are discussed.     

Alphabetizing in old age

Abstract: A long term, intensive analysis with a woman in old old age is reported. An attempt is made to answer the question, ‘What, in analytic work, is healing?’. The patient's previous classical Jungian work is contrasted with the author's developmental perspective. It is suggested that an enactment, representing what Neville Symington has called an analyst's act of freedom, was crucial in effecting a profound transformation in the patient's psyche.     

有晶状体眼后房型人工晶状体植入矫正高度近视术后7年随访结果分析

为了评估有晶状体眼后房型人工晶状体植入术矫治高度近视的有效性、预测性及安全性,选择高度近视患者27例50眼,观察术前及术后的裸眼视力、最佳矫正视力、屈光度、内皮细胞计数、眼内压及并发症。7年随访结果发现,裸眼视力明显优于术前裸眼视力,12％最佳矫正视力比术前最佳矫正视力多看1行或多行。术后1个月角膜内皮计数较术前丢失4．12％,但术后3年、7年随访角膜内皮计数同术后1个月无统计学差异。随访中所有患者均未出现严重并发症。因此,该手术方法在高度近视的矫治中安全、有效、可预测。     

不同注意条件下动态面孔表情识别的ERP研究

利用ERP技术对16名被试在不同注意负荷下对动态表情识别的脑时程特点进行了考察,结果发现：N170成分不受注意负荷和表情效价影响;低注意负荷条件下动态表情加工早期负性表情诱发的EPN成分（early posterior negativity）显著大于中性、正性表情,后期高级分析阶段正、负性表情均诱发明显的LPP成分（late positive potentials）,且负性较正性表情诱发更大的LPP成分;而在高注意负荷条件下并未发现表情识别诱发明显的EPN或LPP成分。这些结果说明,动态表情识别明显受到注意资源调节,只有在注意资源不断增加时表情加工才会出现注意偏向效应,尤以负性表情的加工优势最为凸显且持久,正性表情相对微弱和短暂。     

BION'S THINKING ABOUT GROUPS: A STUDY OF INFLUENCE AND ORIGINALITY

One of Bion's least‐acknowledged contributions to psychoanalytic theory is his study of the relationship between the mind of the individual (the ability to think), the mentalities of groups of which the individual is a member, and the individual's bodily states. Bion's early work on group therapy evolved into a study of the interplay between mind and bodily instincts associated with being a member of a group, and became the impetus for his theory of thinking. On the foundation of Bion's ideas concerning this interaction among the thinking of the individual, group mentality, and the psyche‐soma, the author presents his thoughts on the ways in which group mentality is recognizable in the analysis of individuals.     

‘Battling with the unlaid ghost’: psychotherapy with a child traumatised in infancy

This paper attempts to explore the nature and consequences of early trauma on the mental development of a 9-year-old boy I have called Luke. The traumatic event occurred within the context of a more chronic and ongoing trauma, which was due to the lack of receptive and containing parental figures. The combination of these two kinds of traumatic experiences had a destructive impact on the making of Luke's internal world and greatly disrupted the development of his capacity for thought. I will specifically refer to the theory of trauma and to Bion's theory of thinking in order to illustrate the crucial link between trauma and mental work and the complex challenge it brings. I will describe how, during the course of 2 years of intensive treatment, Luke gradually became able to restore his capacity for mental functioning, which made it possible for him to begin to think about and make sense of his extreme emotional experiences.

Dans cet article, l'auteur cherche à explorer la nature et les conséquences, pour le développement psychique d'un garçon de neuf ans qu'il appelle Luke, d'un traumatisme précoce. L'événement traumatique s'est produit dans le contexte d'une situation traumatique plus chronique et plus globale en raison de l'absence de figures parentales réceptives et contenantes. L'association de ces deux types de vécu traumatique, avec leur impact destructeur sur la construction du monde interne de Luke, a créé des perturbations majeures du développement de sa capacité à penser. L'auteur se réfère tout particulièrement à la théorie du traumatisme ainsi qu'à la théorie de l'activité de pensée de W. R. Bion afin d'illustrer le lien fondamental qui existe entre traumatisme et travail psychique, ainsi que le défi complexe que ce travail doit confronter. L'auteur montre qu'au cours de deux années de traitement intensif Luke a progressivement retrouvé ses capacités de fonctionnement psychique, de sorte qu'il a pu commencer à réfléchir à ses vécus émotionnels insoutenables et réussir à y comprendre quelque chose.

Mots-clés: Traumatisme, “pare-excitation”, fonctionnement psychique, théorie de l'activité de pensée, fonction alpha, attaques contre l'activité de liaison

Riassunto: In questo articolo si cerca di esplorare la natura e le conseguenze del trauma precoce sullo sviluppo mentale di un bambino di nove anni che chiamerò Luca. L'evento traumatico accadde all'interno di un contesto di trauma pi[ugrave] cronico e duraturo dovuto all'assenza di figure parentali recettive e contenitive. La combinazione di questi due tipi di esperienze traumatiche ebbe un impatto distruttivo sul mondo interno di Luca e interferì enormemente con lo sviluppo della sua capacità di pensare. Farò principalmente riferimento alla teoria del trauma e alla teoria del pensiero di Bion per illustrare il legame particolare tra trauma e lavoro mentale e la complessa sfida che ne consegue. Descriverò come durante il lavoro intensivo di due anni, Luca divenne gradualmente capace di recuperare la sua capacità di funzionamento mentale che gli permise di incominciare a pensare e dare un senso alle sue esperienze emotive estreme.

Parole chiave: trauma, scudo protettivo, funzionamento mentale, teoria del pensiero, funzione alfa, attacco al legame

Der Artikel versucht, die Eigenschaften und Konsequenzen von frühem Trauma auf die psychische Entwicklung eines 9-jährigen Jungens, den ich Luke nenne, zu betrachten Das traumatische Ereignis passierte im Umfeld eines mehr chronischen und fortdauernden Traumas, wegen Mangel an rezeptiven und haltenden elterlichen Figuren. Die Kombination dieser zwei Arten von Trauma hatte eine destruktive Auswirkung auf das Entstehen von Lukes innerer Welt und störte erheblich die Entwicklung seiner Denkfähigkeit. Ich werden mich speziell auf Traumatheorie und auf Bion's Theorie des Denkens beziehen, um die entscheidende Verbindung zwischen Trauma und mentaler Arbeit und der komplexen Herausforderung, die das mit sich bringt, zu illustrieren. Ich werde beschreiben, wie Luke allmählich im Laufe einer zwei-jährigen intensiven Behandlung in der Lage war, seine Fähigkeit für mentales Funktionieren wiederherzustellen, was es ihm ermöglichte anzufangen, über seine extremen emotionalen Erfahrungen nachzudenken und Sinn herzustellen

Keywords: Trauma, Schutzschild, mentales Funktionieren, Theorie des Denkens, Alphafunktion, Angriffe auf Verbindungen     

Transforming valences through transitive inference: How are faces emotionally dissonant?

Information that is emotionally incongruous with self-concepts can produce feelings of unease. This implies that embedding incongruous information in newly formed relational structures would have little effect on their previous emotive properties. Alternatively, Relational Frame Theory highlights the importance of contextualized stimulus-stimulus relations, where the structure of a relational series is key in determining the function of its elements. To see whether series membership can mitigate ‘dissonance’ when a salient element is employed, the present investigation trained and tested a seven-term relational series (X>A>B>C>D>E>Y) using blurred faces as stimuli. Specifically, Stimuli X, A, B, D, E and Y were blurred unfamiliar faces and Stimulus C constituted of the participant’s own blurred face, assumed to be more salient than the former. To assess how the valences of the related stimuli were transformed by relational series membership, self-report ratings and electroencephalographic (EEG) recordings were collected before and after training the X>A>B>C>D>E>Y series. These pre vs. post contrasts revealed that, for unfamiliar faces, stimulus valence transformed as a function of relational structure. Conversely, the lack of difference in pre vs. post contrasts of Stimulus C, which maintained a high valence, suggest that relational series membership may not suffice to mitigate emotionally dissonant information.     

Frontal EEG alpha band asymmetry as a predictor of reasoning deficiency in depressed people

Cognitive deficits in depression are mostly apparent in executive functions, especially when integration of information and reasoning is required. In parallel, there are also numerous studies pointing to the frontal alpha band asymmetry as a psychophysiological marker of depression. In this study, we explored the role of frontal alpha asymmetry as a potential factor explaining the cognitive problems accompanying depression. Twenty-six depressed and 26 control participants completed a reasoning task and underwent 5 minutes of electroencephalography recording. In line with the previous studies, depressed people showed difficulties with reasoning but we did not observe the relationship between frontal asymmetry in the alpha band and depression. However, we found that in the depressed group the frontal alpha asymmetry index was characterised by larger variance than in the control group, and it was also a strong predictor of cognitive functioning exclusively in the depressed group. Our results point to the disruption of a psychophysiological balance, reflected in changed frontal alpha asymmetry (into more left-sided frontal asymmetry in the alpha band, reflecting more right-sided cortical activity) as a possible brain correlate of cognitive disturbances present in depressive disorders.