The over‐pruning hypothesis of autism

This article outlines the over‐pruning hypothesis of autism. The hypothesis originates in a neurocomputational model of the regressive sub‐type (Thomas, Knowland & Karmiloff‐Smith, 2011a, 2011b). Here we develop a more general version of the over‐pruning hypothesis to address heterogeneity in the timing of manifestation of ASD, including new computer simulations which reconcile the different observed developmental trajectories (early onset, late onset, regression) via a single underlying atypical mechanism; and which show how unaffected siblings of individuals with ASD may differ from controls either by inheriting a milder version of the pathological mechanism or by co‐inheriting the risk factors without the pathological mechanism. The proposed atypical mechanism involves overly aggressive synaptic pruning in infancy and early childhood, an exaggeration of a normal phase of brain development. We show how the hypothesis generates novel predictions that differ from existing theories of ASD including that (1) the first few months of development in ASD will be indistinguishable from typical, and (2) the earliest atypicalities in ASD will be sensory and motor rather than social. Both predictions gain cautious support from emerging longitudinal studies of infants at‐risk of ASD. We review evidence consistent with the over‐pruning hypothesis, its relation to other current theories (including C. Frith's under‐pruning proposal; C. Frith, 2003, 2004), as well as inconsistent data and current limitations. The hypothesis situates causal accounts of ASD within a framework of protective and risk factors (Newschaffer et al., 2012); clarifies different versions of the broader autism phenotype (i.e. the implication of observed similarities between individuals with autism and their family members); and integrates data from multiple disciplines, including behavioural studies, neuroscience studies, genetics, and intervention studies.     

The performance implication of obsessive work passion: unpacking the moderating and mediating mechanisms from a conservation of resources perspective

Work passion is an important determinant of work performance. While harmonious work passion (HWP) shows its consistent predictive value, obsessive work passion (OWP) appears to have a mixed relationship with work performance. To address this puzzle, we integrate research on OWP and emotional exhaustion with conservation of resources (COR) theory. Specifically, we argue that OWP determines emotional exhaustion, whose relationship with work performance is attenuated by leader-member exchange (LMX). By conducting a field study with a sample of 262 US employees, we found supportive evidence, even when controlling for psychological detachment from work. The findings somewhat reconcile the inconsistent results about OWP and work performance in the literature, shed light on research on work passion, LMX, and emotional exhaustion, and provide implications for managerial practice.     

The Relative Effectiveness of External, Peer, and Self-Coaches

Deux recherches poursuivies sur deux continents ont fait appel à deux variables dépendantes différentes pour étudier l’efficacité relative du coach externe, du pair coach et de l’autocoaching sur la performance des participants (maîtrise de gestion). La première investigation concernait trente étudiants en gestion canadiens. Ceux qui étaient suivis par un coach extérieur présentaient une meilleure adaptation au travail collectif que ceux qui avaient un pair pour coach. La seconde recherche portait sur 23 managers en gestion australiens. Ceux qui étaient suivis soit par un coach externe, soit par eux‐même, ont obtenu des résultats significativement plus élevés que ceux qui étaient accompagnés par un pair. Dans les deux études, le coach externe avait aux yeux de l’intéressé une plus grande crédibilité que le pair. Dans la seconde étude, l’autocoaching était mieux vu que le coaching du pair. La satisfaction relative à l’ensemble du processus était plus forte chez les managers pourvus d’un coach externe. Two studies in two different continents using two different dependent variables examined the relative effectiveness of external, peer, and self‐coaches on the performance of participants in two MBA programs. The first study involved MBA students in Canada (n= 30). Those who were coached by an external coach exhibited higher teamplaying behavior than did those who were coached by peers. The second study involved EMBA managers in Australia (n= 23). Those who were either coached by an external coach or who were self‐coached had significantly higher grades than those who were coached by a peer. In both studies, an external coach was perceived by the participants to have higher credibility than their peers. In the second study, self‐coaching was perceived to be more credible than coaching from peers. Satisfaction with the coaching process was highest among the managers who had an external coach.     

The Situational Interview as a Predictor of Academic and Team Performance: A Study of the Mediating Effects of Cognitive Ability and Emotional Intelligence

The criterion‐related and construct validity of the situational interview (SI) was examined. Both the SI and cognitive ability had predictive validity for the academic performance of managers and professionals (n=75) in an executive MBA course. Only the SI predicted teamplaying behavior assessed by peers (r=.32, p<.05). The correlation between the SI and cognitive ability was not significant. Emotional intelligence completely mediated the relationship between the SI and teamplaying behavior.     

Organizational Attractiveness of Foreign‐Based Companies: A country of origin perspective

Attracting high‐quality applicants is a crucial activity for the success of an organization. In today's globalized world, multinational enterprises need to attract talent not only in the domestic market but also in overseas markets. This exploratory study introduces the country of origin image framework from marketing literature to the context of recruitment in order to examine why foreign companies are (not) attractive to local job seekers, exemplified by the case of Japanese and US companies in Vietnam. Survey results of more than 300 participants confirmed the robustness of our postulated framework. Symbolic images such as the technological development and images of people of a country predicted the attractiveness of foreign companies above and beyond instrumental images of job characteristics. Detailed explanations and practical implications are provided.     

Heidegger's Generative Thesis

Abstract: For William Blattner, Heidegger's phenomenology fails to demonstrate how a nonsuccessive temporal manifold can ‘generate’ the appropriate sequence of world‐time Nows. Without this he cannot explain the ‘derivative’ status of ordinary time. In this article I show that it is only Blattner's reconstruction that makes failure inevitable. Specifically, Blattner is wrong in the way he sets out the explanatory burden, arguing that the structure of world‐time must meet the traditional requirements of ordinary time logic if the derivation is to succeed. He takes this to mean: mundane ‘tasks’, the contents of world‐time nows, must form a transitive series, importing back into world‐time the very structure that Heidegger says is derived by its levelling‐off. I argue, instead, that world‐time nows, seen at the level of lived content, can be quite ‘irrational’ but this is perfectly consistent with the generative thesis. Adapting Blattner's useful suggestion that temporality is sequence building or ‘iterative’ I show that iteration does not manifest itself at the level of tasks but at the ‘existential’ level of my involvement in a task. Depriving that involvement of its expressive content is what accounts for the levelling‐off of the world‐time now and thus the derivation of the ordinary concept of time.     

Heidegger and the narrativity debate

One unresolved dispute within Heidegger scholarship concerns the question of whether Dasein should be conceived in terms of narrative self-constitution. A survey of the current literature suggests two standard responses. The first correlates Heidegger’s talk of authentic historicality with that of self-authorship. To the alternative perspective, however, Heidegger’s talk of Dasein’s existentiality, with its emphasis on nullity and unattainability, is taken as evidence that Dasein is structurally and ontologically incapable of being completed via any life-project. Narrativity imports into Being and Time commitments concerning temporality, selfhood, and ethics, which Heidegger rejects. Although both positions find good exegetic support for their conclusions, they can’t both be right. In this article, I navigate a path between these two irreconcilable positions by applying insights derived from recent debates within Anglo-American literature on personal identity. I develop an alternative thesis to Narrativism, without rejecting it outright, by arguing that Dasein can be analysed in terms of what I call “narratability conditions.” These allow us to make sense of the prima facie paradoxical notion of “historicality without narrativity.” Indeed, rather than reconciling the two standard positions, I hold that the tension between them says something important about Dasein’s kind of existence. Thus I conclude that while the narrativist question “Who ought I to be?” is perfectly legitimate within limits, what the existential analysis of the limits on narratability reveals is that no answer to this question can ever be definitive.     

Do young boys and girls have distinct and different approaches and needs in relation to spiritual development?

Difficulties are outlined in how to consider whether boys and girls have distinctive approaches and needs in relation to spiritual development, especially the lack of any agreed definition of spiritual development and the nature of the research literature relating to gender. I explore this without presupposing, or excluding, any particular definition, arguing that, whatever one's assumptions and beliefs about spirituality, these influence, and are influenced by, assumptions and beliefs about gender, and vice versa. I present empirical evidence on aspects associated with personal well‐being indicating outcomes strongly differentiated by gender. I examine research evidence in relation to gender within a range of areas commonly associated with spirituality and highlight some gaps. I argue that considering spiritual development through the lens of gender and gender through that of spiritual development can illuminate one's understanding of both concepts. I suggest some possible implications for future research and for teachers of young children.