Age-related changes in multi-finger interactions in adults during maximum voluntary finger force production tasks

This study aimed to continue our characterization of finger strength and multi-finger interactions across the lifespan to include those in their 60s and older. Building on our previous study of children, we examined young and elderly adults during isometric finger flexion and extension tasks. Sixteen young and 16 elderly, gender-matched participants produced maximum force using either a single finger or all four fingers in flexion and extension. The maximum voluntary finger force (MVF), the percentage contributions of individual finger forces to the sum of individual finger forces during four-finger MVF task (force sharing), and the non-task finger forces during a task finger MVF task (force enslaving), were computed as dependent variables. Force enslaving during finger extension was greater than during flexion in both young and elderly groups. The flexion-extension difference was greater in the elderly than the young adult group. The greater independency in flexion may result from more frequent use of finger flexion in everyday manipulation tasks. The non-task fingers closer to a task finger produced greater enslaving force than non-task fingers farther from the task finger. The force sharing pattern was not different between age groups. Our findings suggest that finger strength decreases over the aging process, finger independency for flexion increases throughout development, and force sharing pattern remains constant across the lifespan.     

Stemming the tide: Predicting women engineers' intentions to leave

This investigation adapts and extends the Social Cognitive Career Theory (SCCT) by integrating it with central constructs from turnover theory. The extended model proposes that domain specific self-efficacy and outcome expectations predict job satisfaction and organizational commitment — the two key job attitudes that have been established as influential predictors of turnover cognitions and behaviors. Further, we proposed that one form of organizational supports, specifically developmental opportunities at work, are sources of self efficacy and outcome expectations, and that the relationship between organizational supports and job attitudes is mediated by self-efficacy and outcome expectations. The proposed model was tested on a national sample of 2,042 women engineers. Overall, the results provided support for our newly developed model. Implications for theory, research, and practice are discussed.     

Examining the role and functions of self-development in healthcare therapy trainings: A review of the literature with a modest proposal for the use of learning agreements

Many healthcare trainings with a psychodynamic orientation encourage or require students to commit to a process of personal development, such as provided through attending individual psychotherapy and/or an experiential ‘as if therapy’ group. This paper reviews recent literature about training in psychodynamically oriented practices within counselling psychotherapy, psychiatry, the creative arts therapies and clinical psychology. The results indicate that the mandatory personal development dimension of therapy training needs urgent reassessment. Results of studies consistently call for further research about the direct benefits of personal development on students’ development of skills for therapy practice. There is minimal evidence to indicate what self-development through individual psychotherapy can specifically deliver in terms of eventual professional competence. To address some aspects of the current lacuna, this paper summarises the recommendations for training programmes available from the current research, and makes a modest proposal for the use of learning agreements, rather than only mandated hurdle requirements, to ensure that the incremental steps by which the student attains expected requirements is negotiated and agreed within regularised, and widely accepted university course procedures.     

The ‘Collective Pierre Rivière’: Using collective biography and ambling conversational methods to interrogate and re-present pivotal moments from the Pierre Rivière narratives

Collective biography is a research strategy that works at the level of bodily and emotional knowledge and moves beyond individualized versions of the subject, towards subjects-in-process and subjects-in-relation (Davies and Gannon, 2006). In this paper we, the authors, reflect upon and describe our experiences of using collective biography practices as a way of interrogating and writing our way into ‘pivotal moments’ within the Pierre Rivière texts (both book and film). The collective writing about ‘pivotal moments’ that our research group generated during workshops held at a university, exploring the ‘Pierre Rivière’ narratives have then been further reworked into a reflective, layered account, through an ambling conversational process.     

‘Goals’ are not an integral component of imitation

Several theories suggest that actions are coded for imitation in terms of mentalistic goals, or inferences about the actor’s intentions, and that these goals solve the correspondence problem by allowing sensory input to be translated into matching motor output. We tested this intention reading hypothesis against general process accounts of imitation using the pen-and-cups task. The task has three components: participants place a pen in one of two cups, using their right or left hand, and one of two grips. Previous research has revealed a colour minimum error pattern; when one of the components is differentially coloured (e.g., one cup is red and the other blue), accuracy is greatest on the coloured dimension. We found the colour minimum error pattern, not only in the standard version of the task, where participants imitate the actions of a human model, but also in three novel variants of the task, in which participants responded on the basis of spatial or arbitrary stimulus–response mappings to ‘geometric’, non-biological stimuli. These stimuli do not afford the attribution of intentions, and therefore our results support generalist theories of imitation by showing that the colour minimum error pattern is due, not to intention reading, but to the operation of task-general processes of perception, attention and motor control.