Rapid Error Correction During Human Arm Movements

Studies were made of rapid error correction movements in eight subjects performing a visually guided tracking task involving flexion-extension movements about the elbow. Subjects were required to minimize reaction times in this two-choice task. Errors in initial movement direction occurred in about 3% of the trials. Error correction times (time from initiation to reversal of movement in incorrect direction) ranged from 30-150 ms. The first sign of correction of the error movement was a suppression of the electromyographic (EMG) activity in the muscle producing the error movement. This suppression started as early as 20-40 ms after the initiation of the error-related EMG activity and as much as 50 ms before any overt sign of limb movement. The correction of the error movement was also accompanied by an increase in the drive to the muscle which moved the arm in the correct direction. This increased activity always occurred after the initiation of the error movement. It is concluded that the first step in the error correction, suppression of drive to the muscle producing the error movement, cannot be based on information from the moving limb. It is thus suggested that this earliest response to the error movement is based on central monitoring of the commands for movement.     

Studying radical organizational innovation through grounded theory

The main aim of this article is to study the social processes occurring during the implementation of radical organizational innovation. Our aim is to understand the nature of the development of radical innovation by identifying the social processes, that are taking place. The perspective for the analysis stems from “grounded theory” as a generative and inductive analytical strategy (Glaser & Strauss, 1967). An in-depth case study was thoroughly analysed. A total of 14 indepth interviews were conducted with key informants selected according to “theoretical sampling” criteria. The systematic use of the “constant comparative method” allowed us to differentiate grounded theories leading to a “conceptual saturation” of the categories generated from the empirical data. Results show the emergence of two basic processes, “learning” and “adaptation”, during the development of radical innovation. A “grounded” theory concerning the development of radical innovation is proposed, emphasizing the organization's selfregulating capacity for learning and adapting. Our results describe innovation as an adaptable response that causes disorder in terms of “a creative tension in the system”. Finally, the methodological implications of grounded theory are discussed with regard to the study of radical innovation. The requisites and limitations observed in using grounded theory are outlined.     

Loss of Financial Capacity in Alzheimer's Disease: The Role of Working Memory

Recent research has demonstrated that loss of financial capacity is a common consequence of Alzheimer's disease (AD). While progressive cognitive decline is a defining feature of AD, the relationship between such decline and loss of financial capacity in AD remains unclear. Working memory may be strongly associated with financial abilities, as many financial tasks require temporary storage and manipulation of numerical and other data. The present study examined the relationship between financial capacity and working memory in AD patients. Participants included 20 AD patients and 23 cognitively intact older controls. Working memory was conceptualized using Baddeley and colleagues' model, which posits that the three components of the working memory system are the visuospatial sketchpad, phonological loop, and central executive system. The present study examined only the latter two components of working memory. Each participant was administered the Financial Capacity Instrument (FCI), an instrument that directly assesses eight domains of financial activity, and the WAIS-III Working Memory subtests (Digit Span, Arithmetic, Letter–Number Sequencing). AD patients as a group performed significantly below controls on the FCI Total Score and on each of the eight FCI domains and working memory subtests. Within the AD group, measures of the central executive component of working memory (WAIS-III Digits Backward, Arithmetic, and Letter-Number Sequencing tests) showed strong correlations with the FCI domains of basic monetary skills, checkbook management, bank statement management, and bill payment and FCI total score, while a measure of the phonological loop component of working memory (WAIS-III Digits Forward) was not significantly correlated with any FCI domains or with the FCI total score. The results suggest that the multiple domains of financial capacity are primarily correlated with the central executive component of working memory.     

Banking on brains: Insights of brain donor relatives and friends from an experiential perspective

Brain donation is critical to understand the pathological causes of neurodegenerative diseases. Increasing levels of donation requires an understanding of those factors that both encourage and deter donation. At present, there are few studies of how people understand, feel and decide about brain donation for scientific research. This qualitative experiential study contributes to the growing literature on brain donation through its specific focus on how the donation process is experienced from the perspectives of family members and friends. Nineteen semi-structured interviews were analysed using a phenomenologically informed thematic analysis. Four themes were derived from the analysis, three of which are described in detail: Making the decision to donate; a personal perspective on the donation process; the significance of the brain; beliefs about brain donation. In particular, the thematic analysis highlights the variation of individual decision making and the emotions and reasons underpinning such decisions. Key conclusions include the importance of integrated practice amongst relevant healthcare professionals as well as the need for supportive and informed communication. Also, in light of the finding that the brain assumed no special significance for most participants, the value of the distinction between brain donation for research purposes and organ transplantation is questioned.     

Workplace Helping: Interactive Effects of Personality and Momentary Positive Affect

We investigated interactions between positive affect and personality (empathy and altruism) as predictors of workplace helping. We conducted an experience sampling study with 80 participants, each of whom completed personality instruments and responded to a maximum of 5 electronic surveys per day for 5 workdays. This approach allowed us to study relationships over time between momentary positive affect and workplace helping behavior. We found that affect's relationship with later helping depended on the personality trait of altruism. We also found evidence that the relationship was reciprocal—helping others lead to increased positive affect, but again the relationship depended on altruism.     

COPY AND RECALL PERFORMANCE OF 6–8-YEAR-OLD CHILDREN AFTER STANDARD VS. STEP-BY-STEP ADMINISTRATION OF THE REY-OSTERRIETH COMPLEX FIGURE

Turner syndrome (TS) is a genetic disorder in females characterized by the complete or partial absence of one X chromosome. Its most consistent physical features include short stature and ovarian dysgenesis. TS individuals demonstrate a characteristic neurocognitive profile involving weaknesses in visuospatial processing. The hypothesis of defective right hemisphere specialization has been offered to explain the visuospatial deficits in TS. In contrast, an alternative explanation proposes a more uniform dysfunction of the left and right hemispheres, based on findings of symmetrical abnormalities. This article presents an overview of the two hypotheses, along with relevant findings on hemispheric specialization with respect to TS. The impact of the genetic and hormonal mechanisms on the neurocognitive profile of TS is also discussed and directions for further empirical research are identified.     

“Let's Do It Again”: Further Reflections on Eros and Attachment

Stephen Mitchell (1997) wrote that “Psychoanalysis and the Degradation of Romance,” the paper on which the book Can Love Last was based, provoked the most feedback, both intellectual and personal, of anything he had ever written. These reverberations have continued, unabated by his passing. One of the many responses to his work in this area took the form of a 3-week International Association for Relational Psychoanalysis and Psychotherapy (IARPP) online symposium (March 2003), which also addressed a paper of mine, “Attachment and Eros: Opposed or Synergistic?” (Goldner, 2004 Goldner, V. 2004. Attachment and eros: Opposed or synergistic?. Psychoanal. Dial, 14: 381–396. [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]) that proposed an alternative thesis about the fate of romantic love over the long term. Many on the IARPP colloquium took the position that although Mitchell and I used different intellectual strategies, our relational solution to the (apparent) opposition between attachment and eros was reductive because it occluded a full reckoning with the one-person aspects of sexuality. By contrast, my position argued that Mitchell's work was reductive because he gave short shrift to the two-person aspects of romantic intimacy (especially to the importance of the third). Those primarily concerned with sexuality argued that Mitchell under estimated the foundational irreconcilability between eros and attachment, but my concern with relationality lead me to argue that he over estimated this antagonism, and I ultimately proposed a means to deconstruct this opposition altogether     

Thou Shalt Not Covet Another Man? Exploring Constructions of Same‐Sex and Different‐Sex Infidelity Using Story Completion

This study explores conceptualisations of same‐ versus different‐sex infidelity in the context of a heterosexual marriage using story completion. A convenience sample of 57 female and male participants completed one of four versions of a story stem featuring a husband who is either emotionally or sexually unfaithful with a woman or a man. A social constructionist thematic analysis found that same‐sex infidelity was conceptualised as the ‘worst case scenario’ and was underpinned by a heteronormative framing of repressed homosexuality. By contrast, heterosexual infidelity was understood in terms of relational deficits and the wife assuming responsibility for these. Overall, the analysis shows that in making sense of same‐sex and heterosexual infidelity, the participants drew on familiar discourses of sexuality and gender, suggesting that despite social psychological theorising related to sexual fluidity, essentialist ideas remain firmly in place. Methodologically, the study demonstrates the usefulness of a rarely used tool—the story completion task—for accessing socio‐cultural discourses and dominant meanings surrounding a particular topic. Copyright © 2014 John Wiley & Sons, Ltd.     

The Mechanics of Human Achievement

Countless studies have addressed why some individuals achieve more than others. Nevertheless, the psychology of achievement lacks a unifying conceptual framework for synthesizing these empirical insights. We propose organizing achievement‐related traits by two possible mechanisms of action: Traits that determine the rate at which an individual learns a skill are talent variables and can be distinguished conceptually from traits that determine the effort an individual puts forth. This approach takes inspiration from Newtonian mechanics: achievement is akin to distance traveled, effort to time, skill to speed, and talent to acceleration. A novel prediction from this model is that individual differences in effort (but not talent) influence achievement (but not skill) more substantially over longer (rather than shorter) time intervals. Conceptualizing skill as the multiplicative product of talent and effort, and achievement as the multiplicative product of skill and effort, advances similar, but less formal, propositions by several important earlier thinkers.     

Predictors of Positive Outcomes in Offspring of Depressed Parents and Non-depressed Parents Across 20 Years

Understanding differences in factors leading to positive outcomes in high-risk and low-risk offspring has important implications for preventive interventions. We identified variables predicting positive outcomes in a cohort of 235 offspring from 76 families in which one, both, or neither parent had major depressive disorder. Positive outcomes were termed resilient in offspring of depressed parents, and competent in offspring of non-depressed parents, and defined by two separate criteria: absence of psychiatric diagnosis and consistently high functioning at 2, 10, and 20 years follow-up. In offspring of depressed parents, easier temperament and higher self-esteem were associated with greater odds of resilient outcome defined by absence of diagnosis. Lower maternal overprotection, greater offspring self-esteem, and higher IQ were associated with greater odds of resilient outcome defined by consistently high functioning. Multivariate analysis indicated that resilient outcome defined by absence of diagnosis was best predicted by offspring self-esteem; resilient outcome defined by functioning was best predicted by maternal overprotection and self-esteem. Among offspring of non-depressed parents, greater family cohesion, easier temperament and higher self-esteem were associated with greater odds of offspring competent outcome defined by absence of diagnosis. Higher maternal affection and greater offspring self-esteem were associated with greater odds of competent outcome, defined by consistently high functioning. Multivariate analysis for each criterion indicated that competent outcome was best predicted by offspring self-esteem. As the most robust predictor of positive outcomes in offspring of depressed and non-depressed parents, self-esteem is an important target for youth preventive interventions.