Observation of an action with a congruent contextual background facilitates corticospinal excitability: A combined TMS and eye-tracking experiment

Action observation produces activity in similar regions of the brain to those involved in action execution and can offer an effective intervention for motor (re)learning, although optimal viewing conditions for such interventions remain to be established. In this experiment, single-pulse transcranial magnetic stimulation (TMS) and eye-tracking were used simultaneously to investigate the effect of manipulating background context on both corticospinal excitability and visual attention during action observation. Twenty-four participants observed four different videos: (i) a static hand holding a sponge (control condition); and an index finger-thumb pinch of a sponge against (ii) a plain black background; (iii) a background containing objects that were incongruent with the observed action; and (iv) a background containing objects that were congruent with the observed action. TMS was delivered to the hand representation of the left primary motor cortex and motor evoked potentials were recorded from the first dorsal interosseous and abductor digiti minimi muscles of the right hand. Eye movements were recorded throughout the experiment. Results indicated that corticospinal excitability was facilitated during the congruent context condition compared to both the static hand and plain black background conditions. In addition, the number of fixations and percentage of time participants spent fixating on the background scene were significantly greater during the incongruent and congruent conditions compared to the static hand and plain black background conditions. These results indicate that the provision of additional visual information that is congruent with the observed movement contributes to a facilitation of corticospinal excitability by providing the observer with information regarding the goal and intention of the observed action. Providing congruent contextual information may enhance the efficacy of action observation interventions for motor (re)learning

Exploring Participant-centred Reflexivity in the Research Interview

The increasing importance of reflexivity within social research highlights the importance of the construction of knowledge in relation to the research endeavour. However, researcher-orientated notions of reflexivity can often relegate a discussion of participant reflexivity. Drawing on two motifs that emerged during the analysis of interview data from one research project, I argue that developing Bourdieu's concepts of habitus, practical mastery and symbolic mastery allows us to understand how reflexivity-in-practice is situated and enacted by both parties involved in the research interaction, and how such `sticky moments' help us work towards a more participant-focussed mode of reflexivity. In situating the article within larger social research debates, I suggest that ascribing a more active role to interview participants as reflexive subjects can help to address some of the wider ethical debates over the role and positioning of participants in the research process.</jats:p

The quiet editor: Ivan Vladislavić and South African cultural production

This article examines the literary and sociological significance of Ivan Vladislavić’s "double life” (Lahire, 2010: n.p.) as both editor and writer. With reference to a number of his editorial roles as well as the joint projects he has worked on with writers and visual artists, the article considers how Vladislavić’s work with others spreads symbolic value. Described by one of his clients as the “quiet editor”, Vladislavić can be read as a new kind of author; what he terms “creative editing” (Steyn, 2012: n.p.) as a new kind of writing, through which more traditional models of authorship and literary production are thrown into question — less Bourdieu’s (1984) “field of literary production” or Casanova’s (2004: 82) “world literary space”, red in tooth and claw, amd more Howard Becker’s “art world”: a convivial “network of cooperating people, all of whose work is essential to the final outcome” (1982: 25)

‘Trust me I am a Football Agent’. The discursive practices of the players’ agents in (un)professional football

While the public and media attention is largely focused on the corruption scandals of high-ranking officials in international football, FIFA’s decision in April 2015 to deregulate football agents raises further concerns about its ability for self-regulation and governance. FIFA’s introduction (2006) and subsequent updating (2008, 2015) of its regulations and legal frameworks governing the activity of agents in professional football has important implications on the inner workings of international football. In this regard, FIFA’s decision to deregulate the industry is perhaps a reflection of the neoliberal influences surrounding the organisation to let the agents govern themselves and deal with the wrongdoings of the alleged bribery, exploitation and trafficking of young players. However, the deregulation of agents by FIFA can also be seen as the organisation’s inefficiency to maintain the primacy of self-regulation and self-governance in serious matters of the industry, such as agents’ global leadership and regulation of practices. This paper, using qualitative data collected from players, agents and managers from professional football leagues in the UK and Ireland, aims to uncover the unethical, extremely complex and deceptive sides of the agents’ industry. By doing so, it aims to emphasise the need for gold standards of practice and leadership in the regulation of international football, which desperately needs to restore its integrity. Two key issues are unpacked: (i) the alleged (un)ethical behaviour of football agents that provokes so much hostility in the football world; (ii) the power shift(s) from clubs and managers to agents and players and the implications these may have on the ethics of the business practices in football

Postural control in 13-year-old soccer players

To evaluate the effect of early systematic soccer training on postural control we measured center-of-pressure (COP) variability, range, mean velocity and frequency in bipedal quiet stance with eyes open (EO) and closed (EC) in 44 boys aged 13 (25 boys who practiced soccer for 5–6 years and 19 healthy boys who did not practice sports). The soccer players had better stability, particularly in the medial–lateral plane (M/L); their COP variability and range were lower than in controls in both EO (p < 0.05) and EC (p < 0.0005) condition indicating that the athletes were less dependent on vision than non-athletes. Improved stability of athletes was accompanied by a decrease in COP frequency (p < 0.001 in EO, and p < 0.04 in EC) which accounted for lower regulatory activity of balance system in soccer players. The athletes had lower COP mean velocity than controls (p < 0.0001 in both visual condition), with larger difference in the M/L than A/P plane (p < 0.00001 and p < 0.05, respectively). Postural behavior was more variable within the non-athletes than soccer players, mainly in the EC stances (p < 0.005 for all COP parameters). We conclude that: (1) soccer training described was efficient in improving the M/L postural control in young boys; (2) athletes developed specific postural strategies characterized by decreased COP frequency and lower reliance on vision

Halloween, Organization, and the Ethics of Uncanny Celebration

This article examines the relationship between organizational ethics, the uncanny, and the annual celebration of Halloween. We begin by exploring the traditional and contemporary organizational function of Halloween as ‘tension-management ritual’ (Etzioni, Sociol Theory 18(1):44–59, 2000) through which collective fears, anxieties, and fantasies are played out and given material expression. Combining the uncanny with the folkloric concept of ostension, we then examine an incident in which UK supermarket retailers made national news headlines for selling offensive Halloween costumes depicting ‘escaped mental patients’. Rather than treating this incident as a problem of moral hygiene—in which products are removed, apologies made, and lessons learned—we consider the value of Halloween as a unique and disruptive ethical encounter with the uncanny Other. Looking beyond its commercial appeal and controversy, we reflect on the creative, generous, and disruptive potential of Halloween as both tension-management ritual and unique organizational space of hospitality through which to receive and embrace alterity and so discover the homely within the unheimlich

Postural control anomalies in children with Tourette syndrome

The goal of the present study was to determine whether postural control is affected in Gilles-de-la-Tourette syndrome (TS). Center of pressure (COP) displacements were recorded in children with TS and unaffected siblings (7-16 yrs) in three conditions using a force platform: 1) Eyes-Open, 2) Eyes-Closed, 3) One-Leg standing with eyes open. The COP range and velocity were higher in children with TS than in unaffected siblings in all conditions. These differences could not be attributed to age, present tic severity, comorbidities (hyperactivity and compulsions) or medication. The data suggest that sub-clinical postural control anomalies are present in TS