Information–movement coupling in developing cricketers under changing ecological practice constraints

Changing informational constraints of practice, such as when using ball projection machines, has been shown to significantly affect movement coordination of skilled cricketers. To date, there has been no similar research on movement responses of developing batters, an important issue since ball projection machines are used heavily in cricket development programmes. Timing and coordination of young cricketers (n = 12, age = 15.6 ± 0.7 years) were analyzed during the forward defensive and forward drive strokes when facing a bowling machine and bowler (both with a delivery velocity of 28.14 ± 0.56 m s⁻¹). Significant group performance differences were observed between the practice task constraints, with earlier initiation of the backswing, front foot movement, downswing, and front foot placement when facing the bowler compared to the bowling machine. Peak height of the backswing was higher when facing the bowler, along with a significantly larger step length. Altering the informational constraints of practice caused major changes to the information–movement couplings of developing cricketers. Data from this study were interpreted to emanate from differences in available specifying variables under the distinct practice task constraints. Considered with previous findings, results confirmed the need to ensure representative batting task constraints in practice, cautioning against an over-reliance on ball projection machines in cricket development programmes.     

Activation of nociceptin opioid peptide (NOP) receptor impairs contextual fear learning in mice through glutamatergic mechanisms

The present study investigated whether the selective nociceptin opioid peptide (NOP) receptor agonist, Ro64-6198, impairs acquisition of fear conditioning through glutamatergic mechanisms. Systemic administration of Ro64-6198 (0.3 and 1 mg/kg) or the non-competitive NMDA receptor antagonist, MK-801 (0.03 and 0.1 mg/kg) prior to conditioning severely impaired contextual but not cued fear learning in C57BL/6N mice. When administered together at sub-effective doses, Ro64-6198 (0.5 mg/kg) and MK-801 (0.05 mg/kg), synergistically impaired contextual fear learning, but left cued fear learning intact. We next used the immediate shock deficit paradigm (ISD) to examine the effects of Ro64-6198 and MK-801 on contextual memory formation in the absence of the foot-shock. As expected, naive mice that were shocked briefly after being placed in the training chamber displayed no contextual fear conditioning. This learning deficit was elevated by prior exposure of mice to the training context. Furthermore, administration of Ro64-6198 and MK-801, either separately at amnesic doses (1 mg/kg and 0.1 mg/kg, respectively) or concomitantly at sub-effective doses (0.5 mg/kg and 0.05 mg/kg, respectively) significantly reduced the facilitating effects of context preexposure. These findings demonstrate the existence of functional antagonism between NOP and NMDA receptors that predominantly contributes to modulation of conditioned fear learning which involves spatial-processing demands.     

Is desynchrony tolerance adaptable in the perceptual organization of speech?

Speech signal components that are desynchronized from the veridical temporal pattern lose intelligibility. In contrast, audiovisual presentations with large desynchrony in visible and audible speech streams are perceived without loss of integration. Under such conditions, the limit of desynchrony that permits audiovisual integration is also adaptable. A new project directly investigated the potential for adaptation to consistent desynchrony with unimodal auditory sine-wave speech. Listeners transcribed sentences that are highly intelligible, with veridical temporal properties. Desynchronized variants were created by leading or lagging the tone analog of the second formant relative to the rest of the tones composing the sentences, in 50-msec steps, ranging from 250-msec lead to 250-msec lag. In blocked trials, listeners only tolerated desynchronies <50 msec, and exhibited no gain in intelligibility to consistent desynchrony. Unimodal auditory and bimodal audiovisual forms of perceptual integration evidently exhibit different temporal characteristics, an indication of distinct perceptual functions.     

Examination of gaze behaviors under in situ and video simulation task constraints reveals differences in information pickup for perception and action

Queensland University of Technology, Brisbane, Queensland, Australia Gaze and movement behaviors of association football goalkeepers were compared under two video simulation conditions (i.e., verbal and joystick movement responses) and three in situ conditions (i.e., verbal, simplified body movement, and interceptive response). The results showed that the goalkeepers spent more time fixating on information from the penalty kick taker’s movements than ball location for all perceptual judgment conditions involving limited movement (i.e., verbal responses, joystick movement, and simplified body movement). In contrast, an equivalent amount of time was spent fixating on the penalty taker’s relative motions and the ball location for the in situ interception condition, which required the goalkeepers to attempt to make penalty saves. The data suggest that gaze and movement behaviors function differently, depending on the experimental task constraints selected for empirical investigations. These findings highlight the need for research on perceptual— motor behaviors to be conducted in representative experimental conditions to allow appropriate generalization of conclusions to performance environments.     

Statistical modelling of gaze behaviour as categorical time series: what you should watch to save soccer penalties

Previous research on gaze behaviour in sport has typically reported summary fixation statistics thereby largely ignoring the temporal sequencing of gaze. In the present study on penalty kicking in soccer, our aim was to apply a Markov chain modelling method to eye movement data obtained from goalkeepers. Building on the discrete analysis of gaze employed by Dicks et al. (Atten Percept Psychophys 72(3):706–720, 2010b), we wanted to statistically model the relative probabilities of the goalkeeper’s gaze being directed to different locations throughout the penalty taker’s approach (Dicks et al. in Atten Percept Psychophys 72(3):706–720, 2010b). Examination of gaze behaviours under in situ and video-simulation task constraints reveals differences in information pickup for perception and action (Attention, Perception and Psychophysics 72(3), 706–720). The probabilities of fixating anatomical locations of the penalty taker were high under simulated movement response conditions. In contrast, when actually required to intercept kicks, the goalkeepers initially favoured watching the penalty taker’s head but then rapidly shifted focus directly to the ball for approximately the final second prior to foot-ball contact. The increased spatio-temporal demands of in situ interceptive actions over laboratory-based simulated actions lead to different visual search strategies being used. When eye movement data are modelled as time series, it is possible to discern subtle but important behavioural characteristics that are less apparent with discrete summary statistics alone.     

Islamic Education,Possibilities, Opportunities and Tensions: Introduction to the Special Issue

If Islam continues to evoke skepticism, as it has done most intensely since 9/11, then it stands to reason that its tenets and education are viewed with equal mistrust, and as will be highlighted in this special issue, equal misunderstanding. The intention of this special edition is neither to counter the accusations Islam stands accused of, nor to offer solutions to the myriad challenges facing Muslims in majority and minority Muslim countries. As will be evidenced in the diverse offering of this compilation, the intention is to offer a different perspective, an opportunity, perhaps, to glance at both the tensions and the possibilities that Islam and Muslims have to offer not to only others, but, perhaps, more importantly, to themselves. As such, in many instances the edition, while attempting to encompass as broad a spectrum as possible in terms of multiplicity of religiosity and lived experiences of Muslims and Muslim society, is at once also a critical refection on what Muslims themselves often neglect. This means, that perhaps the tensions inherent in Islam are not so much externally constructed, as they are shaped by the reluctance of some Muslims to critically engage with their own Muslimness and way of being.     

Muslim Women and the Politics of Religious Identity in a (Post) Secular Society

Women’s bodies, states Benhabib (Dignity in adversity: human rights in troubled times, Oxford University Press, Oxford, 2011: 168), have become the site of symbolic confrontations between a re-essentialized understanding of religious and cultural differences and the forces of state power, whether in their civic-republican, liberal-democratic or multicultural form. One of the main reasons for the emergence of these confrontations or public debates, says Benhabib (2011: 169), is because of the actual location of ‘political theology’. She asserts that within the context of globalization, the concept of ‘political theology’ is complicated by its unstable location between religion and the public square; between the private and official; and between individual rights to freedom of religion versus state security and public well-being. Ultimately, therefore, the nature of the tension between religion as a political theology and the forces of state power can at best be described as a clash between identities of a collective nature (as envisaged by the nation-state) and identities of an individual nature (as manifested in different religions and cultures). Ongoing attempts to counter the ascendancy of religion, and as will be discussed in this article, specifically the ascendancy and visibility of Islamic identity as practiced by Muslim women, has brought into serious debate the notion of a (post) secular society and its implications for religious rights. What emerges from the state’s insistence that individuals not be allowed to enter the public discourse as religious beings, are, on the one hand, the constraints imposed on Muslim women by liberal democracies, and on the other hand, that Islam, as represented by Muslim women, is not constitutive of democratic citizenship. Will the inclusion and recognition of Muslim women, therefore, necessarily augment a democratic citizenship agenda, and will it lead to an alleviation of the conflict? Then, in exploring a re-articulation of an inclusive citizenship—one which is held accountable by its minimization of social inequality—what ought to be the parameters of inclusion and how should it unfold differently to what is already happening in liberal democracies?     

On the (Im)possibility of Democratic Citizenship Education in the Arab and Muslim World

The euphoria of the recent Arab Spring that was initiated in northern African countries such as Tunisia, Egypt and Libya and spilled over to Bahrain, Yemen and Syria brings into question as to whether democratic citizenship education or more pertinently, education for democratic citizenship can successfully be cultivated in most of the Arab and Muslim world. In reference to the Gulf Cooperation Council countries (Bahrain, Kuwait, Saudi Arabia, Qatar, Oman and the United Arab Emirates) in the Middle East, we argue that unless gender inequality, mostly instigated by religious-tribal and patriarchal perspectives, is eradicated, it would be impossible to engender any plausible conception of education for democratic citizenship in most of the Arab and Muslim world. Our thesis rests on an understanding that, firstly, education in the Arab and Muslim world is located in an impoverished view of education for Muslims; and secondly, that the notable absence of democratic citizenship is enhanced by gender-based discrimination in society especially in the professions and politics. We contend that education for democratic citizenship in the Arab and Muslim world is necessary and ought to be framed along a pluralist imaginary of citizenship. However, considering the continued prevalence of authoritarianism at politico-social levels our argument is that it seems feasible to enhance and at times disrupt the cultivation of national education drawing on some of the features of a pluralist imaginary of citizenship.     

Uncertainty and Resourcefulness in Performance Environments: A Theoretical Note

Abstract

The emphasis of this theoretical note focuses on the link between the concepts of uncertainty and resourcefulness in performance contexts such as professional sport and manufacturing industry. Integrative themes from sport, work, and organization psychology are highlighted. Rigid work organization based on job demarcation and inflexible role specification reduces personal control and instils perfunctory attention to work procedures. In contrast, the sociotechnical systems approach provides a framework for examining how localized control of variance in performance output may be developed through the recognition and promotion of tacit knowledge in individuals. Additionally, through consideration of the theory of learned resourcefulness, the self-regulation of goal-directed activities and a repertoire of cognitive-behavioural skills are suggested as important factors influencing productivity and health at the organizational and individual level. Throughout, the interconnection between these diverse theoretical perspectives is discussed.