A fundamental problem in spoken language is the duality between the continuous aspects of phonetic performance and the discrete aspects of phonological competence. We study 2 instances of this problem from the phenomenon of voicing neutralization and vowel harmony. In each case, we present a model where the experimentally observed continuous distinctions are linked to the discreteness of phonological form using the mathematics of nonlinear dynamics.

In Black Museum, a young woman is out to take revenge on the man who imprisoned her father's digital self in a museum exhibit that allows sadistic visitors to reenact his execution. While the exhibit is morally detestable and some may think that the museum's curator gets what he deserves in the end, the woman's act of vengeance is morally disturbing. This chapter explores Martha Nussbaum's account of anger and forgiveness and considers Christian and Buddhist teachings. An argument by David (...) Kyle Johnson for the moral permissibility of revenge under certain circumstances is considered and rejected. The authors conclude that the act of revenge in Black Museum is not morally justified. (shrink)

For patients with multiple sclerosis, deficits in gait significantly reduce the quality of life. Using the concept of muscle synergies, this study investigated the modular organization of motor control during level and inclined walking in MS patients compared with healthy participants to identify the potential demand-specific adjustments in motor control in MSP. We hypothesized a widening of the time-dependent activation patterns in MSP to increase the overlap of temporally-adjacent muscle synergies, especially during inclined walking, as a strategy to increase the (...) robustness of motor control, thus compensating pathology-related deficits. We analyzed temporal gait parameters and muscle synergies from myoelectric signals of 13 ipsilateral leg muscles using non-negative matrix factorization. Compared with HP, MSP demonstrated a widening in the time-dependent coefficients, as well as altered relative muscle contribution, in certain synergies during level and inclined walking. Moreover, inclined walking revealed a demand-specific adjustment in the modular organization in MSP, resulting in an extra synergy compared with HP. This further increased the overlap of temporally-adjacent muscle synergies to provide sufficient robustness in motor control to accomplish the more demanding motor task while coping with pathology-related motor deficits during walking. (shrink)

Understanding the neuromechanical responses to perturbations in humans may help to explain the reported improvements in stability performance and muscle strength after perturbation-based training. In this study, we investigated the effects of perturbations, induced by unstable surfaces, on the mechanical loading and the modular organization of motor control in the lower limb muscles during lunging forward and backward. Fifteen healthy adults performed 50 forward and 50 backward lunges on stable and unstable ground. Ground reaction forces, joint kinematics, and the electromyogram (...) of 13 lower limb muscles were recorded. We calculated the resultant joint moments and extracted muscle synergies from the stepping limb. We found sparse alterations in the resultant joint moments and EMG activity, indicating a little if any effect of perturbations on muscle mechanical loading. The time-dependent structure of the muscle synergy responsible for the stabilization of the body was modified in the perturbed lunges by a shift in the center of activity and a widening. Moreover, in the perturbed backward lunge, the synergy related to the body weight acceptance was not present. The found modulation of the modular organization of motor control in the unstable condition and related minor alteration in joint kinetics indicates increased control robustness that allowed the participants to maintain functionality in postural challenging settings. Triggering specific modulations in motor control to regulate robustness in the presence of perturbations may be associated with the reported benefits of perturbation-based training. (shrink)

Principles of Islamic teaching in the light of Korān and Hadith (Islamic traditions).

Tradycyjne teorie psychologii moralności podkreślają rolę rozumowania i „wyższych procesów poznawczych”, podczas gdy ostatnie prace z tego zakresu uwypuklają udział emocji. W niniejszym artykule rozpatruję dane pochodzące z neuroobrazowania wspierające teorię sądzenia moralnego, zgodnie z którą zarówno procesy „poznawcze”, jak i emocjonalne pełnią istotne a czasami wzajemnie konkurencyjne role. Dane te wskazują, że rejony mózgu związane z kontrolą poznawczą (przednia część zakrętu obręczy i grzbietowo boczna kora przedczołowa) są zaangażowane w rozwiązywanie trudnych moralnych dylematów, w których wartości utylitarne wymagają naruszenia (...) „osobistej” sfery moralnej, co wiąże się ze wzrostem aktywności rejonów mózgu związanych z emocjami i poznaniem społecznym (przyśrodkowa kora przedczołowa, górna bruzda skroniowa, tylna część zakrętu obręczy, bieguny skroniowe, ciało migdałowate). Odkryliśmy także, że aktywność w~obszarach mózgu obejmujących przednią część grzbietowo bocznej kory przedczołowej prognozuje różnice w sądzeniu moralnym, w odmiennych warunkach — obszary te wykazują większą aktywność podczas wydawania sądów o~charakterze utylitarnym. Przypuszczam też, że coraz lepsze rozumienie fizjologicznych i neuronaukowych podstaw wydawania sądów moralnych może mieć wpływ na rozwiązywanie dylematów moralnych w~świecie realnym. (shrink)

ABSTRACT The article attempts to present the monograph Enlightenment and Revolution: The Making of Modern Greece by Paschalis M. Kitromilides, through its main protagonist, Adamantios Korais. Special emphasis is given to the main feature of the book, which is linking the history of ideas with the history of material life, ie theory and practice. In this way, the historiographical method of Kitromilides and its originality are examined at the same time.