We have been observing how infants between 3 and 21 months react when a vibrotactile stimulation (a buzzer) is applied to different parts of their bodies. Responses included in particular movement of the stimulated body part and successful reaching for and removal of the buzzer. Overall, there is a pronounced developmental progression from general to specific movement patterns, especially in the first year. In this article we review the series of studies we conducted and then focus on possible mechanisms that (...) might explain what we observed. One possible mechanism might rely on the brain extracting “sensorimotor contingencies” linking motor actions and resulting sensory consequences. This account posits that infants are driven by intrinsic motivation that guides exploratory motor activity, at first generating random motor babbling with self-touch occurring spontaneously. Later goal-oriented motor behavior occurs, with self-touch as a possible effective tool to induce informative contingencies. We connect this sensorimotor view with a second possible account that appeals to the neuroscientific concepts of cortical maps and coordinate transformations. In this second account, the improvement of reaching precision is mediated by refinement of neuronal maps in primary sensory and motor cortices—the homunculi—as well as in frontal and parietal corti- cal regions dedicated to sensorimotor processing. We complement this theoretical account with modeling on a humanoid robot with artificial skin where we implemented reaching for tactile stimuli as well as learning the “somatosensory homunculi”. We suggest that this account can be extended to reflect the driving role of sensorimotor contingencies in human development. In our conclusion we consider possible extensions of our current experiments which take account of predictions derived from both these kinds of models. (shrink)

THE aim of this chapter is to offer a critical examination of some recent contributions to compatibilist literature on freedom and responsibility that aim to provide broadly reasons-responsive accounts of moral agency. Although the views of several authors will be considered, discussion will be organized primarily around Daniel Dennett's "Elbow Room" (1984), an important work in the evolution of the "new compatibilism.".

[ https://plus.google.com/108060242686103906748/posts/cwvdB6mK3J6 ]"As Literature germinates within me, my words are-“Literature is something, that I need to be acclaimed for, I need to know more...it’s my life that has given me birth, my way of thoughts that I am visualizing in the perspective of all dimensions, my frailties, my faults...my every comprehensive discussion even after my death, my spiritualism, my haunting towards the ecology of the cosmic world, and the way that I have brought up at my elbows to enhance myself (...) more in the bloom of dissolved doomed tragedy of a human life! It is indeed ravenous…but we the beings to run through this midst of life, as I need to pace up with at every inception and the idealistic phenomenal moments…!”. . (http://philpapers.org/profile/112741.). (shrink)

This paper seeks to explain and evaluate, by an analytic method, the conflict between determinism and free will from the viewpoint of two physicalist reductionist philosophers, namely, Daniel Dennett and Sam Harris. Dennett is a compatibilist philosopher who tries to show compatibility between determinism and free will, while Sam Harris is a non-compatibilist philosopher who turns to determinism with the thesis that our thoughts and actions have been pre-determined by the neurobiological events associated with them, and thus, considers free will (...) to be an illusion. Therefore according to him, we are not the authors of our thoughts and actions. However, Dennett tries to establish the existence of free will through the use of concepts like control and deliberation and defends ‘free will worth wanting’. Therefore, if we take the agency of the agent and the absence of determinism as two criteria for free will, Dennett accepts both and Harris denies them; since there is neurobiological determinism, and all of Dennett’s deliberations, etc. are also determined neurobiologically. Between the two conditions of free will, Dennett accepts that the origin of action must be in the agent; however, he refutes the condition of alternate possibilities, establishing his view based on a causal theory. As a Neo-Darwinist, he explains human beings’ physical and mental phenomena based on evolution theory and despite accepting causal determinism, he shows how the agent can still have agency in decisions and actions. As a result, he does not consider determinism to requisite compulsion. In his philosophical system, one can change the future that has not yet taken place. This decision-making regarding the future takes place through the process of deliberation, which has a special place in Dennett’s view. On the other hand, by adhering to Libet’s neurological experiments, Harris refutes both conditions of free will and considers the cause of all human being actions to arise from activities of the brain and concludes that one cannot have any conscious control over one’s actions. As a result, he emerges as a non-compatibilist determinist. In both his works, The Moral Landscape and Free Will, Harris addresses the topic of free will. In Free Will, he criticizes the view of compatibilists like Dennett, who responds to those criticisms in his article, ‘Reflections on Free Will, Review of Sam Harris’ Free Will’. Like Harris, Dennett too addresses free will in his two important books, Elbow Room and Freedom Evolves. Following an analysis of the views of Dennett and Harris and explaining the criticisms of the two regarding each other, the present article will show that neither Dennett, considering the rest of the elements of his philosophical views in philosophy of mind and philosophy of action can well justify compatibilism, nor can Harris, considering his neurological approach defend his determinist idea. The conflict that is present in Dennett’s views causes his explanation of the agent being the origin of his action to also be indefensible. Furthermore, due to the incompatibility of the different elements of his view and the vagueness of his idea regarding the effect of unconscious intentions on action, Harris too is placed in a weak position. In contrast to Harris’ supposition, a human is not “a puppet [who] is free as long as he loves his strings”; rather, a human chooses, makes decisions and acts according to his own will. As a result, despite the objections that apply to both philosophers, Dennett’s view is more acceptable than Harris’ in terms of the effort to justify free will; even though neither have been apparently successful in defending their own ideas. (shrink)

In this paper, a 2 DOF industrial robotic arm is designed and simulated for elbow and wrist angle and velocity performance improvement using robust control method. Mixed H 2 /H ∞ synthesis with regional pole placement and H 2 optimal controllers are used to improve the system output. The open loop response of the robot arm shows that the elbow and wrist angles and velocities need some improvement. Comparison of the proposed controllers for an impulse and step input (...) signals have been done and a promising results have been obtained. (shrink)

Objective: The nutrient artery which enters through the nutrient foramen (NF) provides blood circulation and nutrition in long bones. This supply is essential during the growing period, the early phases of ossification, and in some surgical procedures. This study aimed to investigate NF in adult human ulnas in the Turkish population. -/- Methods: For this study, 155 (70 right and 85 left) Turkish dry adult human ulnas were used. The presence, number, and patency of NF were recorded as well as (...) its topography and direction. The vertical distance between the most proximal point of the olecranon and the proximal edge of the NF (DONF), and the longitudinal distance between the most ventral point of the coronoid process on the sagittal plane and the proximal edge of the NF (DCpNF) was calculated. Additionally, the foraminal index (FI) was assessed. -/- Results: Single and double NFs were in 139 ulnas (89.67%), and 3 ulnas (1.94%), respectively. NFs were not observed in 13 ulnas (8.39%). The majority of NFs (93.12%) were situated on the anterior surface of the ulna. The direction of all NFs was towards the elbow. The mean DONF and DCpNF were 9.48 ± 1.57 cm, and 6.68 ± 1.44 cm, respectively. The FI was 37.45% in ulnas with a single NF, while it was 41.46% in ulnas with a double NF. -/- Conclusion: Our study has presented additional information such as the FI of ulnas with 2 NFs, and the distance between the coronoid process and NF in the Turkish population. (shrink)

Purpose of the study was to find out the significant relationship between cover drive shot with selected biomechanical variables of university level male Indian cricketers. Only ten (10) men University-level cricketers from Lakshmibai National Institute of Physical Education NERC Guwahati Assam India were selected. The performance variable was the cover drive shot, whereas the other biomechanical variables were balance, the center of gravity (CG), angle of the left elbow, angle of the right elbow, angle of the left knee, (...) and angle of the right knee. During collecting data, two-dimensional (2D) videography was performed, and data was finalized using Kinovea software as filming protocols. Pearson coefficient correlation ('r') statistics are used at 0.05 level of significance to analyze a correlation between the variables. The study's findings did not correspond to the hypothesis formulation. Several factors could have influenced the study's outcomes. The number of subjects was significantly lower which affects the means of the variables because number of the subject may play a crucial role here since here, we are correlating means of the two variables at a single time. The current study found that the selected biomechanical variables had no significant correlation with cover drive performance among university level male participants in this study. (shrink)

In this study, a 2 DOF industrial robotic arm is designed and simulated for elbow and wrist angle and velocity performance improvement using robust control method. Mixed H2/H infinity synthesis with regional pole placement and H2 optimal controllers are used to improve the system output. The open loop response of the robot arm shows that the elbow and wrist angles and velocities need some improvement. Comparison of the proposed controllers for an impulse and step input signals have been (...) done and a promising results have been obtained. (shrink)