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Although psychology is the science of mental life and behavior, little attention has been paid to the means by which mental life is translated into behavior. One domain in which links between cognition and action have been explored is the manipulation of objects. This article reviews psychological research on this topic, with special emphasis on the(More)
Humans (Homo sapiens) anticipate the consequences of their forthcoming actions. For example, they grasp objects with uncomfortable grasps to afford comfortable end positions-the end-state comfort (ESC) effect. When did such sophisticated motor planning abilities emerge in evolution? We addressed this question by asking whether humans' most distant living(More)
OBJECTIVE The use of cerebral angiography (ANGIO) to select patients for carotid endarterectomy (CEA) has been limited by concern about the risk of complications of the procedure. The authors sought to determine the rate of neurologic complications at both an academic medical center (AMC) and a community hospital (CH). METHODS The authors reviewed the(More)
Actions that are chosen have properties that distinguish them from actions that are not. Of the nearly infinite possible actions that can achieve any given task, many of the unchosen actions are irrelevant, incorrect, or inappropriate. Others are relevant, correct, or appropriate but are disfavored for other reasons. Our research focuses on the question of(More)
Vaesen asks whether goal maintenance and planning ahead are critical for innovative tool use. We suggest that these aptitudes may have an evolutionary foundation in motor planning abilities that span all primate species. Anticipatory effects evidenced in the reaching behaviors of lemurs, tamarins, and rhesus monkeys similarly bear on the evolutionary(More)
Transfer functions of the input impedance Z(f) and coupling ratio H(f) were measured from the paired Retzius cells of leech segmental ganglia, using sinusoidal and pseudorandom test test currents. The data were compared with two classes of linear electric circuit models of electrotonic coupling, one with a purely resistive junction, and the other with a(More)
1. Afferent discharges from single atrial mechanoreceptors were studied in vitro in isolated, perfused cat hearts, by balloon inflation and by localized endocardial stretching with step and ramp wave forms. 2. Receptor excitability could be maintained for several hours with perfusion, but failed reversibly within a half hour without it. 3. Responses to pure(More)
OBJECTIVE To determine the effectiveness of an Acute Stroke Triage Pathway in reducing door to needle times in acute stroke treatment with IV t-PA. BACKGROUND A previous study at our tertiary referral centre, examining IV t-PA door to needle times, was completed in 2000. The median door to needle time was beyond the recommended National Institute for(More)
AutoFP, a highly automated software toolkit, has been developed to improve the extent of automation of the widely used Rietveld refinement program An expert system algorithm is used as the control layer to simulate the manual process when FullProf is used to perform Rietveld refinement. This enables the program to complete the Rietveld refinement highly(More)