The glucoregulatory response to intense exercise [IE, >80% maximum O(2) uptake (VO(2 max))] comprises a marked increment in glucose production (R(a)) and a lesser increment in glucose uptake (R(d)), resulting in hyperglycemia. The R(a) correlates with plasma catecholamines but not with the glucagon-to-insulin (IRG/IRI) ratio. If epinephrine (Epi) infusion during moderate exercise were able to m...

We recorded the initial vertical vergence eye movements elicited in monkeys at short latency ( approximately 70 ms) when the two eyes see one-dimensional (1D) horizontal grating patterns that are identical except for a phase difference (disparity) of one-quarter wavelength. With gratings composed of single sine waves, responses were always compensatory, showing Gaussian dependence on log spatia...

Antecedentes: La gravedad de la reacción tras una picadura de himenópteros se ha relacionado con la presencia de niveles elevados de triptasa sérica. El propósito del estudio fue cuantifi car los niveles basales de triptasa en pacientes con alergia al veneno de himenópteros e investigar la posible correlación entre estos niveles y la gravedad de la reacción a la picadura. Métodos: Participaron ...

This paper investigates two types of eye movements: vergence and saccades. Vergence eye movements are responsible for bringing the images of the two eyes into correspondence, whereas saccades drive gaze to interesting regions in the scene. Control of both vergence and saccades develops during early infancy. To date, these two types of eye movements have been studied separately. Here, we propose...

When we look between objects located at different depths the horizontal movement of each eye is different from that of the other, yet temporally synchronized. Traditionally, a vergence-specific neuronal subsystem, independent from other oculomotor subsystems, has been thought to generate all eye movements in depth. However, recent studies have challenged this view by unmasking interactions betw...

ABSTRACT Binocular eye movements form a finely-tuned system that requires accurate coordination of the oculomotor dynamics and supports the vergence movements for tracking the fine binocular disparities required for 3D vision, and are particularly susceptible to disruption by brain injury and other neural dysfunctions. Saccadic dynamics for a population of 84 diverse participants show tight coe...

We tested between two coding mechanisms that the brain may use to retain distance information about a target for a reaching movement across vergence eye movements. If the brain was to encode a retinal disparity representation (retinal model), i.e., target depth relative to the plane of fixation, each vergence eye movement would require an active update of this representation to preserve depth c...

This paper describes a real-time vergence control mechanism based on log-polar images, developed for a robot head. We show that vergence behavior can be achieved at reduced computational cost using simple correlation measures on log-polar images. The main advantages of using a non-uniform image sampling mechanism, such as the log-polar images, are related both to perceptual and algorithm comple...

The authors provide a consideration of the vergence system and suggest an extension of the original model proposed by H. Heuer, M. Drawer, T. Romer, H. Kroger, and H. Knapp (1991) to explain why preferred vertical gaze angle is downward when fixating proximal targets. The practical implication of the revised model is that heterophoria (open-loop vergence bias) provides an indication of potentia...

La razón por la que se le da un nombre a los conjuntos con una operación que verifica las 5 propiedades mencionadas, es que se observó que hay much́ısimos conjuntos que, junto con una operación, verifican esas propiedades (por ejemplo, con la suma, Q , R , C , R , R[X] , . . . ) y entonces, a fin de estudiar las consecuencias de esas propiedades, conviene hacerlo de una vez por todos en el caso ...