BACKGROUND AND OBJECTIVES Brachial plexus block is used in surgical procedures of the upper limbs. The brachial plexus is a potential territory for absorption of local anesthetics. Studies on bupivacaine isomers have shown reduced cardiovascular toxicity of its levorotatory form (levobupivacaine). However, the anesthetic efficacy (sensorial and motor blockades) of levobupivacaine in neuroaxis b...

Egocentric tactile perception is crucial for skilled hand motor control. In order to better understand the brain functional underpinnings related to this basic sensorial perception, we performed a tactile perception functional magnetic resonance imaging (fMRI) experiment with two aims. The first aim consisted of characterizing the neural substrate of two types of egocentric tactile discriminati...

In this paper, the function of receptive and processing neurons is distinguished from that of neuronal circuits. The former, which are inside the circuits, collect and elaborate sensorial information to build “objects” which are spatially and temporally well-structured and vary in intensity. These objects are the modal components of sensory systems: hot/cold, smooth/rough, green, table, sound, ...

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Background: fine motor function of school-aged children with dyslexia, learning disabilities and learning difficulties. Aim: this study aimed to characterize the fine motor, sensory and perceptive function of school-aged children with dyslexia, learning disabilities and learning difficulties and to correlate these results with the analysis of the children’s handwriting. Method: participants wer...

OBJECTIVES Work-related psychosocial hazards are associated with adverse health outcomes among workers. The association between psychosocial hazards and physiological health outcomes among laboratory technicians has not been studied previously. The objective of this study was to measure the association between work-related psychosocial hazards and the level of urinary catecholamines of laborato...

This paper deals with the localization and map building paradigm in an unknown indoor environment. We propose an exploration method based on the use of the sensorial data provided by an omnidirectional stereoscopic vision system. The first part of our study is linked with the problem of sensorial model construction with two omnidirectional images obtained by a rigid translation along a rail of ...

PURPOSE To show the distribution of ocular dominance as measured with sensory and eye sighting methods and its potential relationship with high and low contrast LogMAR visual acuity in presbyopic subjects. METHOD Forty-four presbyopes (48.5 ± 3.5 years) participated in this study. Ocular dominance was determined by eye sighting (hole-in-card) and sensorial (+1.50 D lens induced blur) methods....

The automatic design of controllers for mobile robots usually requires two stages. In the first stage, sensorial data are preprocessed or transformed into high level and meaningful values of variables which are usually defined from expert knowledge. In the second stage, a machine learning technique is applied to obtain a controller that maps these high level variables to the control commands th...