This study concerns the retinotopic organization of the ganglion cell fibres in the visual system of the frog Xenopus laevis. HRP was used to trace the pathways taken by fibres from discrete retinal positions as they pass from the retina, along the optic nerve and into the chiasma. The ganglion cell fibres in the retina are arranged in fascicles which correspond with their circumferential posit...

An 8-year-old girl presented with progressive painless right peroneal and tibial nerve palsy. A 20-year-old woman had insidious weakness of the left wrist and fingers extension. Both underwent neurophysiology (tables e-1 through e-4 on the Neurology® Web site at Neurology.org) and nerve ultrasound that showed enlargement of sciatic (figure, A) and radial nerve (figure, D–E). A 3D–magnetic reson...

AIM To compare levels of combined exposure to white spirit, toluene, butyl acetate, ethyl acetate, and xylene in the manufacturing of paint, cartridge, drying, and top-coat sections of paint and lacquer industry, and peripheral nerve conduction parameters in the exposed workers. METHODS The exposed group comprised 120 workers while the control group included 110 workers who had never been exp...