Integration of Position and Predictive Motion Signals in Aging Vision.

We examined the effect of aging on the integration of position and motion signals, which is essential for tracking visual objects, using the motion-induced position shift (MIPS) phenomenon. We first measured the MIPS and bias in speed perception at three eccentricities. Both young and older adults showed the increasing MIPS and decreasing perceived speed as the eccentricity increased, which is consistent with previous literature.

Popliteal sciatic nerve block versus spinal anesthesia in hallux valgus surgery.

Background: We compared clinical properties and patient satisfaction between spinal anesthesia and popliteal sciatic nerve block (PSNB) for hallux valgus surgery.

Methods: Forty patients undergoing hallux valgus surgery were divided into spinal group (spinal anesthesia with 2.5 ml of 0.

A practical MRI grading system for osteoarthritis of the knee: association with Kellgren-Lawrence radiographic scores.

Purpose: To propose a reproducible and constant MR grading system for osteoarthritis of the knee joint that provides high interobserver and intraoberver agreement and that does not require complicated calculation procedures.

Materials And Methods: This retrospective study sample included 44 men and 65 women who underwent both MRI and plain radiography of the knee at our institution. All patients were older than 50 years of age (mean 57.