Table of Contents

Contains the table of contents

Table of Contents

Contains the table of contents

Neurology

Contains reports on nineteen research projects.United States Public Health Service (B-3055-3, B-3090-3, 38101-22)United States Navy, Office of Naval Research (Contract Nonr-1841(70))Unites States Air Force (AF33(616)-7588, AFAOSR 155-63)United States Army Chemical Corps (DA-18-108-405-Cml-942)National Institutes of Health (Grant MH-04734-03)National Aeronautics and Space Administration (Grant NsG-496

Table of Contents

Contains the table of contents

Neurology

Contains reports on seven research projects.U. S. Public Health Service (B-3055-3,U. S. Public Health Service (B-3090-3)U. S. Public Health Service (38101-22)Office of Naval Research (Nonr-1841 (70))Air Force (AF33(616)-7588)Air Force (AFAOSR 155-63)Army Chemical Corps (DA-18-108-405-Cml-942)National Institutes of Health (Grant MH-04734-03

Neurology

Contains research objectives and reports on six research projects.National Science Foundation (Grant G-16526)National Institutes of Health (Grant MH-04737-03)U.S. Public Health Service (B-3055-3)U.S. Public Health Service (B-3090-3)U.S. Public Health Service (MH-06175-01A1)Office of Naval Research (Nonr-1841(70))Air Force (AFOSR 155-63)Army Chemical Corps (DA- 18-108-405-CML-942

Neurology

Contains reports on eight research projects.United States Air Force (AF33(616)-7588, AF49(638)-1130)National Science Foundation (Grant G-16526)United States Army Chemical Corps (DA-18-108-405-Cml-942)United States Public Health Service (B-3055, B-3090)United States Navy, Office of Naval Research (Contract Nonr-1841(70)

Temporal integration of motion streaks in migraine

Migraine is associated with differences in visual perception, specifically, deficits in the perception of motion. Migraine groups commonly show poorer performance (higher thresholds) on global motion tasks compared to control groups. Successful performance on a global motion task depends on several factors, including integrating signals over time. A "motion streak" task was used to investigate specifically integration over time in migraine and control groups. The motion streak effect depends on the integration of a moving point over time to create the illusion of a line, or "streak". There was evidence of a slower optimum speed for eliciting the motion streak effect in migraine compared to control groups, suggesting temporal integration is different in migraine. In addition, performance on the motion streak task showed a relationship with headache frequency

Human smooth pursuit and optokinetic nystagmus : effects of stimulus factors and instructions

Eye movements are made to improve vision. A high slip velocity of the image over the retina precludes the detection of image details. For example, the sleepers of a railway track, which are easily distinguished from one another when the train is stationary, become blurred and hard to discern when one looks down through the window of a train moving at a high speed. Visual acuity would thus be served best by fixating the eye with respect to the environment while the animal moves about. This goal is achieved approximately by the reflexive compensatory eye movements which are found in all vertebrates. These eye movements consist of a typical alternation of slow rotations of the eye opposite to the body motion and fast (saccadic) eye movements which carry the eye in the direction of the resting position. When the body motion consists of a unidirectional rotation or translation, a typical rhythmic alternation of slow and quick phases occurs which is called nystagmus. During the slow phases vision is improved, because the orientation of the eye is approximately fixed with respect to the environment, while during the brief quick phases visual sensitivity is reduced (see Matin, 1974, for a review)

Neurology

Contains reports on eleven research projects.U.S. Air Force (AF49(638)-1130)Army Chemical Corps (DA-18-108-405-Cml-942)U.S. Public Health Service (B-3055)National Science Foundation (Grant G-16526)U.S. Public Health Service (B-3090)U.S. Air Force (AF33(616)-7588)Office of Naval Research (Nonr-1841(70)