Author :
Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (933 download)
Book Synopsis Human Vestibulo-ocular Response and Purposive Arm Movements During Gz Centrifuge Stimulation by :
Download or read book Human Vestibulo-ocular Response and Purposive Arm Movements During Gz Centrifuge Stimulation written by and published by . This book was released on 1995 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes a study that investigated the kinematics and final accuracy of human arm movements under normal and increased gravity, the latter produced by rotating subjects in a centrifuge. Subjects were presented with visual targets on a laptop computer screen located above the head and viewed through a periscope, so that the subjects could not see their arm while pointing at the visual target. Gravity levels varied between 1 and 3 gravities. Effects of gravity on final pointing accuracy were quantified by paired comparisons of responses in successive blocks of experimental sessions. Stored data from the sessions were evaluated by a program which yielded the following movement characteristics: time from movement onset to peak velocity, time from peak velocity to movement end, peak velocity, and final position. Results suggest evidence for two different perceptual illusions in hyper-gravity.