Effect of rectangle length on velocity thresholds for real movement.

نویسندگان

  • B Mates
  • C H Graham
چکیده

New data are reported on the influence of size on the velocity threshold for real movement. As the length of a narrow stimulus object increases, width remaining constant, the velocity threshold also increases. These findings are discussed in relation to some psychophysical experiments on contrast and some physiological experiments on motion.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Perceptions of depth elicited by occluded and shearing motions of random dots.

A computer-controlled display of random dots was used to study perceptions of depth. In this display, a field of stationary random dots surrounded a rectangular area in which random dots moved with uniform velocity in a single direction. The boundaries of this rectangle did not move. When dot motion was perpendicular to the longer boundary of the rectangle (occluded motion), the rectangle seeme...

متن کامل

Prediction of height and time of jump in elite female volleyball players with selected kinematic variables

Regarding the effects of the kinematics of the movement on athletic performance and the Importance of promoting athlete’s performance on the sport fields, there is limited knowledge about the mechanism of the effect of different variables of volleyball spike. Therefore, the aim of this study was the prediction of jump performance in elite female volleyball players with selected kinematic variab...

متن کامل

بررسی تاثیر وزن اجسام بر روی پارامترهای استاتیک و دینامیک ستون فقرات در 32 مرد جوان

The effect of some anthropometric factors and loading on paravertebral muscles was tested in this study. Thirty two healthy men with mean age of 25.25 years participated in this study. They didn't have history of low back pain since 12 months ago. The effect of weight, height, upper limb length, abdominal & chest circumference and upper body height and other factors e.g. body mass and functiona...

متن کامل

اثر طول کلمه و نوع حروف چاپی (فونت) بر حرکات چشم (تثبیت، جهش، واپسگرد) در حین خواندن متن آشنا و ناآشنا

The main purpose of this study was to determine the effects of word length and font type of eye movement (fixation, saccade, regression) during reading Persian familiar and unfamiliar passages. 29 female students of Shahid Beheshti University Education & Psychology Faculty participated in this study. Stimuli consisted of four different texts consisting of familiar text-lotus font, familiar-pen ...

متن کامل

BMC Ear, Nose and Throat Disorders

Background: Previous attempts to measure otolith function using ocular counter-rolling have shown poor sensitivity and specificity, thereby hindering a useful clinical application. We have conducted a study to investigate whether thresholds for the perception of the direction of linear acceleration might be an alternative for the clinical evaluation of otolith or statolith function. Methods: Pe...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Proceedings of the National Academy of Sciences of the United States of America

دوره 65 3  شماره 

صفحات  -

تاریخ انتشار 1970