<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Robins, C.</style></author><author><style face="normal" font="default" size="100%">Shepard, R. N.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Spatio Temporal Probing of Apparent Rotational Movement</style></title><secondary-title><style face="normal" font="default" size="100%">Perception and Psychophysics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Behavioral biology - Human behavior 10502</style></keyword><keyword><style  face="normal" font="default" size="100%">Biophysics - General 12100</style></keyword><keyword><style  face="normal" font="default" size="100%">Hominidae [86215] Neural Coordination Sensory Reception Behavior Nervous System Sense Organs Primates Mammalia Vertebrata Chordata Animalia 04500</style></keyword><keyword><style  face="normal" font="default" size="100%">Mathematical biology and statistical methods 07004</style></keyword><keyword><style  face="normal" font="default" size="100%">Movement 20001</style></keyword><keyword><style  face="normal" font="default" size="100%">Nervous system</style></keyword><keyword><style  face="normal" font="default" size="100%">Sense organs - General and methods 20004</style></keyword><keyword><style  face="normal" font="default" size="100%">Sense organs - Physiology and biochemistry 20504</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1977</style></year></dates><number><style face="normal" font="default" size="100%">1</style></number><volume><style face="normal" font="default" size="100%">22</style></volume><pages><style face="normal" font="default" size="100%">12-18</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">A visual bar alternately presented in vertical and horizontal orientations appeared to rotate 90.degree. through 1 of 2 pairs of opposite quadrants. Human subjects judged whether a probe dot, interjected at some delay and angular deviation from the vertical bar, appeared before or after the bar passed through the corresponding angular orientation. When the motion was perceived in the probed quadrant, percent before responses dropped abruptly from near 100% to near 0% as delay increased and the drop occurred at longer delays for probes at larger angular deviations. Under physically identical conditions, when the motion was perceived in an unprobed quadrant, percent before responses varied much less with delay and insignificantly with angular position. The accuracy of the judgments in the 1st case suggested the internal generation of an ordered sequence of intermediate representations during each apparent rotation.</style></abstract><notes><style face="normal" font="default" size="100%">Article</style></notes></record></records></xml>