28th International Congress of Psychology August 8 ... - U-netSURF

temporal perceptual thresholds than RH-LVF.
4112.7 Is there fractal in temporal perception: An experimental study, Jia-Lin Tan, China
The results of the experiments to investigate the estimation of duration using 2s,or 4s, or 8s, or 16s
as the estimated duration (called the scale of measurement), and asking subjects to estimate the
duration continuously during 160 seconds, reveal that the psychological length of duration showed
a power function with the scale of measurement. This indicates that the length is not apt to be the
measure for time perception, and that time cognitive process is a fractal. The dimension of the
fractal is an apt index of time perception. The dimension is about 1.2 in our experiments.
4112.8 Temporal relationships between events can predict behavior on simple conditioning
procedures, Mika Lorien Morgan MacInnis, Brown University, USA
The problem was to determine how the temporal relationship between events in a range of simple
conditioning procedures influences behavior. Rats were trained on simple instrumental appetitive
head entry procedures (each cycle consisted of one stimulus and one reinforcer) that fell into three
categories: backward, delay, and trace conditioning procedures. The results indicated that the
food-to-food interval, the stimulus-onset-to-food interval, and the stimulus-termination-to-food
interval determined the pattern of response. A simple model based on the expected time to
reinforcement was used to predict the observed performance. An application of a Turing test was
used to evaluate the model's predictions.
4113 ORAL
Learning, memory and cognition
Chair: Orla Patricia Hornung, Germany
4113.1 The role of forms in representational momentum: An event-related fMRI study, Hengyi
Rao 1 , Tiangang Zhou 2 , Yan Zhuo 2 , Yong Bu 2 , Lin Chen 3 , 1 Department of psychology, Sun
Yat-Sen University, China, 2 Key Laboratory of Cognitive Science, Chinese Academy of Sciences,
China, 3 Department of Radiology, Beijing Chaoyang Hospital, China
Representational momentum (RM) refers to a phenomenon that an observer’s memory of the final
position of a moving target is usually shifted a little further in the direction of its motion.
Form-transformation of the inducing figure destroyed the representation of a uniform rotating
figure and decreased RM effect. Event-related fMRI was used to investigate the cortical
activations in ventral visual cortex underlying different form-transformation RM tasks. The results
turned out that compared to the no form-transformation RM task, form-transformation of different
geometry invariants produce significant activation in different ventral pathway areas.
4113.2 REM-sleep augmentation is associated with better procedural memory performance in
healthy older adults, Orla Patricia Hornung 1 , Francesca Regen 1 , Heidi Danker-Hopfe 1 ,
Michael Schredl 2 , Isabella Heuser 2 , 1 Department of Psychiatry and Psychotherapy, Charit?-
University Medicine Berlin CBF, Germany, 2 Sleep Laboratory, Central Institute of Mental Health
Mannheim, Germany
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