TY  - JOUR
PY  - 1999//
TI  - Dynamic instability of visuospatial images
JO  - Journal of experimental psychology: human perception and performance
A1  - Giraudo, M. D.
A1  - Pailhous, J.
SP  - 1495
EP  - 1516
VL  - 25
IS  - 6
N2  - Five experiments using a visuospatial task were conducted to study memory accuracy and variability and to identify the origin of variations in steady states. This research was conducted from a dynamical perspective, that is, by analyzing the temporal course of discrepancies between the perceptual configuration and its memory (accuracy) and the temporal course of discrepancies between 2 successive memories (variability). In Experiment 1 the stimulus (12 black dots randomly disposed) was presented repeatedly to assess the general evolution of accuracy and variability. In Experiments 2 and 3 memory accuracy and memory variability were separated to identify their relationship. In Experiments 4 and 5 memory variability was studied to determinate the origin of steady state variations. Results show that memory accuracy and memory variability evolved independently and that memory variability reached a threshold that was subject-dependent. The dynamic properties of image construction and stability are discussed.<p /> <p>Language: en</p>
LA  - en
SN  - 0096-1523
UR  - http://dx.doi.org/
ID  - ref1
ER  -