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Time constants in the perception of a change in the direction of motion in humans.
- Source :
-
Neuroscience letters [Neurosci Lett] 2003 Sep 04; Vol. 348 (1), pp. 56-60. - Publication Year :
- 2003
-
Abstract
- Motion signals are subject to spatio-temporal filtering at early stages of processing. In general, motion can be characterized by two parameters: speed and direction. This study sought to determine the time constants for the filtering of the directional component of the motion signal. In a forced-choice discrimination task, subjects were asked to choose the more abrupt change in direction of a target that moved through two 90 degrees corners. At each corner, direction of motion was low-pass filtered. Subjects were able to reliably perform this task if the filter time constants differed by >20 ms.
Details
- Language :
- English
- ISSN :
- 0304-3940
- Volume :
- 348
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Neuroscience letters
- Publication Type :
- Academic Journal
- Accession number :
- 12893424
- Full Text :
- https://doi.org/10.1016/s0304-3940(03)00712-2