Abstract
Threshold for grating detection have been measured in six human observers for different orientations (vertical, horizontal, oblique 45° and oblique 135°). Gratings of fifteen different spatial frequencies were presented monocularly to the observers through a circular window. The area of the window was different under two experimental conditions (A=3.14°2 and B=0.785°2). In all cases, the sensitivity was higher for the vertical orientation than for the other ones. Moreover, the sensitivity was lower for all the orientations when the B window was used, in this case, the sensitivity for the oblique orientations was higher than the horizontal one.
This study has been supported by Grant DGICYT PB91-0045
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© 1995 Springer-Verlag Berlin Heidelberg
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Díaz-Otero, F., Caballero, A., Lorenzo, A., Sigüenza, J.A. (1995). Effects of spatial frequency and stimulus size on the orientation sensitivity of humans. In: Mira, J., Sandoval, F. (eds) From Natural to Artificial Neural Computation. IWANN 1995. Lecture Notes in Computer Science, vol 930. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-59497-3_232
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DOI: https://doi.org/10.1007/3-540-59497-3_232
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