TY  - JOUR
PY  - 1991//
TI  - Combining shape and position expectancies: hierarchical processing and selective inhibition
JO  - Journal of experimental psychology: human perception and performance
A1  - Klingstone, A.
A1  - Klein, R.
SP  - 512
EP  - 519
VL  - 17
IS  - 2
N2  - Two experiments report the effects of generating a concurrent position expectancy and form expectancy. Ss were precued to a stimulus position where 1 target shape was most probable, and they made a speeded 2-choice response to the orientation of the displayed shape. Response time (RT) was faster for an expected position than an unexpected position and faster for a likely shape than for an unlikely shape. This replicates the work of Lambert and Hockey (1986). It was also observed, however, that when a stimulus appeared at an unexpected position where 2 shapes were equally improbable, RT was slower for the shape that had been likely rather than unlikely at the cued position. This finding is incompatible with the probability-matching hypothesis of Lambert and Hockey. The data support a hierarchical-expectancy model of attentional selectivity.<p />  <p>Language: en</p>
LA  - en
SN  - 0096-1523
UR  - http://dx.doi.org/
ID  - ref1
ER  -