The Research On Object-based Inhibition Of Return In Hearing And Deaf Subjects

Inhibition of return is a phenomenon that is found in the field of exogenous spatialselective attention. The sudden change of the stimulation in the visual periphery will affectsubsequent object processing in two distinct ways. When the temporal interval between theinitial onset cue and subsequent onset target is relatively short, the reflexive shift of spatialattention to the stimulation will facilitate the visual processing; In contrast, this relativelyfast-acting facilitation typically gives way to a slower-acting inhibition that can be observedwhen the temporal interval between the two onsets is relatively long (greater than 300ms), theresponse to the target at the cued location/object is slower than at the uncued location/object,the mechanism is called "inhibition of return". The study has discussed the characteristic ofobject-based inhibition of return in both hearing and deaf subjects. There are 1prep-experiment and 3 formal experiments in this study. All the experiments arewithin-subject design of 2×4. Based on the classical pattern, the prep-experiment studies thecharacteristic of inhibition of return in the different SOA of detection task. The experiment 1and experiment 3 respectively discuss if hearing and deaf will appear the object-based IOR indiscrimination task. The experiment 2 has studied the characteristic of object-based IOR fordeaf subjects in the different SOA of detection task. The result of experiment 1 andexperiment 3 show both hearing and deaf subjects have no IOR in the detection task. So weget the conclusion that the object-based IOR isn't a general attentive mechanism. Comparethe experiment 2 with the prep-experiment, both hearing and deaf have no IOR in thedetection task. The study indicates that compensatory theory and deficiency theory havenothing to do with this result.