Spatial-specific and object-specific audiovisual temporal recalibration
Xiangyong Yuan, Xiting Huang

Last modified: 2011-09-02

Abstract


A previous research has revealed that audiovisual temporal recalibration was spatial specific(Hanson, Roach, Heron, & McGraw, 2008). In the present study, we explored whether the spacial-specific temporal recalibration was modulated by the exact audiovisual stimulus pairs used in the exposure and test phase. For the end, two different audiovisual pairs was designed in the study, but only one for the exposure phase which was presented in the left or right side. In the test phase, either the same audiovisual pair was put in the exposed space(left or right) with the distinguished one in the unexposed space(Experiment1), or the same audiovisual pair was put in the unexposed space with the distinguished one in the exposed space(Experiment2). Given such spatial specificity, we conclude that if exposure occurs in certain space, the aftereffect should be restricted in the same space rather than transfer to other unrelevant space. This was comfirmed in Experiment1 but violated in Experiment2. In Experiment2, the aftereffect was observed in the unexposed space as well, due to the exact adapting audiovisual pair which changed its location. In summary, the results suggest such spatial-specific temporal recalibration could be modulated by adapting audiovisual objects, probablly via a top-down manner, which we named object specificity.

References


Hanson, J., Roach, N., Heron, J., & McGraw, P. (2008). Spatially specific distortions of perceived simultaneity following adaptation to audiovisual asynchrony. Perception, 37(ECVP Abstract Supplement), 27.

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